On the edge of brake problems!

[keith88]

Hi guys as some of you have seen i have been going though my 69 that i got back in march. Recently iv been doing the brakes when i got it it had a leaking drum booster and master but had disc brakes so i just put the correct disc booster and master and im on the edge of having a vacuum issue although the cam (318 engine) is not stock its not that big and i don't know what it is and neither did the guy i got it from. I have 20" and when you hit the brake it goes down to about 14, and i got that by missing with the timing but will go back up to 20-22 when you step on the gas. Good for about 3 to 4 hits in a row on the brake pedal before it starts to get a hard pedal. I already installed a vac can so my next try might be the installation of a vacuum pump in the future, has anyone done this and what should i look out for?

[Back N Black]

If you have 20" of vacuum, you don't need a vacuum pump. How does the car stop? Do the pedal get hard and you lose braking effect?

[keith88]

The car has 20" at the 1st pedal hit but goes down from there to around 14 so the 1st hit is good ,hit 4 or 5 it getting harder and dose no have great stopping ability, it dose go up under throttle its drivable but i would like a little insurance in the brake pedal. seeing that grill can no longer be found without having to sell your 1st born.

[keith88]

Just to put an end to this story i messed with the timing a little and now it seems to be good holding and has pedal.