It sounds to me like the master you got from NAPA is master for a 70-72. The
original master you got from the GP sounds like a 69 master. Can't remember
which one uses the short push rod and which one the long rod (between the
booster and the master) but these two masters use different sized rods. Your
problem would indicate you have the short rod in and need the long one.
Trooper
----- Original Message -----
From: harkema...@aol.com
To: chevelle-list@chevelles.net
Sent: Tuesday, July 13, 2010 2:53 PM
Subject: Re: [Chevelle-list] brakes/fuel gauge
ok i checked the inside rod at the pedal, and was going to try it in the
other hole, but i could not get it to move into the other hole because it was
hitting on things, i put the whole booster/rod ass'y from the gran prix into
the car.
i used the booster, spindles, porportioning valve from the gran prix, and got
the discs, calipers,hoses,brgs, master from NAPA for a 69 gran prix with front
discs.
i did notice that the original master was somwhat more rounded looking than
the one i got from NAPA which is more rectangular and when we measured the
outside length of the original and NAPA master the original one out of the gran
prix is longer than the one we put in, this was just measuring the outside of
the case-- if this matters ??
In a message dated 7/13/2010 1:20:24 PM Central Daylight Time,
ric...@gmail.com writes:
Did you change to a disc type master cylinder & a disc type
proportioning/distribution valve?
On Tue, Jul 13, 2010 at 7:27 AM, Dan Solomon <dansolo...@msn.com> wrote:
Harlan,
As for the brakes, where the booster and master cylinder both off the
grand prix? On the booster there is a shaft. They can be short or long. They
don't mix and match. A long shaft in a shallow master cylinder can be an issue.
Also when switching from manual to power, you need to move the pin in the
brake pedal to the other hole. If I remember correctly, move to the top hole,
but either way, the OTHER hole.
Dan
