CRG Discussion Forum
Welcome, Guest. Please login or register.
Did you miss your activation email?
November 23, 2014, 06:11:05 AM

Login with username, password and session length
Search:     Advanced search
Welcome to the CRG Discussion Forum!
Forum registration problems: Make sure you enter your email correctly and you check your spam box first. *Then* email KurtS2@gmail for help.
106497 Posts in 12421 Topics by 4787 Members
Latest Member: Oilron14
* Home Help Search Login Register
+  CRG Discussion Forum
|-+  Camaro Research Group Discussion
| |-+  Originality
| | |-+  Booster check valves
« previous next »
Pages: [1] Print
Author Topic: Booster check valves  (Read 321 times)
NoYenko
Member
***
Posts: 324



View Profile
« on: November 17, 2014, 08:49:07 PM »

I was told at the Camaro Nationals I had the wrong check valve on my brake booster and I am confused on which one I need for an early 69 ( Nov 68 ) built car. In the photo #1 is what I had at the show, I thought it was original. #2 is on my friends 4-69 built car, #3 is what I have seen in some other posts on 68-69 cars. I couldn't find any discussions here so I thought I ask, what have you seen or know to be correct. George
Logged
Camarocards
Member
***
Posts: 101


View Profile Email
« Reply #1 on: November 17, 2014, 10:14:42 PM »

This is what I have on my 68 SS L35 which I believe to be original to the car.

Bob
Logged

Bob
'68 SS L35 01D
68camaroz28
Hero Member
*****
Posts: 995



View Profile Email
« Reply #2 on: November 17, 2014, 10:20:04 PM »

George, your #2 posted would be the correct one.
What Bob has is of course correct.
Oh, and the reason you see so many of the third picture you showed is due to that is what you normally get back on a restored booster.
Logged

Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
68camaroz28
Hero Member
*****
Posts: 995



View Profile Email
« Reply #3 on: November 17, 2014, 10:57:29 PM »

George, some examples include this one on a Power Booster dated 5/31/68.

Late Dec67 built 68Z with the same valve.

Late 07D 68Z/28


I had posted this pic in my build thread showing what is normally seen in cars and had noted the middle one was correct. Check out post #814 http://www.camaros.net/forums/showthread.php?t=182584&page=55

Logged

Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
NoYenko
Member
***
Posts: 324



View Profile
« Reply #4 on: November 18, 2014, 08:52:52 PM »

Guys thanks for the quick response, would anyone have an extra #2 check valve they would want to sell, send me a PM. Thanks. George
Logged
KurtS
CRG Coordinator
*****
Posts: 3290


View Profile Email
« Reply #5 on: November 18, 2014, 10:38:06 PM »

#2 is commonly seen, but again, there were multiple suppliers.
Logged

Kurt S
CRG
68camaroz28
Hero Member
*****
Posts: 995



View Profile Email
« Reply #6 on: November 19, 2014, 07:17:26 AM »

#2 is commonly seen, but again, there were multiple suppliers.
Sure there were Kurt as just about everything else did but what did they look like? I've been looking for two plus years and only have noted the aforementioned #2 on cars that had a high degree of being un-molested. 
Logged

Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
cook_dw
Hero Member
*****
Posts: 941



View Profile Email
« Reply #7 on: November 19, 2014, 07:53:11 AM »

Not that it matters but I have seen a few like the #3 (less than 5).  #1 never.  Most of the time its been #2.
Logged

Darrell Cook

1967 LeMans Blue SS/RS L35 clone
1968 Rallye Green SS L78 - unrestored original
1968 Matador Red Z28
KurtS
CRG Coordinator
*****
Posts: 3290


View Profile Email
« Reply #8 on: November 19, 2014, 09:48:12 PM »

I recall also seeing another design. I'll have to look.
#3 is from the 70's, IIRC.
Logged

Kurt S
CRG
ZLP955
Member
***
Posts: 483



View Profile
« Reply #9 on: November 20, 2014, 04:45:46 AM »

Can originals be rebuilt, or are they non-serviceable?
Logged

Tim - 04A VN '69 z/28 69-69 715 ex-E/MP
Camarocards
Member
***
Posts: 101


View Profile Email
« Reply #10 on: November 20, 2014, 07:55:34 AM »

Inside of the check valve is a spring and rubber diaphragm. The ribbed cap is glued (epoxied) to the body capturing both the spring and diaphragm. There is no way to remove the ribbed cap without totally destroying it.

You might might, however, get lucky like what happened to me. The ribbed cap on my original valve was not epoxied very well and literally just fell apart. This happened about 25 years ago. I was silly enough to put the body and cap (the spring and diaphragm were long gone) in a zip lock bag and threw it in my parts stash. Fast forward 25 years. When I discovered that all of the reproductions are not manufactured to appear as the original, I purchased a reproduction valve. Using a Drexel tool I carefully cut off the cap on the reproduction valve, removed the spring and rubber diaphragm and then reassembled them into my original valve using super glue to adhere the cap to the body. It now looks correct and functions perfectly.

If you're looking for correctness in your restoration, your best best is to scour the junkyards and swap meets and take the route that I did.

Good luck,

Bob
Logged

Bob
'68 SS L35 01D
Pages: [1] Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.093 seconds with 18 queries.