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103694 Posts in 12182 Topics by 4697 Members
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1756  Camaro Research Group Discussion / Originality / Heater core and resealing inside heater assy on: January 26, 2013, 01:33:59 PM
The heater core in my car was tested *good* by the radiator shop, and I've cleaned up the heater/def box for re-installation and I've a few questions for those of you who have done this before.
1) there was a 'thick material'? on the heater door (behind the heater core) which either served to insulate? or to dampen noise ?from the blower.  Of course this material was deteriorated and came off during the cleaning operation.  Now for re-installation, I'm unsure if I need anything to replace it, and if so, what is the preferred material for doing so ?
2)  The heater core was installed inside the box using a 'weatherstrip' like material to seal the core against the heater box.  Again, this material came off/out when I cleaned it, and again I've a question of what I should use to reseal that area?

The external (firewall) blower motor housing seemed to be sealed to the firewall using gray 3M rope seal, so I plan to put that back to augment what was left there.

PS. I also found a date code on the Heater Core (Harrison 69 J' )     Does anyone know what month J is for heater cores?   is it September?   My car is an 09C..

Any other suggestions from you guys before I do this task?
1757  Camaro Research Group Discussion / General Discussion / Re: mecum Kissimmee on: January 26, 2013, 01:06:02 AM
I watched a bit this evening...    some nice Corvettes brought some big $$ without a lot of the hype that you see from the BJ people..
1758  Camaro Research Group Discussion / General Discussion / Re: Zl-2 Cowl Hood Production on: January 26, 2013, 01:04:11 AM
Do a search.  Kurt has collected a fairly large data base with this information available to us in the email...   maybe search on hood date code?
1759  Camaro Research Group Discussion / Mild Modifications / Re: Speedometer gearing... on: January 25, 2013, 01:51:01 PM
speaking of FI engine swaps.. Smiley..   I recall going into my local garage back in the '60's.. and seeing rows of early Corvette FI units sitting up on a high shelf.   when I asked, the garage owner said they were swapped off Corvettes for carburetors at request of the owners...  They were all for sale for $75 each..  with no takers.. Smiley   Much later on I learned that they only required someone who understood the units function, and how to set them up to make them run *right* and get great mileage too.. Smiley
1760  Camaro Research Group Discussion / Originality / Re: 69 Z28 Radiator Re-coring ? on: January 25, 2013, 09:44:29 AM
Gary,

Will do. I'll try to get it tomorrow, BTW, look at the link Ed sent me for a good look at the tags and the tabs that hold them on - good pictures (great info !).

Regards,
Steve

Thanks Steve,   even though I'd verified my radiator *(UH) long ago from the site, in going there today, I noticed some additional information on specs for the radiator and core, and also additional data on fans and clutches.  
Note to Kurt:   The update did not include the *date codes* on both the fan (914087  H69, and 3947772) and fan clutch (EATON CV, and H21J) that my car has.   My car is a 09C production, and most of the parts on the car are dated 'H' for August).   I believe these fan and clutch H codes also represent August '69 in this instance.
1761  Camaro Research Group Discussion / Originality / Re: 69 Z28 Radiator Re-coring ? on: January 25, 2013, 12:37:36 AM
Gary,

Tags are easily removed, with a little care. They grip around the edge of the tank, and have a couple of "spurs" that lock them on. If you're careful, they'll usually come right off without damage. Be careful of weakened (rusted) metal - it's pretty thin steel.

I have not had any of my radiators rebuilt as yet, but a fellow Z owner near me had his rebuilt by a shop in Nashville. Swears it's dead nuts, and knowing this owner very well, I'd take his word for it. His Z has been in his family since the early 70's, and he is very particular about it. I suppose it's too late to get the source for you, but according to him, the 3 row core, exact duplicate, is available. I intend on getting mine done at the same source he used (whenI can afford it).

Regards,
Steve

Thanks Steve,

If you get the name of the ship or the brand/mfg of the core..  please let me know..  Smiley
Gary
1762  Camaro Research Group Discussion / Originality / Re: 1969 spare wheel on: January 24, 2013, 11:27:07 PM
William,

My understanding is that any '69 Camaros ordered with the 4-wheel disk brakes also included the 15" rallye wheel (or it was a mandatory associated option?)  I assume this would even be true with the one 6-cyl Camaro that was supposedly ordered with the 4-wh disks?

E70 x 14 tires were never available as original equipment on a 1969 Camaro.

The standard size [non-SS or Z/28] was E78 x 14; F70 x 14 optional.

SS cars had F70 x 14 as the standard size; several varieties were optional.

Z/28s and COPOs also equipped with 9737 used E70 x 15. There were no 15" tire options.

JL8 included 15" wheels when not ordered with Z/28. Only one such car is known to exist.
[/quote

William,  I'm not sure what you mean here...   only one 'non-Z28'?  or only one 6 cyl car?   
I've heard about the 6 cyl car either here or TC, and I have a friend with a '69 SS396 HT with factory JL8.
1763  Camaro Research Group Discussion / Originality / Re: 69 Z28 Radiator Re-coring ? on: January 24, 2013, 11:20:07 PM
I will call the radiator shop back tomorrow, and ask him to remove/save the tag.   he knows it's important to me but I didn't think about taking it off.   Is removing the tag and replacing it after the recoring, something I can easily do?  I've never seen one of these off before.

I will reuse the sidetanks and save/reuse the tag, but the core comes with the 'top' and bottom' braces.   The top brace has 'square' holes in it.   I asked him if the new core would duplicate that exactly and he wasn't sure; nor am I sure how one would 'drill' square holes if none are there in the new core... ?  Smiley

The original radiator is a 'three core', but when I asked the shop, they said the new one would be a three core, OR Equivalent 2 core (ie. larger holes?)...   that bothers me a bit.   Should it?   Is there a preferred source for radiator cores to ensure more exact duplication?

Gary
1764  Camaro Research Group Discussion / Originality / 69 Z28 Radiator Re-coring ? on: January 24, 2013, 12:22:48 PM
I just spoke with my radiator shop.   I'm told my heator core is GOOD, but the original '69 Z28 (UH) Radiator core is bad (at the header at the bottom).   I'm told he can replace that with an *identical* core for $300.   I just told him to proceed, but I feel I should inquire here to make sure I'm doing the right thing.  I definitely need to repair this original radiator.   Should I be asking the radiator shop any questions re anything?Huh  manufacturer, type, size, etc?
Thanks in advance for whatever suggestions you might make!
Gary
1765  Camaro Research Group Discussion / General Discussion / Re: Kelsey Hayes rims for 1969 on: January 24, 2013, 09:45:08 AM
Here's another data point to expand on your thoughts below:  I have a YH rim with K 1 9 5 20 YH on the outside at the valve stem hole, but on the inside it shows a '4' for the month.  (see photos):

I would theorize that the 'inner' stamping is done after K-H makes/tests the rim, and then when the center is welded in, and the finished wheel meets test specs, they stamp the completed code next to the valve stem.  In the case I show here, the rim is apparently made in April of 69, but the wheel isn't *finished* until May 20.. 3 weeks or more later (which seems long but.. there may have been reasons for that at times?).   Does anyone actually know and can confirm any of the above conjecture?
PS.  Oh, and my 09C car, came with all YH rims marked as 5-20... which would be nearly 4 months between.
 

K = Kelsey Hayes (manufacturer of the rim for GM-Chevrolet)
1 = plant at Romulus, Michigan (for GM-Chevrolet)
9 = 1969 (Year of Manufacture)

Now, as I am searching around for info, in prior years of 1969...
KH rims being manufactured for Chevrolet, in my image above,
the earlier rims only used a single J after the rim stamping of the size and width.
Example :  14 X 5 J
Does the single J denote anything towards how the rim fits the brake system?
Where as, in 1969 JJ stamping, does the JJ represent anything towards brake system fitment?

What is curious to me is if the early 1969 Z28 AD rims were stamped with JJ or J ?
I would assume the the YH rims were having the JJ satmping.

In my image above, you will notice the letter A below the 14 of the 14X7 JJ stampings.
I am going to guess that this denotes the month that it was made.
This image is from one of my YJ rims in a set from January 1969.
To add, there is also a letter in the wheel center that seems to denote the month of manufacture, K-1-9 A.
On this particular rim, the A is stamped just under the GM stamp on the wheel center.
I am going to assume that the outer band was manufatured in Jaunary, 1969 by looking at this.
I am going to assume that the wheel center was manufatured in Jaunary, 1969 as well.


I decided to go and look at some of my other rims.
K-1-8 trhru K-1-9 issue.
Some of the K-1-8 rims have the Letter code in the wheel center on another of one of the 5 landings of the rim where it it can be stamped.
One set, stamped for October, 1968 denotes a 10-X date.
These rims show a K-1-8 with a Letter J.
Counting out the months, J lands on the month of October.
Thoughts....
1766  Camaro Research Group Discussion / Originality / Re: 1969 spare wheel on: January 23, 2013, 10:51:01 PM
William,

My understanding is that any '69 Camaros ordered with the 4-wheel disk brakes also included the 15" rallye wheel (or it was a mandatory associated option?)  I assume this would even be true with the one 6-cyl Camaro that was supposedly ordered with the 4-wh disks?

E70 x 14 tires were never available as original equipment on a 1969 Camaro.

The standard size [non-SS or Z/28] was E78 x 14; F70 x 14 optional.

SS cars had F70 x 14 as the standard size; several varieties were optional.

Z/28s and COPOs also equipped with 9737 used E70 x 15. There were no 15" tire options.
1767  Camaro Research Group Discussion / General Discussion / Re: building a garage on: January 23, 2013, 05:22:26 PM
Bergy,
Thinking about your 'garage building' layout.. and I really like it.   Seems you have built it to have a one-car working space with a lift, separated from the clean 'storage garage' area.    and your storage area allows any one of up to 7 'pony cars' to be removed or put back without disturbing/moving any of the others.   I really like your approach; dirty area separate from clean; take out one car without moving others.. and basically garage 8 cars in a very nice 'envelope'.    I'm thinking of potentially duplicating your arrangement.  I'd love to have the dimensions of your building..  if you wouldn't mind sharing it?
Thanks,   Gary
1768  Camaro Research Group Discussion / Originality / Re: Early bird special. on: January 22, 2013, 02:31:34 PM
thanks.. Smiley ..  NOW I can see what you mean.. Smiley
so were the backing plates on Pontiac Firebirds left 'bare'.. to rust?  or ??
1769  Camaro Research Group Discussion / Decoding/Numbers / Re: 69' 302 CE numbers on: January 22, 2013, 02:29:26 PM
Thanks John...  for affirming my *memory*.. Smiley      on another auto board (Vettenet? or ?) several years ago, someone posted the original GM directive concerning the 'numbering/labeling' of replacement warranty blocks, and what you desribed is what I remembered it saying.. and tried to say myself earlier.. Smiley    somewhere, probably on an older computer disk, I saved that document.... but there's no telling how long long it would take me to find it..  IF that old computer still works..
1770  Camaro Research Group Discussion / Originality / Re: Early bird special. on: January 21, 2013, 05:18:27 PM
You can tell that from those photographs???
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