- Joined
- Feb 8, 2014
- Messages
- 320
- Reaction score
- 105
- Location
- Austin, Texas
- My Car
- 1971 SCJ Green
1971 CJ Pewter
1973 H-Code Copper
1967 Q-Code Galaxie
I have a 73 originally 351 car now has a 429. Vacuum is 11 -12 manifold vacuum. I had the booster and master cylinder rebuilt during the restoration.
Problem is, brake pedal is very easy to push when applied and if I hold the brake pedal down it bleeds off the pressure till it goes to a hard bottom. Thinking I did not have enough vacuum I added a vacuum pump ( very loud ) did not help. I add a vacuum canister and that did not help either.
The manifold vacuum is the same as my 71 J code and those brakes work great.
What do you guys think?
Problem is, brake pedal is very easy to push when applied and if I hold the brake pedal down it bleeds off the pressure till it goes to a hard bottom. Thinking I did not have enough vacuum I added a vacuum pump ( very loud ) did not help. I add a vacuum canister and that did not help either.
The manifold vacuum is the same as my 71 J code and those brakes work great.
What do you guys think?