CRG Discussion Forum
Welcome, Guest. Please login or register.
Did you miss your activation email?
December 18, 2014, 08:33:53 PM

Login with username, password and session length
Search:     Advanced search
Welcome to the CRG Discussion Forum!
Forum registration problems: Make sure you enter your email correctly and you check your spam box first. *Then* email KurtS2@gmail for help.
107480 Posts in 12505 Topics by 4810 Members
Latest Member: rustoleumm
* Home Help Search Login Register
+  CRG Discussion Forum
|-+  Camaro Research Group Discussion
| |-+  Originality
| | |-+  1969 Z/28 motor mounts
« previous next »
Pages: 1 2 3 ... 5 [All] Print
Author Topic: 1969 Z/28 motor mounts  (Read 9976 times)
sam
Member
***
Posts: 232


View Profile Email
« on: November 20, 2006, 09:16:23 PM »

Were the original 69 Z/28 motor mounts non locking? What was the part number on them?  Thanks,  Sam
Logged
JohnZ
CRG Member
*****
Posts: 4158


View Profile Email
« Reply #1 on: November 21, 2006, 03:12:01 PM »

Z/28 and L-48 used the same mounts - don't have the number handy - maybe Ed does.
Logged

'69 Z/28
Fathom Green
CRG
Dave69x33
Member
***
Posts: 346



View Profile Email
« Reply #2 on: December 02, 2006, 11:33:56 PM »

According to Jerry MacNeish in is book, The Definitive 1969 Camaro Z/28-SS396 Fact Book, pp.202, the 69 Camaro motor mounts were P/N-3990518.  These mounts were used in combination with motor mount frame brackets P/N-3945507 and 3945508, which were redesigned for added strength for the 302 and 350 engines.

These frame brackets are on my 69Z but unfortunately, the original motor mounts were replace buy a previous owner during a partial restoration.
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #3 on: February 14, 2013, 01:39:49 AM »

According to Jerry MacNeish in is book, The Definitive 1969 Camaro Z/28-SS396 Fact Book, pp.202, the 69 Camaro motor mounts were P/N-3990518.  These mounts were used in combination with motor mount frame brackets P/N-3945507 and 3945508, which were redesigned for added strength for the 302 and 350 engines.

These frame brackets are on my 69Z but unfortunately, the original motor mounts were replace buy a previous owner during a partial restoration.

I know the above is an old posting, but it seemed to be the latest and most detailed in the archives, and I believe there is an error in the '69 302 mount referenced.   I was investigating some *issues* with motor mounts for my '69 302, after having my headers hit my floor pan.  I changed the motor mounts from the mounts I was using (GM PN 3968700/3962748/3962740/3974735) and Yes, the parts had all these pn's emprinted in the rubber, and bought two parts store mounts, which lowered the engine about 1/2" and helped with the issue of headers hitting floor.   Doing some digging in ebay, I found that various sellers listed the above part numbers (3962748) as being correct for '69 Camaros.  I also found one or two ads for 3990918 pn as being NOS correct for '69 Z28, so I dug out my old 1970 P&A books and found the following:
1969 Chevy, Camaro (302, 350, 396) ...  PN  3990918
1970 Pass (S/W) w/2BC 350                   PN  3968700
1970 Police (454), All (396), Camaro w/Sp.H/Per (350)   PN 3968700
1970 Chevelle w/4BC (400, 454), MC (exc 400 w/4BC, 454), Chevelle (350)  PN 3962740
etc.   also some 70 models  PN 3962748

The McNeish book seems to have had a typo if 3990518 is listed for the '69 z28 mounts (I haven't got my book handy to check that).

If anyone has other or additional information to add to this, I'd love to hear it.   I want to make sure my 302 is sitting at the correct height in my Z28.
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
Ed Bertrand
CRG Member
*****
Posts: 2333


View Profile
« Reply #4 on: February 14, 2013, 11:56:36 AM »

Quote
The McNeish book seems to have had a typo if 3990518 is listed for the '69 z28 mounts

That could very well be. I can't find that part number anywhere!

Ed
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #5 on: February 14, 2013, 12:06:38 PM »

That was an old post by Dave69x33 (from 2006) which (no one ever corrected) which stated the incorrect PN for the mount, referencing McNeish's fact book.   Either he made a typo, or Jerry has corrected the mistake, because in the 4th edition (revised) of Jerry's fact book, the correct PN (3990918) is now correctly referenced!
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
1968RSZ28
Hero Member
*****
Posts: 4857



View Profile
« Reply #6 on: February 14, 2013, 12:52:49 PM »

Yup, I believe Dave made a typo (3990518).  Jerry's 3rd edition also references the correct motor mount part number, 3990918.

Paul
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #7 on: February 14, 2013, 01:29:22 PM »

Anyone got a suggestion for the *best* source for a compatible motor mount (for the 3990918 chevy pn)?   I don't really feel like paying several hundred $$ for NOS gm versions.. Smiley
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
Ed Bertrand
CRG Member
*****
Posts: 2333


View Profile
« Reply #8 on: February 14, 2013, 01:43:33 PM »

This is really strange. 3990918 superceeded 3962748 in 1971, but 3990918 was then superceeded BY 3962748 again in 1990! And 3962748 is still available from your local GM dealer (gmpartsdirect.com shows them for $51.51 each). What the differences are, I don't know, but I found it interesting that 3962748 was superceeded by 3990918, and then 3990918 was superceeded by 3962748 later on! A big circle here!

Ed
Logged
crobjones2
Member
***
Posts: 311


View Profile
« Reply #9 on: February 14, 2013, 07:56:23 PM »

Is 3990918 the part number of the recalled motor mounts? or was the leash the only change as part of the recall?
Logged

Chris
69 SS 350
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #10 on: February 14, 2013, 10:42:49 PM »

The 3962748 seems to be a bit thicker (as much as 1/2") than the 3990918 part... which raises the motor a little, enough to cause my headers to hit my floorboard of my car.   I put 'parts store' mounts in and they are shorter than the 3962748 parts.   I don't have 'new' 3990918 parts to directly compare.
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
tmodel66
Hero Member
*****
Posts: 1212


View Profile Email
« Reply #11 on: February 15, 2013, 09:50:12 AM »

Gary I had the same problem when we built my car. The parts store mount too high. I was lucky and found an old set of Anchor brand name mounts. You can still get these from Anchor online. If you buy from them be sure and buy the 396 mounts to fit your application. They don't list the 302 and the 350 mounts are the regular passenger car mounts. Here's the link Anchor
Logged

Daniel  
'69 SS 350/4 speed  Fathom Green--POP
lynnbilodeau
Member
***
Posts: 264


View Profile Email
« Reply #12 on: February 15, 2013, 12:54:50 PM »

Lots of misinformation out there on motor mounts.

Ed, are you saying the 918 mount didn't exist in 1969?  I was under the impression that all the 67 and 68 Camaros received non locking mounts.  Early 69 cars received non locking mounts, and later (not sure when the change took place) cars received the locking 918 mount.

I had a set of the 918 mounts that I sold to a guy up in Canada, eh.  There were three part numbers embossed on the side with a written color code after each number.  IIRC, the 918 number was followed by the word "GREEN"  and there was green paint swabbed on the side over all three part numbers.  I believe the rubber mold was the same for all three (hence three part numbers) with slight differences in the metal part that it was molded to.

Only way to tell which part number you had visually was to see what color paint was swabbed on the side.

Kind of like the early alloy valve covers.  They have two part numbers embossed on the inside followed by the words "Aluminum" and "Magnesium" (may be abbreviated) so that you have to figure out which metal you have to know which part number applies.  That way they could use the same mold for both.

So.... anyone know for sure:

1.  What part number mount was used early 69
2.  What part number mount was useed late 69
3.  When did they change over (if they did).
Logged
Ed Bertrand
CRG Member
*****
Posts: 2333


View Profile
« Reply #13 on: February 15, 2013, 02:38:39 PM »

Here's the deal.

If you look in the 1969 AIM (UPC Z28, sheet A4), the motor mount (item #4) states that it's a "PRODUCTION PART". This means it's the same as the base V8 shown on UPC 6, sheet B4, item #2, P/N 3964895, which is a non-locking mount).

The September, 1968 P&A 34 shows TWO service part numbers for the 1969 302! The first is 3886466, which I believe to be the non-locking mount, and the second is 3939728, which I believe to be the locking mount (see attached). No dates given for any changeover, so that's of no use at all. Another kicker is the September, 1968 P&A X691A shows P/N 3939728 as being used on the 302, the 350 AND the 327!

The 3990918 part number doesn't show up until the 1970 P&A, so to be "factory correct", you have to have the 3964895 mounts.

The problem is, it's not longer available. It was superceeded in January of 1971 by P/N 3989488, which was then superceeded in January of 1973 by P/N 3990914.

3990914 is shown in the 1972 P&A as being used in the 69 Camaro with 307 or 327, and P/N 3990918 as being used on the 69 Camaro with the 350, 396 and 302 engines, so somewhere along the line, things got really cobbled up.

Ed
« Last Edit: February 15, 2013, 02:58:58 PM by Ed Bertrand » Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #14 on: February 15, 2013, 02:56:44 PM »

Thanks for the digging Ed..   It's at least good that someone agrees with me that it's a screwed up mess..  Smiley
My main concern was the 'height' of the mount.  Today, I retreived another part number from my 'old garage', and did some photographs showing 3 different motor mounts.   The ones the parts store sold me for the 302 actually don't even fit the engine stand (on the frame).    The frame stand has a width of ~ 2.5".   The mount the parts store sold me has a 3" wide saddle to fit over that 2.5" stand, so there's a lot of slop and I'm inclined to believe that would be a problem.    Another difference I noted was the thru hole for the bolts that hold the motor mount to the frame stand.   Two of the engine mounts I looked at had an 'oblong' thru hole, which would allow a little alignment wiggle, while the 3962748 motor mount has a round hole sized to the bolt (no wiggle at all).   I think my memory tells me that the original mounts had an oblong thru hole... but I've got no data for that.
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
Ed Bertrand
CRG Member
*****
Posts: 2333


View Profile
« Reply #15 on: February 15, 2013, 03:08:36 PM »

I didn't even mention items 5 through 10 (UPC Z28, sheet A4), which were added to the AIM on 6-2-69 (?). I believe these were a stop gap measure before the locking mounts were available. In fact, item #5 is called a "STOP"! It's a LEFT HAND item only, so it kind of adds to the above chart. Note the P/N 3886466 shows A.R. (As Required), and the P/N 3939728 shows only 1 being used.

For service requirements, I believe the 3886466 (non-locking mount) was attached to the right side of the engine and the 3939728 (locking mount) was attached to the left side of the engine!

For production, I have a feeling (no proof) that locking mounts were never used on the 302, but a stop gap measure was applied at some point during the production run. My copy of the AIM shows the date, but the month is kind of light and I can't be sure it's a 6 (June). Does anyone have a better copy that shows the month?

Ed
Logged
1968RSZ28
Hero Member
*****
Posts: 4857



View Profile
« Reply #16 on: February 15, 2013, 03:12:02 PM »

Here's a few photos of a NOS 3886466 mount that was sold on Ebay last month...

http://www.ebay.com/itm/NOS-1961-1966-CHEVROLET-IMPALA-PASS-CAR-CORVETTE-409-396-427-MOTOR-MOUNT-3886466-/160952620273?pt=Vintage_Car_Truck_Parts_Accessories&vxp=mtr&hash=item25798614f1&nma=true&si=ISS%252BUXUgyJIHq7fDO3Dqcu0xHtk%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

Paul
Logged
tmodel66
Hero Member
*****
Posts: 1212


View Profile Email
« Reply #17 on: February 15, 2013, 03:44:24 PM »

The 466 is the wrong mount. It's too wide for the engine stand and flops like a fish when you put it on.
Logged

Daniel  
'69 SS 350/4 speed  Fathom Green--POP
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #18 on: February 15, 2013, 04:50:19 PM »

The two photos below are of:
1)  the 3886466 mounts,  
2)  a top down view of three different mounts showing the width across the frame stand:
     On Left)  parts store mount for 302 (3" wide),
     in middle)   3886466 mount
     on right)  The 3962478 mount

The 3886466 mount is only maybe 1/8" wider than the 3962478 mount, but the parts store mount is WAY wide (3").
The 3962478 mount has a round hole for the attachment to the frame stand, the other two mounts have oblong holes.
The 3962478 mount is approximately 1-1/2" high/thick, the other two are almost the same height, or thickness, about 1".
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
lynnbilodeau
Member
***
Posts: 264


View Profile Email
« Reply #19 on: February 15, 2013, 06:49:31 PM »

I am more confused then ever.

According to the GMparts wiki, the stop was not discontinued until 1975:

http://www.gmpartswiki.com/getpage?pageid=23193

dealer cost was $1.02
Logged
lynnbilodeau
Member
***
Posts: 264


View Profile Email
« Reply #20 on: February 15, 2013, 11:15:49 PM »

Chuck has a pair from a low mileage Z on epay.  I asked him if he knows the build date on the car they came from.

http://www.ebay.com/itm/1969-Camaro-Z28-original-GM-motor-mounts-302DZ-/330683645335?pt=Motors_Car_Truck_Parts_Accessories&hash=item4cfe47fd97&vxp=mtr
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #21 on: February 15, 2013, 11:22:14 PM »

From the photo, I think the width of that motor mount on the left is TOO wide for the Z28 frame stand...   Can't quite tell with the one on the right; it could be the right width..?

Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
Fred Mertz
Member
***
Posts: 22


View Profile
« Reply #22 on: February 16, 2013, 01:04:19 AM »

I don't know what the practice was in '69 but today when a part number changes and they are physically still the same, the change is due to a change in vendors.  The number change is how they keep track of inventory when a vendor change is made.

(34 years Mercedes Benz parts experience at the dealership level)

Just my 2 cents,  Dave
Logged
firstgenaddict
Hero Member
*****
Posts: 1276



View Profile WWW
« Reply #23 on: February 16, 2013, 11:53:08 AM »

This is the correct non locking motor mount, there was an extended discussion on this a couple of years ago, it showed the extra parts that were added later in the year in order to keep the motor mount from separating.




Logged

James
Collectin' Camaro's since "Only Rednecks drove them"
 
Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://picasaweb.google.com/112392262205377424364/1969_Z28_Restoration
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #24 on: February 16, 2013, 04:38:39 PM »

Trying to read the part number:   Is it 3939728?  do you recall how they ascertained that was the production PN?  Is there factory documentation?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
JohnZ
CRG Member
*****
Posts: 4158


View Profile Email
« Reply #25 on: February 17, 2013, 11:19:24 AM »

I don't know what the practice was in '69 but today when a part number changes and they are physically still the same, the change is due to a change in vendors.  The number change is how they keep track of inventory when a vendor change is made.

That's not the case with GM parts; drawings may show "optional constructions" to accommodate different vendor tooling or facilities constraints, but part numbers are unrelated to vendors.
Logged

'69 Z/28
Fathom Green
CRG
firstgenaddict
Hero Member
*****
Posts: 1276



View Profile WWW
« Reply #26 on: February 17, 2013, 11:50:23 AM »

3939728 GOLD
xxxxx07  GREEN
xx22302  AU

Is what is molded into the rubber -

This is the original passenger side motor mount for the 51 k mile Norwood 10D Early Z I have which was taken off the road in 1973.





Logged

James
Collectin' Camaro's since "Only Rednecks drove them"
 
Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://picasaweb.google.com/112392262205377424364/1969_Z28_Restoration
rszmjt
Member
***
Posts: 133


View Profile
« Reply #27 on: February 17, 2013, 02:17:26 PM »

Heres the drivers side - Note the moulded in nut
Moulded in numbers-
3939727 Pink
3943218 Lime
3931892 Coral
Logged
rszmjt
Member
***
Posts: 133


View Profile
« Reply #28 on: February 17, 2013, 02:18:17 PM »

additonal view
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #29 on: February 17, 2013, 02:40:05 PM »

In the last photos posted, the 'nut' appears to be 'welded' rather than molded in.   Wouldn't a molded in nut be on the opposite side where all the rubber is located?    What is the purpose of all the rubber on the side of the mount?  the holes (for the large bolts) in that mount appear to be round, rather than oblong.   Correct?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #30 on: February 17, 2013, 02:45:09 PM »

I didn't even mention items 5 through 10 (UPC Z28, sheet A4), which were added to the AIM on 6-2-69 (?). I believe these were a stop gap measure before the locking mounts were available. In fact, item #5 is called a "STOP"! It's a LEFT HAND item only, so it kind of adds to the above chart. Note the P/N 3886466 shows A.R. (As Required), and the P/N 3939728 shows only 1 being used.

For service requirements, I believe the 3886466 (non-locking mount) was attached to the right side of the engine and the 3939728 (locking mount) was attached to the left side of the engine!

For production, I have a feeling (no proof) that locking mounts were never used on the 302, but a stop gap measure was applied at some point during the production run. My copy of the AIM shows the date, but the month is kind of light and I can't be sure it's a 6 (June). Does anyone have a better copy that shows the month?
Ed

Ed,
you wrote:  "For service requirements, I believe the 3886466 (non-locking mount) was attached to the right side of the engine and the 3939728 (locking mount) was attached to the left side of the engine!"   
Did you mean in the subsequent year service manuals?  or ??   Why do you believe that?
.. also, from the latest photos posted of a supposed-original 3939728 mount, it doesn't appear to be 'locking'.   Was that a typo in your post?  or am I missing seeing something in those photos?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
rszmjt
Member
***
Posts: 133


View Profile
« Reply #31 on: February 17, 2013, 03:02:59 PM »

In the last photos posted, the 'nut' appears to be 'welded' rather than molded in.   Wouldn't a molded in nut be on the opposite side where all the rubber is located?    What is the purpose of all the rubber on the side of the mount?  the holes (for the large bolts) in that mount appear to be round, rather than oblong.   Correct?

The nut is not welded but notched into the mount, the shape of the hex part of the nut but smaller, this is the drivers side mount, the bolt goes in from the back, and Yes the holes are round in both mounts, the frame brackets have 1 bracket that is oblonged. I also have the same passenger side mount that James Posted, and the bolt goes rear to front also.
Logged
rszmjt
Member
***
Posts: 133


View Profile
« Reply #32 on: February 17, 2013, 03:06:23 PM »

.. also, from the latest photos posted of a supposed-original 3939728 mount, it doesn't appear to be 'locking'.   Was that a typo in your post?  or am I missing seeing something in those photos?

It is not "supposed-original", it IS a real "ORIGINAL" Production line installed Z28 Drivers side Mount.
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #33 on: February 17, 2013, 03:20:39 PM »

Sorry if I offended you; I wasn't doubting what you said, but simply noting that I haven't seen any GM documentation confirming the part numbers.   Is the mount 'locking'?  it didn't appear to be....  but it did seem to have 3 layers of metal, with each pair of metal layers laminated to the next using rubber, which seems to make it very thick?   What is the purpose of the middle metal layer?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
Ed Bertrand
CRG Member
*****
Posts: 2333


View Profile
« Reply #34 on: February 17, 2013, 05:05:40 PM »

I believe the 3939728 was a early version of the locking mount. Not what we're used to seeing, but kind of a preliminary design.

Ed
Logged
rszmjt
Member
***
Posts: 133


View Profile
« Reply #35 on: February 17, 2013, 05:59:10 PM »

No Offence Taken., I was just clarifying. No the mount is not locking, but I do have the anti/lift/locking plate and through bolt/spacer etc. The Locking Plate is repro from Heartbeat, but the bolt and spacer are original, as are the 3 longer captive washer hold down bolts.
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #36 on: February 17, 2013, 10:08:50 PM »

thanks for the additional photos!   They show a very interesting motor mount design, and also a very complicated one.   I'm pretty sure I've never seen one quite like that, although I did participate in pulling some original engines from Z28's back around '71-'72..  but motor mounts did not get a lot of my attention back then either.. Smiley
PS.  Does the additional height of that mount cause you any other issues, such as the one I had using the '3962748 mount' which caused my header collector to come too close to the bottom of my floor?  Or do you think my problem likely stemmed from either the header fabrication/design, or the trans mount?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
firstgenaddict
Hero Member
*****
Posts: 1276



View Profile WWW
« Reply #37 on: February 17, 2013, 11:59:00 PM »

In the last photos posted, the 'nut' appears to be 'welded' rather than molded in.   Wouldn't a molded in nut be on the opposite side where all the rubber is located?    What is the purpose of all the rubber on the side of the mount?  the holes (for the large bolts) in that mount appear to be round, rather than oblong.   Correct?
The purpose of all the rubber is additional surface area for bonding so as to keep the mount together, remember these do not interlock.

The metal plate with the rectangular hole is the mid-production change used for the early locking system, used with the existing non-locking mount.
Few of these ever made it back onto a car if the engine came out-
Logged

James
Collectin' Camaro's since "Only Rednecks drove them"
 
Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://picasaweb.google.com/112392262205377424364/1969_Z28_Restoration
paceme
Member
***
Posts: 462


View Profile
« Reply #38 on: February 18, 2013, 11:08:51 PM »

Here is a pic of one found on my 9A of 69 Z.
Logged

Steve Shauger
Vintage Certification™ Program, Providing Recognition And Status To Unrestored Vehicles. Website www.vintagecertification.com
z28z11
Hero Member
*****
Posts: 657


View Profile
« Reply #39 on: February 18, 2013, 11:33:16 PM »

And mine, 01C X77. Sorry they are not as legible as Steve's, but the numbers corelate the same. All bolts are original as well. Man, I had forgotten that I put these away -

Regards,
Steve
Logged

1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #40 on: February 18, 2013, 11:35:09 PM »

Steve,  Were they still functional?  or were they broken apart?  if functional, why did you change them?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
z28z11
Hero Member
*****
Posts: 657


View Profile
« Reply #41 on: February 18, 2013, 11:38:50 PM »

Additional pic of the 466 mount -
Logged

1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
z28z11
Hero Member
*****
Posts: 657


View Profile
« Reply #42 on: February 18, 2013, 11:43:58 PM »

Gary,

Still functional - engine has been on a stand in the garage since 1980, as has the rest of the "garage car" - my new term for the hobby-on-hold for 33 years. Patiently waiting either for death or restoration - my death, or the car's restoration.

Regards,
Steve
Logged

1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #43 on: February 19, 2013, 09:10:52 AM »

Let's shoot for 'restoration', Steve!!  Smiley
PS.  Are you in Murfreesboro?  I'm just north of Huntsville;  we should try to get together sometime... compare notes!

Gary
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
paceme
Member
***
Posts: 462


View Profile
« Reply #44 on: February 19, 2013, 12:21:50 PM »

The left side mount was interlocking part# 3962748 DK Green.
Logged

Steve Shauger
Vintage Certification™ Program, Providing Recognition And Status To Unrestored Vehicles. Website www.vintagecertification.com
firstgenaddict
Hero Member
*****
Posts: 1276



View Profile WWW
« Reply #45 on: February 19, 2013, 12:47:10 PM »

Shaugs my left side mount was the same as yours the interlocking model.
Logged

James
Collectin' Camaro's since "Only Rednecks drove them"
 
Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://picasaweb.google.com/112392262205377424364/1969_Z28_Restoration
z28z11
Hero Member
*****
Posts: 657


View Profile
« Reply #46 on: February 19, 2013, 10:13:30 PM »

PS.  Are you in Murfreesboro?  I'm just north of Huntsville;  we should try to get together sometime... compare notes!

Gary,

North and east of Murfboro about 30 miles - shame our local Camaro club went away; we used to have some great outings and meetings, local drive-ins and events. Maybe we'll get the chance to meet at one of the local shows -

Keep the posts coming - it really is goading me into working on the projects.

Regards,
Steve
Logged

1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #47 on: February 22, 2013, 03:38:17 PM »

The Anchor PN (2283) listed for the '69 big block 396 was ordered last week on the suggestion of Tmodel66, and received today.   
This part seems to be a great 'duplicate' of the GM 3962740/2748 PN, an interlocking design, minus the GM pn's on the side.   Which is what was on my car originally, and which I believed were too tall, causing my new headers to come too close to the floor underneath.  Sad
Now I've got  3 possible pairs of mounts, and unsure of which ones to use...   The Anchor 2283, which *match* the GM 3962740/2748 mounts, both of which are interlocking, and the GM 3886466 mounts (non interlocking).   Any suggestions?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
1968 Z28
Member
***
Posts: 446


View Profile Email
« Reply #48 on: February 22, 2013, 04:14:39 PM »

Don't know if this helps but.....just happened to look at Lucas Restorations gallery of restorations last night and ran across these photos of  a 1969 Z28.  These photos included are of the motor mounts and stands that were removed.

 

 

 

 

 

 
Logged

Jerry G.

Z28-1968-07C-Norwood
Ermine White, Red Std. Interior
2nd. Owner, 38,000 miles
tmodel66
Hero Member
*****
Posts: 1212


View Profile Email
« Reply #49 on: February 22, 2013, 06:48:37 PM »

The Anchor PN (2283) listed for the '69 big block 396 was ordered last week on the suggestion of Tmodel66, and received today.   
This part seems to be a great 'duplicate' of the GM 3962740/2748 PN, an interlocking design, minus the GM pn's on the side.   Which is what was on my car originally, and which I believed were too tall, causing my new headers to come too close to the floor underneath.  Sad
Now I've got  3 possible pairs of mounts, and unsure of which ones to use...   The Anchor 2283, which *match* the GM 3962740/2748 mounts, both of which are interlocking, and the GM 3886466 mounts (non interlocking).   Any suggestions?

Dang Gary I hate that. They worked for me and I might add it was after I searched and bought from just about every vendor in town. I don't know !!
Logged

Daniel  
'69 SS 350/4 speed  Fathom Green--POP
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #50 on: February 22, 2013, 10:55:47 PM »

The Anchor PN (2283) listed for the '69 big block 396 was ordered last week on the suggestion of Tmodel66, and received today.   
This part seems to be a great 'duplicate' of the GM 3962740/2748 PN, an interlocking design, minus the GM pn's on the side.   Which is what was on my car originally, and which I believed were too tall, causing my new headers to come too close to the floor underneath.  Sad
Now I've got  3 possible pairs of mounts, and unsure of which ones to use...   The Anchor 2283, which *match* the GM 3962740/2748 mounts, both of which are interlocking, and the GM 3886466 mounts (non interlocking).   Any suggestions?

Dang Gary I hate that. They worked for me and I might add it was after I searched and bought from just about every vendor in town. I don't know !!
Well.. maybe that height is correct, and something else is not quite right on my car making the headers hit.  The headers are 'new' so they may not be *right*, or perhaps the rear trans mount is too tall?  Does anyone have a measure for that?  Smiley
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #51 on: February 22, 2013, 11:02:37 PM »

the mount photos posted by 1968 Z28 (from Lucas Restorations) seem to match at least some of the ones that were said to be original, with one interlocking mount (2748?), and one non-interlocking (GM 3939728?).   Paceme and first gen addict both said their cars had the interlocking mount on the LHS, and the non-interlocking one on the right...  that seems to be what is pictured in the Lucas Restoration photos.
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
tmodel66
Hero Member
*****
Posts: 1212


View Profile Email
« Reply #52 on: February 23, 2013, 09:10:21 AM »

Gary after re-reading your post I believe your problem is the header. You have changed nothing except the header so it has to be. My reasoning is you said the Anchor are like your originals so your originals were working before the headers.  Correct? 
Logged

Daniel  
'69 SS 350/4 speed  Fathom Green--POP
rszmjt
Member
***
Posts: 133


View Profile
« Reply #53 on: February 23, 2013, 11:02:47 AM »

The Lucas restoration photos and others have had the drivers side mount changed sometime in the cars history, probably the engine mount recall program GM had back in 69 by GM dealers . Very common to see that type mount, the original type mounts I posted are very rare to see, especially the drivers side as it allways broke due to Engine Torque.
 When I ran the Corvette/Camaro shop we put lots of headers on and had to manipulate ( Bend) headers into proper postion lots of time. Put the car on a hoist and insert  long 2x4 trimed to fit into the collector and get someone to help you carefully pull down on the 2x4 gradually until you have the clearnce needed. You would be surprised how easily they will move. The trick is to gradually pull so as not to kink tubes or break welds. Done it lots, it works.
Logged
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #54 on: February 23, 2013, 12:15:53 PM »

Tmodel66 posted: 
"Gary after re-reading your post I believe your problem is the header. You have changed nothing except the header so it has to be. My reasoning is you said the Anchor are like your originals so your originals were working before the headers.  Correct?"
....

Well.  the GM 3962748 mounts may have come from a '70 LT1 I had, rather than the '69 Z28.    those mounts are shown as 'original' for the '70 350 engines in the '70 P&A catalog.   I now suspect the problem is the headers, although I'm not perfectly confident about the mounts, since I don't have the original 302 mounts.  As many have said, Chevy used non-interlocking mounts from '55 thru '69? and they often broke apart due to engine torque.  I've changed out many over the years on various small block chevys I've owned when the mounts were in 'two parts' when removed. Smiley   Seems chevy tried many solutions to the 'engine torque' issue before they finally addressed it..  ie. the 'tie down' mod/recall, and I suppose finally the interlocking mount.  I still need to decide which of the mounts I have is 'closest' or 'most acceptable in original unrestored judging' or survivor classes before I put my engine back in.
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #55 on: February 23, 2013, 12:24:19 PM »

The Lucas restoration photos and others have had the drivers side mount changed sometime in the cars history, probably the engine mount recall program GM had back in 69 by GM dealers . Very common to see that type mount, the original type mounts I posted are very rare to see, especially the drivers side as it allways broke due to Engine Torque.
 When I ran the Corvette/Camaro shop we put lots of headers on and had to manipulate ( Bend) headers into proper postion lots of time. Put the car on a hoist and insert  long 2x4 trimed to fit into the collector and get someone to help you carefully pull down on the 2x4 gradually until you have the clearnce needed. You would be surprised how easily they will move. The trick is to gradually pull so as not to kink tubes or break welds. Done it lots, it works.
I appreciate your comment;  I've leaned on the header a bit when I installed them the first time, but was afraid of breaking apart welds with too much effort?   GIven your suggestion, I suppose I'll just use your 2x4 suggestion and 'lean harder' and see what happens..  Smiley
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
lynnbilodeau
Member
***
Posts: 264


View Profile Email
« Reply #56 on: February 24, 2013, 11:21:41 AM »

So... at some point in the model year, did the 3962748 (green stripe) make it to the assymbly line?

Guys with late cars, anyone have original mounts?

I have an old 3962748 and comparing it to the Anchor 2283, looks like Anchor may have been the supplier.  They are pretty darn close.
Logged
iceman
Newbie
*
Posts: 14


View Profile
« Reply #57 on: February 24, 2013, 06:07:41 PM »

   

   guys 
           i am confused now my left mount #3963700blk/3962748green/3972740gold  3974735gold nut and3980701
  i thought this was orig. but it looks like a spacer is needed.   help.
                                                                                                   tks iceman
Logged
lynnbilodeau
Member
***
Posts: 264


View Profile Email
« Reply #58 on: February 24, 2013, 10:13:25 PM »

I don't believe any spacer is needed.   It has all those numbers because the rubber mold was the same for each number, but the metal parts differed.  After assembled, they put a green stripe on the 748 mounts, etc. different color code for each mount.

If you have green paint, you don't need a spacer.
Logged
KurtS
CRG Coordinator
*****
Posts: 3327


View Profile Email
« Reply #59 on: February 25, 2013, 09:59:24 PM »

Can someone post the dimensions of some of these parts for reference?

Thanks!
Logged

Kurt S
CRG
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #60 on: February 26, 2013, 12:06:58 AM »

I've got several of these mounts and I will take some measurements to go with the photos tomorrow and post them.  
For tonight, I thought I'd share with you all what the Chevrolet Parts and Accessories catalog, 30A, effective October 1, 1970 has for group 0.027   MOUNTING ASSY. - MOUNTING UNIT, Engine (also see group 4.081).   This shows what Chevy was selling across the counter and using in their service department less than a year after the '69 Camaro production stopped.  This catalog covers 62-70 Passenger cars, Chevelles, and Novas, and '67-70 Camaros.
What is interesting to me was that the original type mount posted in photos earlier by a couple of folks with the thick rubber at one end of the thru bolt to hold the engne mounting to the frame stand, seems to have been available in 'mirror' images for the left and right side...?   (Types B and D in the illustrations).
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #61 on: February 26, 2013, 06:02:51 PM »

I have original 3886466 mounts, as well as a pair of original '#3963700blk/3962748green/3972740gold  3974735gold nut and3980701' *(the one with all the PN's molded on the side of the rubber); mine had no paint left, so I'm unsure what pn it was sold as but I'm going to call it 3962748 to be consistent with what I called it in the earlier posts.   I also have just purchased 2 Anchor 2283 parts; they are identical in appearance and all measures to the 3962748 parts.

                                                                           GM 3886466               GM 3962748/Anchor 2283                       *Anchor 2267*             

A.  WIDTH = distance between the fwd                                2-1/2 "                                2-1/2" (-)                                            3"
and aft 'pin hole' (which straddles the frame stand)

B.  THICKNESS =Distance from center                                  1-5/8"                                    2"                                                   1-1/2"
of Pin hole to the block surface (back of mount)

C.  OFFSET  =  distance in plane of block                               1-1/2 "                                1-1/2 "                                              1-1/2 "
surface from the top row of holes in the mount
to the block, and the 'pin hole'  for the engine
retaining bolt.

*   I'm not certain these Anchor mounts are 2267, as I've tossed the boxes and they aren't labeled, but they are what the local auto parts store sold me
for 'small block' mounts (and 2267 is what Anchor shows as 'correct' for small block Chevy V8 - but they aren't correct for the 302/Z28 engine.

**   The width of the frame stands as measure on my car are ~ 2-3/8" ...

***  The Anchor 2283 appears identical to the GM 3962748 part, with exception of the molded PN's on the 2748...
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
firstgenaddict
Hero Member
*****
Posts: 1276



View Profile WWW
« Reply #62 on: February 26, 2013, 06:48:45 PM »

I knew this had been discussed regarding the BB's however the http://www.camaros.org/forum/index.php?topic=4961.0 went to the L48- Z28 mount as well and I knew Shaugs had a 14k mile 04C ss 350, of which I had requested pics, low and behold...
So yes no interlocking or adapter or misc parts until late may june.








 
Logged

James
Collectin' Camaro's since "Only Rednecks drove them"
 
Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://picasaweb.google.com/112392262205377424364/1969_Z28_Restoration
69Z28-RS
Hero Member
*****
Posts: 2535


owner since '76


View Profile Email
« Reply #63 on: February 27, 2013, 12:49:04 AM »

FirstGen..  Thanks for that older reference; it was helpful reading more background.   From all of this, I've gotten the idea that there were one or more changes in motor mount PN and/or configuration thru the '69 production year, so we should try to ascertain when the changes were (I think JohnZ had a post in the thread you refefrenced which identified May, June and maybe August of 69 for changes), and what parts were used when.   The change to the '70 motor mount may indeed have been before the actual '69 Camaro production ceased, so that is still an open question in my mind.

I think the (3" wide) Anchor motor mount that the parts store sold me may have been for the big block; Are the big block frame stands wider (3"?) as opposed to the small block frame stands 2-3/8 to 2.5" width?
Logged

Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
Dave69x33
Member
***
Posts: 346



View Profile Email
« Reply #64 on: June 07, 2013, 10:49:22 AM »

I ran across this discussion and referred back to my Jerry MacNeish fact books.  I have edition #1 and edition #4.  The motor mount part number was corrected since edition #1 from 3990519 to 3990918. Sorry for the confusion.

I dug up the 35 mm pictures I took of the components during my restoration (I restored my '69Z from 1995 - 2000 and did not have a digital camera back then).  I took digital pictures of my printed 35 mm pictures of the engine frame mounts 3945507 and 5508.  The part numbers are stamped in to the mounts and best seen after the mounts were clean from sand blasting.  I purchased the newer locking style mount mounts from Rick's 1st Generation back when Rick George owned and operated the store. The motor mounts fit well with no problems.
Logged
69Z28
Hero Member
*****
Posts: 889


69 X33D80 Z28


View Profile
« Reply #65 on: June 07, 2013, 01:37:28 PM »

Just looking at this post and was curious as to the amount of importance given to the old motor mounts. From a safety standpoint they are worthless correct or no? Were interlocking used at all in the production year? Are owners really using the oem mounts?
Logged

GaryC

'UNRESTORED' 1969 Cortez Silver X33D80 Z28
Dave69x33
Member
***
Posts: 346



View Profile Email
« Reply #66 on: June 07, 2013, 03:46:35 PM »

Gary,

Good question and a good point about motor mount safety.  I drive my car and occasionally really run thru the gears...you know...to keep the carbon cleared out!!!  I used new locking style motor mounts and will take a hit on show points in necessary.  This will only matter if/when I take my car back to a national Camaro event where I could get it judged again.  PS: My car scored 973/1000 or Gold at the Camaro Nationals back in 2000, and no issues were raised regarding the motor mounts during judging at that time.

If I had a very rare, numbers matching "museum piece" and aiming for a 1000 point show car that was only unloaded from a trailer and driven to a show spot, then I would make every attempt to find NOS, very clean original, or very accurate reproduction non-locking motor mounts.  Remember, the rubber in NOS or clean original motor mounts will have deteriorated and may not be safe for driving the car frequently.

Just my opinion on this.  I respect all Camaro owners for what they use their cars for.  But if we intend to drive them, and drive them hard, please think safety...and don't put any extra "bulges" in your beautifully finished hood!

Dave
Logged
69Z28
Hero Member
*****
Posts: 889


69 X33D80 Z28


View Profile
« Reply #67 on: June 07, 2013, 04:54:16 PM »

I don't even think I would consider non locking motor mounts at all on anything. When I first got my license in Atlanta, we had a brand new 69 Fathom Green Impala 350, Black interior, black vinyl top, nice car. First time my pops let me drive it by myself I stomped the pedal to the floor and the car made all kinds of noise and kept right on rollin down the road with out my foot on the pedal. Scared the crap out of me. First thing I did was put it in neutral and shut it off. Needless to say, I put the key switch in the lock position and realized I couldn't STEER...scared the crap out of me...again. I kept my composure and reached up and unlock the wheel all the time I had the brake pedal on the floor with both feet. Luckily I was in an empty parking lot, but if I was on the street my first time out with my new Georgia license, I could have made a big mess because Piedmont Road is 3 lanes on both sides and was always loaded with cars.


Never forgot that experience ever. I still like to stomp the pedal to the floor, so going thru the gears to clear out the carbon is something I understand and feel safe doing when there isn't any other cars around me. Safety first. Get those locking motor mounts.
Logged

GaryC

'UNRESTORED' 1969 Cortez Silver X33D80 Z28
Pages: 1 2 3 ... 5 [All] Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.127 seconds with 17 queries.