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102311 Posts in 12074 Topics by 4661 Members
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16  Camaro Research Group Discussion / Restoration / Re: A.I.R Smog Diverter valve on: June 23, 2014, 11:50:55 AM
Whatever the blow up was, it sure changed things.

Don went through a VERY drawn-out and difficult divorce, and had to start over from scratch.
17  Camaro Research Group Discussion / Originality / Re: Original Black Primer Underside of Body 69 Z/28's on: June 23, 2014, 11:45:29 AM
The black is a phosphate coating, any other colors, greys, blacks reds etc are primers sprayed on in the paint booths

Mark.   That's the first time I've heard phosphate mentioned for that..  Can you elaborate?   was the entire body subjected to a phosphating process?  or just some panels (like the floor) prior to assembly of the panels into the body? or?    Any details you can provide based on fact, or conjecture based on evidences would be greatly appreciated.

The phosphate systems (both of them - Fisher's and Chevrolet's) are covered in some detail in the "First Generation Camaro Assembly Process" paper on this site, at:

Here's an excerpt - go to the paper to read the details:

<<Fisher Body - Paint Shop Operations
The Paint Shop is broken down into phosphate, prime, sealing, and color departments; the body was suspended from an overhead conveyor with hooks at the firewall and at the ends of the rear frame rails through the phosphate system, and was transferred to a steel carrying truck before the prime system that carried it through the rest of the Paint Shop and through the Trim Shop.
Phosphate System: The raw body shell passed through a seven-stage phosphate system, where it went through a series of enclosed high-pressure hot spray stages where it was washed to remove all the oils and debris from stamping, welding, brazing, soldering, and grinding operations, then the body was coated with a hot iron phosphate solution which "etched" the metal and provided "teeth" for paint adhesion. The final stage was a de-ionized hot water rinse and blow-off, followed by a drying oven on the way to the prime booth.>>
18  Camaro Research Group Discussion / General Discussion / Re: Decoding firestone wide ovals on: June 23, 2014, 11:30:27 AM
Looked but can't find the referance.I believe they are 1972 can anyone confirm.thanks

The F-70-15 is CYU2  F216152

The F-60-15 is CYU2  F317212

Yup - 15th and 21st week.
19  Camaro Research Group Discussion / General Discussion / Re: Any Chicago area members heard of Zepelak Chevrolet Inc. in Elmhurst on: June 23, 2014, 11:17:16 AM
Per a friend who used to live in that area years ago, Zepelak Chevrolet was in Elmhurst until around '66 or '67, maybe a bit later, then changed to Celozzi-Ettleson Chevrolet; pretty sure it's gone now.
20  Camaro Research Group Discussion / Decoding/Numbers / Re: Water Pumps 3782608 and 3782609 casting dates?? on: June 20, 2014, 02:40:17 PM
So V1207MU would use ton 308 with date code maybe around L?6
? . Sound about right john?

That's a Flint engine, so it needs a Saginaw-cast water pump, late November to very early December.
21  Camaro Research Group Discussion / Decoding/Numbers / Re: Water Pumps 3782608 and 3782609 casting dates?? on: June 19, 2014, 11:27:59 AM
My question is about which is correct and is there a preference as to sag or ton as well as date codes?

For Z/28's, they have to be Saginaw castings; for everything else, the block and water pump have to be from the same foundry source (the engine plants machined/manufactured the water pumps from raw castings).
22  Camaro Research Group Discussion / Restoration / Re: A.I.R Smog Diverter valve on: June 17, 2014, 09:21:30 AM

Contact Bill Hodel @ 330-833-0871.

Yup - Bill Hodel is "da man" for A.I.R. systems and components.  :-)
23  Camaro Research Group Discussion / Restoration / Re: Restoration help on: June 16, 2014, 11:06:56 AM

So I have a question, did all SS cars come with a front and rear spoiler?

Nope. Spoilers were an option (RPO D80).
24  Camaro Research Group Discussion / Originality / Re: 67 N33 Tilt Column 7803779 on: June 14, 2014, 09:53:02 AM
Do not understand what 67 AIM N33 A1 revision 9 is implying (usage revised).

Prior to the item #9 revision, the usage description on the originally-released sheet for that part number was different (and incorrect), and the revision corrected it.
25  Camaro Research Group Discussion / General Discussion / Re: What's it worth, untouched Cortez silver 69 RS Z on: June 13, 2014, 10:25:07 AM
The Z/28 emblem would override the R/S emblem. Chevy wouldn't put two emblems on the car. What would they do on the rear body panel?
We CRGers know how it is supposed to be, but what about the guys building them back then. This may have been the first Z or, at least, Z/RS built in 69! Maybe there was some confusion or no clarity at the start of production and it got both emblems. Is that possible? Who knows if that is even the original grille. I am just throwing out an idea that perhaps early in production, some anomalies may have occured until assemblies were clarified by supervision. I could see how it could be possible to leave the plant with both emblems myself. Others have a thought? JohnZ? Ed?

Anything is possible, but two emblems on the grille would stick out like a sore thumb and probably wouldn't make it out of the plant. There were only two possible rear panel emblems - the Bowtie, and the Z/28, both of which had the same pre-pierced pin/hole pattern.
26  Camaro Research Group Discussion / Maintenance / Re: intake on: June 11, 2014, 09:50:12 AM
Great article John.  I have Teflon sealant I used for the head bolts, is that OK?

There are a number of products that work on the head bolts - I'm old-school, and prefer non-hardening Permatex #2. Others prefer ARP thread sealant, etc.
27  Camaro Research Group Discussion / Originality / Re: Need help/picture to correct my 69 Z28 write up from Jerry MacNeish. on: June 11, 2014, 09:38:09 AM
How did that process differ at Van Nuys John?

Van Nuys had converted from Fisher/Chevrolet to GMAD the previous year, and had consolidated the Paint Shop (eliminated the Chevy paint shop); the front sheet metal previously painted separately by Chevrolet was now mounted on conveyor bucks about five feet ahead of the body shell. The black rocker and fender areas were masked and sprayed at the same time, but it was many hours later before the fender was installed on the body.
28  Camaro Research Group Discussion / General Discussion / Re: Stripe delete on: June 11, 2014, 09:27:31 AM
So in making sure I have taken all this in and understood properly....the only thing common from start to finish on one car that each dept see is the broadcast sheet. Correct? Fisher works off this as well as GM? So to really know for sure
About deletes such as nose stripes it would be on the broadcast sheet.
Say a z stripe delete might show up on cowl because that would effect what fisher had to do, but nose delete may not because it doesn't concern them?

The Broadcast copy was only seen by Chevrolet - it didn't exist until after the body was delivered by Fisher Body; Fisher had their own internal version, called the UOIT.

Nose stripes didn't affect Fisher, so they weren't on the cowl tag; Z/28 stripes DID affect Fisher.
29  Camaro Research Group Discussion / Maintenance / Re: intake on: June 10, 2014, 10:23:54 AM
You may find this article useful:
30  Camaro Research Group Discussion / Originality / Re: Need help/picture to correct my 69 Z28 write up from Jerry MacNeish. on: June 10, 2014, 10:10:49 AM
Remember that the rocker panel was sprayed black in the Fisher Body main Paint Shop, when the body was just a shell, prior to entering the Fisher Body Trim Shop. The matching black on the bottom of the front fender was sprayed in the Chevrolet front sheet metal Paint Shop on their side of the plant, hours before the fender was installed on the car.
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