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102327 Posts in 12077 Topics by 4663 Members
Latest Member: dens 69 rs/ss
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61  Camaro Research Group Discussion / Decoding/Numbers / Re: 69 Muncie Transmission tag (pn?) on: May 09, 2014, 12:28:26 PM

Based on bcmiller's post below, were different PN's used on Muncies based on the *rear end ratio*??  Why would they do that??
(I'm trying to learn my 'Camaro new information for the day'...  Smiley

Because each different rear end ratio required a different plastic (I think) gear to make the speedometer read correctly.

Actually, the plastic DRIVEN gear was installed at the car assembly plant. What changed was the internal steel DRIVE gear that was pressed on the output shaft at Muncie;

Actually not pressed on, the gear slips over the tail end of the mainshaft and is secured by a spring steel clip. How do I know ? My '69 Z M20 clip broke, lodged in the reverse gear, and jammed the transmission. I made it to the station I worked at, pulled the trans and found the problem. New clip and back in business. Earlier Muncies pressed on - 

Yup - the nylon DRIVE gear and spring steel retainer started in '68.
62  Camaro Research Group Discussion / Originality / Re: Correct engine paint suggestions please! on: May 08, 2014, 11:45:00 AM
This photo shows what looks to be either a way to manipulate the engine for painting or part of the mask for the end of the water pump and the by pass hose is this correct?

Yup, that's correct.
JohnZ-You mean both? Manipulate engine and/or mask?


Yup, both.
63  Camaro Research Group Discussion / Decoding/Numbers / Re: 69 Muncie Transmission tag (pn?) on: May 08, 2014, 11:36:58 AM

Based on bcmiller's post below, were different PN's used on Muncies based on the *rear end ratio*??  Why would they do that??
(I'm trying to learn my 'Camaro new information for the day'...  Smiley

Because each different rear end ratio required a different plastic (I think) gear to make the speedometer read correctly.

Actually, the plastic DRIVEN gear was installed at the car assembly plant. What changed was the internal steel DRIVE gear that was pressed on the output shaft at Muncie; there were two different diameter steel DRIVE gears that only worked with two different "families" (diameters) of plastic DRIVEN gears, depending on the axle ratio, and the transmission assembly part number on the steel tag was the only way Muncie or the car assembly plant could tell which transmission they had.
64  Camaro Research Group Discussion / Originality / Re: Correct engine paint suggestions please! on: May 07, 2014, 09:57:02 AM
This photo shows what looks to be either a way to manipulate the engine for painting or part of the mask for the end of the water pump and the by pass hose is this correct?


Yup, that's correct.
65  Camaro Research Group Discussion / Originality / Re: Correct engine paint suggestions please! on: May 06, 2014, 10:26:43 AM
<<Please note that tonowanda built SB had the manifolds installed before painting Flint did not.
What this means is Z28's did NOT come with painted exhaust manifolds. >>

That's correct - the process changed at Flint V-8 in 1965 to install the exhaust manifolds after paint; the photo below shows the Tonawanda paint line, and you can see the second engine is a small-block with the exhaust manifolds in place.
66  Camaro Research Group Discussion / Originality / Re: Chrome trim options. on: May 04, 2014, 12:36:16 PM
From the recent photos of your car you posted John, you've never drilled out the braze and reinstalled them??

Nope. I have the parts, but haven't felt like re-drilling the holes through the braze.
67  Camaro Research Group Discussion / Decoding/Numbers / Re: 69 DASH VIN # on: May 04, 2014, 12:13:48 PM
if I sand it might show something what else could you look for

DON'T SAND it - that will destroy the surface and broach marks; use paint remover and a rag.
68  Camaro Research Group Discussion / Decoding/Numbers / Re: fake protecto plates heard any stories on: May 04, 2014, 12:11:30 PM
I noticed a lot of different shades of color of the metal used on pop's some look really shiny aluminum and some look dark grayish color what type of medal were they supposed to be made of

The P-O-P Addressograph blanks were STEEL.
69  Camaro Research Group Discussion / General Discussion / Re: 1969 Z28, One Owner Carolina Blue Crossram JL8 on: May 04, 2014, 11:27:57 AM

When a car with a special ordered paint color, such as this blue, did it get any special treatment when going through the paint shop?

No, it was just a huge PITA dragging air-powered pressure pots through the booth and hand-spraying the body; spare circulating systems in each booth didn't get filled with special paint unless the order was for at least 50 cars (it took 100 gallons to fill a circulating system).
70  Camaro Research Group Discussion / Originality / Re: Chrome trim options. on: April 30, 2014, 09:23:59 AM
Interesting, I had to go back and look at the other thread where you posted about your tires. Seems like it would have been easier to order a X77 car and add the items that you wanted. But every 69 came with the "Camaro" emblem so I guess he would had  to deal with that still. What year did he have that done?

He had it done the week the car was delivered (early March, 1969). If you look down the inside of the rear of the fenders with the door open with a flashlight, you can see the little globs of braze in the emblem holes.
71  Camaro Research Group Discussion / Originality / Re: 837 alternator fan on: April 30, 2014, 09:12:33 AM
older thread but I was wondering how many 837's had other than the "hook blade" as pictured above? pictures?

I wouldn't think any did - the alternator part number defined several characteristics, and if any of them changed, the alternator assembly part number changed:

Current output and curve

Physical "clocking" of front and rear case castings

Type of fan

Type of pulley

None of those attributes changed during the 1969 model year run, and neither did the alternator part number.

72  Camaro Research Group Discussion / General Discussion / Re: What wheel size looks good on a 1967 RS ? on: April 30, 2014, 08:36:56 AM
Just closer so I can see the wheels and tires.

You have 15x6 right ?

Nope. 15x7, original.
73  Camaro Research Group Discussion / Originality / Re: Chrome trim options. on: April 29, 2014, 11:13:47 AM
<<I'm surprised if there's not an original option for the 'Bright Wheel Lip Mouldings' by themselves.....  >>

Nope, there wasn't - if you wanted wheel lip moldings, you had to order the Z21 Style Trim package and take all of it - drip moldings, quarter louvers, wheel opening moldings, taillight dividers, headlamp bezel trim, etc.

The original owner of my X33 car ordered it with just about everything you could get on a Z/28, but didn't like the Camaro emblem on the fender or the quarter louvers, so he removed them, brazed the holes shut, and painted it between the wheel openings from the feature line down. Different folks, different strokes.  Smiley
74  Camaro Research Group Discussion / General Discussion / Re: 69 Z/11 L78 Pace Car "Unrestored survivor" on: April 29, 2014, 10:52:59 AM
<<Whether a "wives tale" or not, I have never verified what I have been told and it is this: "When Chevrolet align bored the Big Block at Tonawanda the fixtures were designed to do the Small Block and the boring bar was not long enough to do the Big Block in a single step, so the block was indexed 180 degrees and did the back two mains on a second pass coming in from the back. This is why B. Blocks always should be align bored.".>>

As a former Chevrolet Manufacturing/Production Engineer, I seriously doubt that assumption. NOTHING is more important in a block than having the main bearing bores absolutely concentric, and I can't imagine doing three from the front and two from the back - there's only 1-7/8" difference in the overall length of the block from the SB to the BB, and BB's weren't built using old SB tooling.

Machine shops that want to align-BORE every BB block are just looking to pad the bill; align-HONE is a different issue entirely.
75  Camaro Research Group Discussion / General Discussion / Re: What wheel size looks good on a 1967 RS ? on: April 29, 2014, 10:34:09 AM
Great car John.

Any chance of some pic more close up ?

/Claus

Anything in particular you'd like to see?
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