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109369 Posts in 12660 Topics by 4866 Members
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1  Camaro Research Group Discussion / General Discussion / Re: Horn Button Repair, R & R Tricks on: Today at 12:29:24 PM
A steering wheel puller is less than ten bucks at your local auto parts store.   Smiley
2  Camaro Research Group Discussion / General Discussion / Re: Classic Car Motor Oil on: Today at 12:21:01 PM
The ZDDP has been reduced in Rotella also. The zinc and phosphorus shortens the life of catalytic converters so the EPA is doing its job.

No, it hasn't. The CJ-4 API service rating on Rotella (and every other CJ-4-rated brand) will routinely test at 1100-1200 ppm of zinc/phos, which is more than adequate protection for any OEM valvetrain; if you have an aftermarket valvetrain with Gonzo valve springs and radical lobe flank accelerations, all bets are off and you'll need more specialized lubricants with more EP (Extreme Pressure) additives.

CJ-4 oils are not intended for use with catalytic converters - that's why "SM" (the current EPA-approved passenger car and light truck oil classification for spark-ignition engines) is listed SECOND on the API label logo.
3  Camaro Research Group Discussion / General Discussion / Re: Cosworth Vega on: Today at 12:02:51 PM
<< Thought I'd post THIS for JohnZ, rsr, and others.
Just listed... no price yet, not much detail...
Anyway Vega lovers enjoy! >>

That's an interesting car - beautifully restored, with a subtle addition of aftermarket A/C (note Sanden compressor); A/C was never available on the Cosworth-Vega. It will probably be priced well beyond reality, as the Cosworths appeal to a pretty narrow niche market.  Undecided
4  Camaro Research Group Discussion / General Discussion / Re: Rick & His Yenko at Americarna LIVE Car Show on: Today at 11:45:23 AM
<< John,
Can you post your other article, Vega Development and Production History, 1968-1975?

Thanks! >>

Sure - got lots of this stuff.  Smiley
5  Camaro Research Group Discussion / Originality / Re: 140 cam.........................how much vacuum ? on: January 23, 2015, 12:31:13 PM
The stock Z/28 cam (-346) will pull about 9"-10" Hg. at 900-1000 rpm; I'd expect the "140" off-road second design cam to pull about 2" less.
6  Camaro Research Group Discussion / Decoding/Numbers / Re: 5460346 Master Cylinder on: January 23, 2015, 12:25:38 PM
John was there any connection to D 1,2,3,4 in time frames from Ohio? Just curious about the number. Most want to tie it to date codes in some way.

Nope. It's not a date code - it's foundry pattern number identification.
7  Camaro Research Group Discussion / Decoding/Numbers / Re: Part Number Stamp or Sticker on Wiper Motor Assy on: January 23, 2015, 12:17:06 PM
John, looks like yours is stamped from Rochester NY, not Dayton OH; if you could confirm the assembly date code on the sticker, that'd be a solid data point, as your car is so original.

The sticker says "5045572  036 9 B F"  (that's February 5th, car was built February 27th).
8  Camaro Research Group Discussion / Originality / Re: 69 Bowtie question on: January 20, 2015, 11:35:05 AM
The separate retainer plate for my all-original 02D '69 Z/28 emblem has never been touched, and it was originally painted black primer.
9  Camaro Research Group Discussion / Decoding/Numbers / Re: MQ Block on: January 20, 2015, 11:27:31 AM
Is it possible for a TO405 MQ to have a E-10-6 casting?

No, it's not, unless the foundry service worker who made up the brass casting date tag for the pattern made a mistake; a block can't be machined and assembled before it's cast. I didn't see a photo of the casting date.
10  Camaro Research Group Discussion / Decoding/Numbers / Re: Part Number Stamp or Sticker on Wiper Motor Assy on: January 20, 2015, 11:13:21 AM
My all-original 02D non-RS '69 has the mylar sticker with the part number, and the motor is stamped Delco Products.
11  Camaro Research Group Discussion / Decoding/Numbers / Re: 5460346 Master Cylinder on: January 20, 2015, 11:08:00 AM
The "D 1" is the pattern number at the Defiance (Ohio) GM foundry - that foundry logo is to the left of the "D".
12  Camaro Research Group Discussion / Decoding/Numbers / Re: Motor vin stamp vs. transmission vin stamp on: January 16, 2015, 02:21:18 PM
So a 2 door could be followed by a station wagon? I can see once the basic body is welded up on the Fisher end where the rest of the process is mainly a matter of the correct parts coming from the various feeder lines. It's the beginning part where the various sheet metal parts were being lined up and welded that I find amazing, especially when two basically different bodies were one right behind the other. I guess the tooling mainly involved holding the parts to be welded, and there were locating holes/pins in the parts themselves? Or maybe the fixtures were universal, and had locating pins to work with every body to be built?

Most plants had a common underbody build truck in the Body Shop (except Lordstown, which had one for full-frame "B"-bodies and a different one for half-frame "F"-body Firebirds), and each different body style (2-door "F"-body coupe, convertible, 2-door "B"-body coupe, 2-door "B"-body 2-door hardtop, 4-door sedan, 4-door hardtop, and 4-door station wagon) had multiple left and right pairs of side frame gates to build up the body side and then assemble it to the underbody (which included the cowl). Assembly at 65 per hour was a VERY complex business, not for the faint of heart.
13  Camaro Research Group Discussion / Decoding/Numbers / Re: Motor vin stamp vs. transmission vin stamp on: January 16, 2015, 02:10:18 PM
John Z, Shouldn't the VIN on the engine pad match the VIN on the cowl tag?

There is no VIN on the cowl tag - only the body number; the VIN tag (visible through the windshield) is riveted to the upper instrument panel, and is unrelated to the body number.
14  Camaro Research Group Discussion / General Discussion / Re: Ron Pratte collection on: January 16, 2015, 01:59:35 PM
. Quite a few Corvettes now being described as having reproduction trim tags.

Which, in the Corvette world, will disqualify them instantly if they're presented for NCRS Flight Judging, and brand the car as "Counterfeit" in the NCRS judging database. Spotting bogus/reproduction Corvette trim tags became a simple matter since NCRS published the "Trim Tag Book" in 2005. It's the first thing checked (by the Team Leader) before actual judging starts.
15  Camaro Research Group Discussion / Decoding/Numbers / Re: Motor vin stamp vs. transmission vin stamp on: January 15, 2015, 02:54:57 PM
So I was looking at the report and saw that Firebird was added to Norwood in 69. How was this accomplished? Would the Camaro fixtures work on the Firebird as well, or was there different fixtures/equipment depending on the build?

Most of the basic (Fisher Body) body tooling was the same except for only minor part differences; on the Chevrolet side of the plant, new tools/fixtures were built for the Pontiac-specific assemblies, holes had to be drilled in the subframe for the clip screws for the Pontiac left-side fuel line, etc. Lots of new parts and tools, lots of operator training. Two car lines with the same 2-door body was a piece of cake - many GMAD plants ran THREE car lines (like Buick, Olds, Pontiac) plus Chevy, with the full range of body styles from 2-doors to 4-doors to convertibles to 9-passenger station wagons, all on the same line.  :-)
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