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Author Topic: 69 brake calipers  (Read 3777 times)
DT
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« Reply #15 on: September 09, 2012, 10:32:44 AM »

Oops, maybe you could get them for $75.00. Donny did they resleeve your single pistons?
I haven't seen anyone specifically say they sleeve single piston units.

Todd
1969 single piston calipers have a stationary seal in the caliper bore and the piston seals against it. It really doesn't matter if the caliper has pits in it because it doesn't provide a seal.Therefore there is no need to re-sleeve it. If your pistons are pitted that's a problem that would contribute to a leak. George
[
George summed it up. No sleeve.
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Donny
Hans L
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« Reply #16 on: September 10, 2012, 01:28:26 PM »

They're not that hard to rebuild yourself.   You can buy a rebuild kit from NAPA for under $20, not including the piston.

Basically:

- Use compressed air to blow out the old piston (place a piece of wood in the caliper to let the piston slam into).  Compressed air fed into the brake line hole.
- Removed the old seals
- Thereafter, I de-rusted the calipers using the electrolysis process and applied Boeshield to retain natural cast iron finish.
- Went to Harbor Freight and bought a caliper piston seal press for like $10
- Installed the new seals
- Installed the old piston as it was in good shape.

Done!  The Chevy Chassis Service Manual describes the process as well.



Date Code:  "87"






Note:  I've already chanced the bleeder cap to the lighter pale blue.
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http://www.littooy.com/hans/
'69 Camaro RS Z/28 Van Nuys Built
Mike S
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« Reply #17 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?

Mike
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67 LOS SS/RS L35 Hardtop - Original w/UOIT
67 NOR SS/RS L35 Convertible - Restored
DT
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« Reply #18 on: September 13, 2012, 07:56:07 PM »

Excellent pic on the date code Hans!!  Most guys claim the casting # is the date code.
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Donny
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« Reply #19 on: September 13, 2012, 11:57:40 PM »

After reading thsi thread, I checked the date codes on mine (while they are off), and found one with a 3 digit code, and the other with a 5 digit code...  doesn't seem to correllate iwth the infomration in the beginning of this thread..   Anyone with more information?
Gary
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
BillOhio
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« Reply #20 on: September 14, 2012, 08:57:03 AM »

Great pictures.
Napa does have pistons and the guy said it was used for a while, maybe into the 80's
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1969 Z28, Burgandy, numbers matching, 12,900 miles
1967 Plymouth GTX Hemi, 4 speed, dana
NoYenko
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« Reply #21 on: September 18, 2012, 07:57:10 PM »

Hans, Nice rebuild job & finish on the calipers. Where did you find pale blue bleeder caps? George
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Fred Mertz
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« Reply #22 on: September 18, 2012, 11:50:39 PM »

I purchased reman. calipers from NAPA auto parts a couple of years ago.  I think they $38.00 each. They had them in stock. I kept the old ones as spares.  Don't get the ones that MCB or Right Stuff sells. They will send you calipers for a Chevelle that the brake hoses won't work with.
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Hans L
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« Reply #23 on: September 20, 2012, 05:58:24 PM »

Thanks all on the feedback!

Regarding the pale blue bleeders - the originals were in good enough shape to re-use.   I just de-greased and cleaned them.  Though I think Steve's Camaro Parts & HBC sells the correct ones.  I know Rick's does not....

And yes, NAPA sells the piston, but unless it's really corroded, no need to replace it - it does not touch the cylinder walls.
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'69 Camaro RS Z/28 Van Nuys Built
69Z28-RS
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« Reply #24 on: September 21, 2012, 12:11:18 AM »

Going back to the date codes for a moment, there are 'cast dates' on the calipers, and also stamped dates:   on my two calipers from my 09C (1969) Z28,  on one caliper was a cast code of 143 (23May), with stamped date of 168 (17June).   On the other, was a cast date of 188 (7July), and a stamped date of 227 (15August).   All of these dates seem reasonable to me for calipers.   Am I interpreting the cast and stamped dates correctly?   The castings are done, then some time later, (3 to 5 weeks later in my caes), the parts are machined, the calipers built/assembled, and the assembly dates stamped in.   Note:  My '227 stamped date actually seemed to be 00227, but I interpreted it the same way?

Gary
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
DT
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« Reply #25 on: September 27, 2012, 07:04:29 PM »

After reading thsi thread, I checked the date codes on mine (while they are off), and found one with a 3 digit code, and the other with a 5 digit code...  doesn't seem to correllate iwth the infomration in the beginning of this thread..   Anyone with more information?
Gary
What are the codes (date stamps) Huh
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Donny
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« Reply #26 on: October 01, 2012, 07:11:08 PM »

DT:   I posted the dates in the prior post to yours (but maybe you missed it?)..  "on my two calipers from my 09C (1969) Z28,  on one caliper was a cast code of 143 (23May), with stamped date of 168 (17June).   On the other, was a cast date of 188 (7July), and a stamped date of 227 (15August).   All of these dates seem reasonable to me for calipers. "
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
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