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107559 Posts in 12508 Topics by 4812 Members
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46  Camaro Research Group Discussion / Decoding/Numbers / Re: #82 on: October 10, 2014, 11:18:01 AM
While cleaning and repairing my 69, I have come across the #82 on several pieces.  The heater core box(pictured), the inside of the fan/ evap suitcase, on the bottom of the evap, back center of the gauge cluster, and on the air distribution duct. the one on the heater box is red the rest are yellow.
has anyone else seen this pattern? know what it was for? was there an RPO 82? or maybe the X82nd car on the line that day?

That's the final assembly sequence number for that car - assigned in the Chevrolet Body Bank and printed in the upper left box on the Body Broadcast sheet.
47  Camaro Research Group Discussion / Restoration / Re: Proper type of sealant or seal to use ??? on: October 07, 2014, 10:54:17 AM
I am looking for the proper sealant(s) to use in the following area so that water doesn't get where it is not supposed to.......

The bolts that attach the rear bumper brackets to the body. The AIM shows a sealant or cement on the bolts but I don't what it actually is.

The rear side marker light bezel studs where they pass through the quarter panel into the trunk....... The rear sidelights must have been installed at Fisher Body since the install is not shown in the AIM. I have the small gaskets that seal the plastic light housings to the body but it seems like the bezel studs will need something.

And basically anywhere else where a bolt or screw passes through the body where you don't want water to enter.

I have some 3M Strip Caulk. Would that be a good candidate? I haven't used it on anything yet. Can it be formed in a small enough portion to coat the bottom of a bolt head?

I am sure I can come up with something myself but I am trying to do it by the book.


3M "Strip-Calk" is essentially identical to the "dum-dum" sealer originally used on the fasteners you noted.
48  Camaro Research Group Discussion / Maintenance / Re: Running Hot? on: October 04, 2014, 09:15:56 AM
I finally got the AIR system inactivated.  Checked for a vacuum leak around the carb and couldn't find any.  Car seems to hold an idle now without slowly going down and dying.  One thing I have noticed since I have been doing a lot of work with the air cleaner off is that after the car has idled awhile, though still not anywhere near hot, after I shut the engine off a vapor or mist almost as thick as smoke comes out of the carb throat.  The carb is still cold to the touch when this occurs.  What is causing this? 

Crankcase vapors - if you had the air cleaner and PCV hoses connected, you wouldn't see it.
49  Camaro Research Group Discussion / General Discussion / Re: 69 Z/28 X77 garage/barn find on: October 04, 2014, 08:58:00 AM
The original Brake Booster Hose Bracket
Darrell, do you see any GM part number like this stamped on your brake booster hose? I just noticed this one on mine.  My car has never been restored, so if this hose is not the original it was a service replacment many years ago. Anyone know if it is the original or not?

That's not a part number - it's a GM Engineering specification number for rubber hose; describes type of rubber, reinforcing layers, burst/collapse limits, test procedures, etc. Reference to that spec (GM 6188-M) will be found on the booster hose part drawing.
50  Camaro Research Group Discussion / Originality / Re: 1100837 alternator on: September 28, 2014, 09:15:19 AM
Being that my engine was cast on the 22nd and assembled on the 25th of August, wouldn't it be a stretch that the H-25th alternator could make it to my engine that fast?

No. The alternator was installed at Norwood, not at the engine plant.
51  Camaro Research Group Discussion / Restoration / Re: Bolt for front wheel fender mouldings on: September 26, 2014, 11:31:02 AM

I am searching for the bolts that hold the front wheel openings mouldings for my 1969 Camaro. I have the small screws for the back mouldings but the front seem to need bolts. I read somewhere the bolt is Part Number 3853846, AMK products page 103 under GM horns (same bolt that holds the horns onto hood latch).

Is this true or where can I get these bolts? I want the most original possible.



1969 SS Convertible

They use the existing fender outer-to-fender inner bolts - no "extra" or "special" bolts required.
52  Camaro Research Group Discussion / Restoration / Re: AM Radio on: September 26, 2014, 11:21:31 AM
Does the radio have some kind of mounting bracket on the back side that I need as well? Seems like it would have to?

See your Assembly Manual, section U63, sheet A3, item #1, 2 and 3 for the bracket and attaching parts.
53  Model Specific Discussions / Trans-Am Camaros / Re: JL8 / J56 4-wheel disc racing brakes on: September 26, 2014, 10:38:58 AM
I sent John an message about this so we'll see what he has to say. It's a bit funny/ironic that the 461X cylinder heads are more desirable than those without the X and the reverse is true with these caliper castings but I think the 461X heads have better ports (if I remember correctly).

There is some evidence to suggest that an "X" added to a GM casting number indicates the first production pour with a minor pattern or process change at the foundry to let the customer (who machined the casting) know that a minor change has been incorporated in the casting, but I haven't been able to document it. Functionally, it's irrelevant and shouldn't affect the casting's price.

The 461X cylinder head is a different issue - those "X" heads had 10cc larger intake ports than the "non-X" 461's, and were prized by racers in classes where they had to run unmodified (no grinding, no porting) stock heads.
54  Camaro Research Group Discussion / Originality / Re: Sway bar bracket change on: September 25, 2014, 10:48:53 AM
While having difficulty trying to find replacement bushings for my sway bar, I often wondered when the change occurred. Any ideas?

My untouched 02D Norwood '69 (built 2/27) has the "fingers" sway bar bracket.
55  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 25, 2014, 10:34:26 AM

I see coolant in the lifter valley in the first photo - did you drain coolant before removing the intake manifold?
56  Camaro Research Group Discussion / Restoration / Re: Accurate taper mono springs? on: September 23, 2014, 11:30:03 AM
This URL shows their hot process, it's pricey though

I spent two days with Mike and his crew at Eaton-Detroit Spring when I wrote this feature article on how they manufacture and/or re-arch leaf springs when I was the Technical Editor of "Corvette Enthusiast" magazine; it takes you through their process from start to finish.  :-)
57  Camaro Research Group Discussion / Originality / Re: Standard Steel Wheel Color on: September 22, 2014, 01:34:23 PM
All wheels were received in oiled raw steel, by the thousands, in rail cars. They were cleaned, phosphated, dip-primed black, baked, then the outer face of the wheel was sprayed with either black or body-color wheel enamel and baked again.
The N66's did they go through the process again for the second color?

I believe the short-lived N66 wheels were an exception; there was no way to paint the second color in the plant, so they were received painted. The wheel paint conveyor was a single, long continuous loop of overhead conveyor that went from the wheel receiving area downstairs adjacent to the rail dock to the Bonderite/phosphate system and bake oven upstairs to the flow-coat black primer system and bake oven to the topcoat spray booth to the bake oven and back downstairs to the wheel & tire mounting area for drop-off, and then to the wheel receiving/loading area to pick up more wheels for another cycle.
58  Camaro Research Group Discussion / Originality / Re: Door stricker on: September 22, 2014, 01:04:40 PM

What was the color of the door stricker on a 1969 Camaro? Was it the simple Zinc steel color or painted? I saw NOS black ones on ebay....

Mines have to be changed because the sleeve is loose.


The striker was received zinc-plated, then it got body color (it was installed in the Body Shop, prior to Paint).
59  Camaro Research Group Discussion / General Discussion / Re: 67 AIM on: September 17, 2014, 10:05:03 AM
Here's the original dipstick from my untouched 02D '69 Z/28.
60  Camaro Research Group Discussion / General Discussion / Re: My New '68 Camaro Z/28 Butternut Yellow on: September 17, 2014, 10:01:42 AM
Plugs AC43

43's are WAY too cold for normal street use, and will result in some degree of fouling; use 45's (or some other brand that crosses to the 45 heat range).
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