FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
67 manual brake push rod
Anyone have a picture of the push rod for a manual drum brake 67? We are putting a dual reservoir master cylinder on my son's 65 Tempest, and we have a 67 master cylinder that said it was for manual brakes, but the push rod from his 65 doesn't fit. If I can see a picture, then maybe I can figure out how to make this work.
Thanks, Importsmasher
__________________
Scott Baggiore 66 GTO convertible 389/4 speed (parents bought new) 73 Firebird Formula 400/4 speed 74 GTO 455/4 speed 74 Grand Am |
#2
|
||||
|
||||
Don't know if this will be of any help, it is a snip from the electronic version of the 66 Pontiac Shop Manual showing the manual master cylinder.
__________________
Fort Worth/Dallas TX area 1966 GTO Fontaine Blue 389 CID Carter AFB Muncie 4 speed (orginally an automatic car) |
#3
|
||||
|
||||
That diagram shows exactly what I just pulled off my son's car. I'm trying to see what the 67 configuration looks like, although according to Ames, all manual brakes use the same rod 64-72.
__________________
Scott Baggiore 66 GTO convertible 389/4 speed (parents bought new) 73 Firebird Formula 400/4 speed 74 GTO 455/4 speed 74 Grand Am |
#4
|
||||
|
||||
Does that include both single and dual reservoir masters?
__________________
Greg Reid Palmetto, Georgia |
#5
|
||||
|
||||
How I made a brake master cylinder pushrod that fit my application from OEM and replacement parts:
https://forums.maxperformanceinc.com...6&postcount=12
__________________
1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
#6
|
||||
|
||||
According to Ames, yes. The issue I'm having is the original master cylinder has a shallow depression where the rod sits, and a retainer that is held in with a clip. The replacement master cylinder we bought, supposedly for a 67 GTO (power and manual brakes), has a deep hole in the back of the piston, and the retainer is too big to fit.
Hopefully that makes sense, and I am attaching pictures to try to illustrate.
__________________
Scott Baggiore 66 GTO convertible 389/4 speed (parents bought new) 73 Firebird Formula 400/4 speed 74 GTO 455/4 speed 74 Grand Am |
The Following User Says Thank You to importsmasher For This Useful Post: | ||
#7
|
||||
|
||||
Quote:
__________________
Scott Baggiore 66 GTO convertible 389/4 speed (parents bought new) 73 Firebird Formula 400/4 speed 74 GTO 455/4 speed 74 Grand Am |
#8
|
||||
|
||||
I was able to use my original single pot master pushrod with the 2nd-gen F-body dual master without any mods to the pushrod assembly. It didn’t have anything retaining it like it did with the single master, I simply removed the retainer and clip and it worked fine with the 2nd-gen master.
The original pushrod came from my ‘64 Tempest that had factory power drum brakes. When I went to the new ‘77 Malibu (and others) master that’s when I had to do a little work to make the pushrod compatible with the new master.
__________________
1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
#9
|
||||
|
||||
Quote:
Maybe I should just weld an extension onto the original rod so that it protrudes into the deeper hole of the new master. That would allow me to use my original rod and not have a chance of it falling out.
__________________
Scott Baggiore 66 GTO convertible 389/4 speed (parents bought new) 73 Firebird Formula 400/4 speed 74 GTO 455/4 speed 74 Grand Am |
#10
|
||||
|
||||
It’s essentially trapped so it can’t fall out.
The brake pedal can only pivot towards the driver so far before it hits the stop. Put it all together and you’ll see. No problem for me in 30k miles of daily commuting. It’s probably easy to find a longer pushrod you an adapt like I was able to do, either at a local junkyard or even your local NAPA.
__________________
1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
#11
|
||||
|
||||
That makes sense. Thank you!
I saw this on Ames website, Maybe this is what I need. A different style push rod retainer that Ames lists for 67-72.
__________________
Scott Baggiore 66 GTO convertible 389/4 speed (parents bought new) 73 Firebird Formula 400/4 speed 74 GTO 455/4 speed 74 Grand Am Last edited by importsmasher; 12-08-2023 at 09:40 PM. Reason: Forgot picture |
#12
|
||||
|
||||
We used Summit Racing RSD-R03 push rod. Cut threads to fit manual 67 dual master conversion.
|
#13
|
|||
|
|||
Quote:
|
#14
|
||||
|
||||
Quote:
Importsmasher
__________________
Scott Baggiore 66 GTO convertible 389/4 speed (parents bought new) 73 Firebird Formula 400/4 speed 74 GTO 455/4 speed 74 Grand Am |
The Following User Says Thank You to importsmasher For This Useful Post: | ||
Reply |
|
|