CRG Discussion Forum
Welcome, Guest. Please login or register.
Did you miss your activation email?
July 26, 2014, 06:16:13 AM

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.
102383 Posts in 12080 Topics by 4664 Members
Latest Member: jjonesls1
* Home Help Search Login Register
  Show Posts
Pages: 1 ... 4 5 [6] 7 8
76  Camaro Research Group Discussion / Originality / Re: Carb Stud Length - '69 Cowl Air Cleaner on: March 11, 2013, 06:30:09 PM
Mike, thanks for the posting, that's excellent information and the photos help a great deal!  For completeness of topic and future reference, do you have, and would you post the measurements for the non-cowl stud as well.

 

1.505 Overall Length,machined raised portion in middle .265 long X .312 wide, threaded length .620 both ends
77  Camaro Research Group Discussion / Originality / Re: Carb Stud Length - '69 Cowl Air Cleaner on: March 11, 2013, 02:06:09 PM
Lloyd, your stud is a little too long. IMO. I can only measure mine from the flange up, but it is 1.500 from the top of the flange to the top of the stud. Mine appears to have a smaller unthreaded shank area above the flange. Original cowl hood wingnuts are plain steel and have small thumb wings, BTW. I have also included the correct short stud and chrome wing nut for non cowl hood cars, as well as the current repo AMK chrome wingnut compared to a known GM original which appears flash plated much like GM chrome valve covers.. Notice the thumb wings on the AMK wingnut are much bigger and extend to the inside more. I have heard that 67 427/435HP Corvette studs are the same, but I just measured 2 known originals, 1 a 6,000 Mile survivour and they are both 1.422 and 1.415 from top of flange to top of stud.
As far as I know mine is original, I have owned this RSZ28 since 1973.
78  Camaro Research Group Discussion / Originality / Re: Carb Stud Length - '69 Cowl Air Cleaner on: March 11, 2013, 11:12:16 AM
I wonder if the wing nut on my original car is correct? Were all wing-nuts created equal?

No, original 6 cylinder wing nuts have a flat bottom, pretty sure I have a correct 1 for Lloyd
79  Camaro Research Group Discussion / Originality / Re: Carb Stud Length - '69 Cowl Air Cleaner on: March 10, 2013, 02:46:19 PM
In the AMK products catalog it shows the stud with part 3747933 as 1/4 20 x 1 5/8 OAL. This part number of the stud # 3747933 is listed in the cowl induction section of the AIM. This length of the stud appears to match the original engine photo of the # 3 ZL1 camaro in a book I have.

AMK studs are not correct, they are close but slightly shorter, I just got 1 for a Restoration I am doing on another 69Z, the original correct production line installed GM stud is over 2.25 and it looks goofy as it sticks through the wingnut quite a bit when the lid and filter is installed.
 I will take a picture of mine and repost Monday, my Z28 is at the shop.
80  Camaro Research Group Discussion / Originality / Re: Carb Stud Length - '69 Cowl Air Cleaner on: March 10, 2013, 09:38:08 AM
Lloyd,

The stud in the photo looks correct for a cowl hood car, however I think your wing nut is not the original, it looks to bulky in the wing thumb hold area. The wing nut should not be chrome, and the stud ( i think) is like a dull black phosphate. I had changed mine many years ago ( put a chrome lid and stud/nut off a non cowl hood car) and in going through my original kept parts for my car ( reinstalled), just came across it and the wing nut, ( as well as the lid) I will snap a picture Monday and repost it for you. 
81  Camaro Research Group Discussion / Originality / Re: RPO U17 - firewall hole size on: March 04, 2013, 03:37:28 PM
The Oil Line on a 02B Van Nuys Z28 I am restoring is just above the speedo cable retainer clip hole, and it is 1/2" diameter.
Does any one know the correct routing on the interior of the car? Does it go through the firewall mat, or between the Mat and firewall ? Also does it just loop over the heater box and slightly left of the defrost duct? or does it loop under the heater box? Car was pretty original before I took it apart, still has the GM tag on the gauge cluster, and it is ink stamped Jan 23/69  026?
 Does any one know if the low fuel warning lite socket plugs into the guage cluster and where? Thanks.
82  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 motor mounts 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.
83  Camaro Research Group Discussion / Restoration / Re: Vigilite Light Monitoring System Fiber Optic Cable on: February 21, 2013, 01:28:30 AM
Also Big Fat Buicks/Olds etc. I think Corvette Central or Paragon offer new cables for corvettes repo -

http://www.parts123.com/parts123/yb.dll?parta~dyndetail~Z5Z5Z50000050g~Z5Z5Z513357~P195.00~~~~S3PZ035IIL96512229835a~Z5Z5Z5~Z5Z5Z50000050G
84  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 motor mounts 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.
85  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 motor mounts 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.
86  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 motor mounts 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.
87  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 motor mounts on: February 17, 2013, 02:18:17 PM
additonal view
88  Camaro Research Group Discussion / Originality / Re: 1969 Z/28 motor mounts 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
89  Camaro Research Group Discussion / Originality / Re: Temp sensor on: February 12, 2013, 03:47:50 PM
Pretty sure it is Original, I have owned the car since 73
90  Camaro Research Group Discussion / Originality / Re: Temp sensor on: February 12, 2013, 03:46:14 PM
 Sender says AC-248 M...
Pages: 1 ... 4 5 [6] 7 8
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.078 seconds with 18 queries.