Author Topic: 69 brake calipers  (Read 4598 times)

DT

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Re: 69 brake calipers
« Reply #15 on: September 09, 2012, 03:32:44 PM »
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.
Donny

Hans L

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Re: 69 brake calipers
« Reply #16 on: September 10, 2012, 06:28:26 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.
http://www.littooy.com/hans/
'69 Camaro RS Z/28 Van Nuys Built

Mike S

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Re: 69 brake calipers
« Reply #17 on: September 10, 2012, 10:55:05 PM »
 It looks soooo good when the parts are new or restored. Makes you not want to drive it now, doesn't it?

Mike
67 LOS SS/RS L35 Hardtop - Original w/UOIT
67 NOR SS/RS L35 Convertible - Restored

DT

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Re: 69 brake calipers
« Reply #18 on: September 14, 2012, 12:56:07 AM »
Excellent pic on the date code Hans!!  Most guys claim the casting # is the date code.

69Z28-RS

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Re: 69 brake calipers
« Reply #19 on: September 14, 2012, 04:57:40 AM »
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
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
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BillOhio

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Re: 69 brake calipers
« Reply #20 on: September 14, 2012, 01:57:03 PM »
Great pictures.
Napa does have pistons and the guy said it was used for a while, maybe into the 80's
1969 Z28, Burgandy, numbers matching, 12,900 miles
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible

NoYenko

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Re: 69 brake calipers
« Reply #21 on: September 19, 2012, 12:57:10 AM »
Hans, Nice rebuild job & finish on the calipers. Where did you find pale blue bleeder caps? George

Fred Mertz

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Re: 69 brake calipers
« Reply #22 on: September 19, 2012, 04:50:39 AM »
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.

Hans L

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Re: 69 brake calipers
« Reply #23 on: September 20, 2012, 10:58:24 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.

69Z28-RS

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Re: 69 brake calipers
« Reply #24 on: September 21, 2012, 05:11:18 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

DT

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Re: 69 brake calipers
« Reply #25 on: September 28, 2012, 12:04:29 AM »
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) ???

69Z28-RS

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Re: 69 brake calipers
« Reply #26 on: October 02, 2012, 12:11:08 AM »
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. "