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104706 Posts in 12247 Topics by 4719 Members
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766  Camaro Research Group Discussion / Decoding/Numbers / Re: Brake Booster date code on: September 18, 2012, 10:14:50 AM
 I see your car is a '69 but if it helps, my 67 LOS 4B still has the original 8515 booster dated 82.
Give Steve at a call. He has some intersting findings on booster dates and has likely seen more boosters than anyone here.

767  Camaro Research Group Discussion / Maintenance / Re: Exhaust for '67 2 bbl single exhaust on: September 15, 2012, 06:41:27 PM
  Most muffler shops can custom bend a system. I would recommend to get aluminized pipes for longevity.

768  Camaro Research Group Discussion / General Discussion / Ouch! One less '69 on: September 14, 2012, 09:09:49 AM
  One less '69 Camaro:

Looking at the Yenko Nova, I wonder if that was a clone or a die-hard racer using a real Yenko car for what it was build for.
Anyhow...I'll only image in my mind what my cars can do in the 1/4 mile and save the real risks and costs to someone else  Grin

769  Camaro Research Group Discussion / Restoration / Re: 69 brake calipers on: September 10, 2012, 05:55:05 PM
 It looks soooo good when the parts are new or restored. Makes you not want to drive it now, doesn't it?

770  Camaro Research Group Discussion / Restoration / Re: 67 Hold Off valve finish on: September 09, 2012, 09:31:32 PM
  Interesting to see your bracket also has a groove in it  like mine on both cars. This is absent in the repos. I also noticed your bolt is black compared to the repos zinc.
I removed the one on my survivor as well as examining the original one on the convertible I am restoring and they both are clearly black phosphate.
So much for the repos!
  I'll likely keep the body raw cast (it cleaned up great with glass beading) and coat with RPM to preserve it and gray phosphate the cap.
Compared to the repos, there's a lot of differences.

Thanks again for all the replies.

771  Camaro Research Group Discussion / Restoration / Re: 67 Hold Off valve finish on: September 08, 2012, 09:17:40 PM
Hi George,

  Thanks for the input. That is good to know and I see it extends into 69!
Question, will you be finishing the outside main body...cast or black?

Thanks again,
772  Camaro Research Group Discussion / Restoration / Re: What is the best after market sheet metal? on: September 07, 2012, 06:49:19 PM

 Aside from quarters which have more involved contours and bends, have you used any of these brand door skins? I'm looking to replace a skin and being it's basically a flat surface with miniman bends I would hope the repos would fit nice.

773  Camaro Research Group Discussion / Restoration / Re: 67 Hold Off valve finish on: September 07, 2012, 05:31:18 PM
Hi Scott,

  I have the solutions for gray parkerizing. I soda blasted the part on the outside and it cleaned up really nice. I'll parkerize it to restore it to its original finish. The main body I may paint black or leave it and cover it with RPM. My guess is the cast parts may or may not have been painted. I wish I could look back 45 years to see for sure. So much for the repos as they can be misleading in what is supposed to be correct.

774  Camaro Research Group Discussion / Maintenance / Re: Freeing frozen piston in master cylinder on: September 07, 2012, 12:10:47 PM
 Did you remove the retention screw from the floor on the inside?
775  Camaro Research Group Discussion / Restoration / 67 Hold Off valve finish on: September 06, 2012, 07:20:04 PM
  I received the rebuild kit posted here last week from Muscle Car Research and upon cleaning the original hold off valve parts I noticed the round cover finish looks to be a gray phosphate type of finish. When dry it looks like the gray finish on my 45 ACP. In the images below you can see the interior gray finish as well as its extension into the flat machined edge. On the exterior you can clearly see the remaining gray finish in the machine mark rings. This leads me to believe the cover did in fact have a gray phosphate finish, at least in 67. I see many repro hold-offs and the cover cap is a gold cadmium color. Maybe that was later in 68-69 but this doesn't seem the case for '67. I have researched the CRG archives but can not find a definitive answer as to what the finish should be though I have seen another thread where another person with an early 68 Z had the same interior finish. Many say it was a bright zinc to gold finish. I'll be bringing pictures to shows in case the judging questions it.
  Any other 67 or early 68 owners see the same on your hold-offs? If you haven't opened yours up yet, you  may want to do it. It is a surprise of the amount of brown crud that develops inside though the outside looks clean.
Thanks to Muscle Car Research LLC for the fast delivery and excellent price!

Thank you,
776  Camaro Research Group Discussion / General Discussion / Re: Hemmings TV on: September 04, 2012, 07:21:31 PM

Let's see:

1-Wrong air cleaner housing
2- I don't see a PVC valve on the left side
3- Shouldn't the tac be a 6K RPM red line for the 396/375HP
4- Steering wheel vs. 760-Z standard interior
5- Wrong pitch on the rear atnenna
6- radiator overflow hose routing
7- A 396/375 with an auto tranny?
8- hood pins
9- engine lift brackets
10- left vave cover rear doesn't look correct
11- wrong radiator cap
12- ash tray front doesn't look correct?
13- front and rear spoliers- well..not factory least there is no fan sticker.

777  Camaro Research Group Discussion / Restoration / Re: GM 3905525 Metering Valve Disassembly and Rebuild on: September 01, 2012, 09:46:38 PM
 I placed my order plus the differential valve kit.
I was surprised how good the unit looks from the outside and the amount of brown crud on the inside.
Based on that I'm going to rebuild the brake pressure differential valve because I'm sure that has crud too.
The rest of my brake components are either new or rebuilt.

Thank you for the very well prepared instructions too!

778  Camaro Research Group Discussion / Restoration / Re: GM 3905525 Metering Valve Disassembly and Rebuild on: September 01, 2012, 05:06:19 PM
 Perfect timing...
I am looking at mine and could not figure out how to extract the internals until I had seen your article.
As for a classified section, CRG has none specifically but if you post the info here I believe it will spread quickly as many here have the same setup and likely ageing conditions.
I'm certainly interested in what you have.

779  Camaro Research Group Discussion / Restoration / Re: 67 rear fuel line bracket finish? on: August 31, 2012, 07:54:49 PM
 I'm answering my own questions  Grin

  I removed the survivor clip from the car and examined it under a strong magnifying glass after cleaning it with soap and water and it has a slight gray hue to it (definitely a dried out phosphate look) and I gave it the finger nail test.
Painted surfaces, even slightly oxidized, still feel smooth to the nail but the phosphate surface has more granular feeling to it. Kind of like the feel of dragging your nails across a black board.
I'm going with phosphate finish because I have no doubt that is it.

780  Camaro Research Group Discussion / Maintenance / Re: Miss in engine on: August 31, 2012, 03:06:05 PM
 My vote would be rust particles in the lifter that are trapped.
If that much water damage was done to the motor then it's only a matter of time before something else happens.
I would suspect the bearing surfaces (rod and mains) were damaged and will cause troubles soon.
I wonder what the cylinder walls looked like before you had started it again.

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