brake problems

[jimsopals]

I have a big problem with my brakes.
I let my car set for 2 years and had to replace the master cylinder,now the front wheels lock up and I can't stop.The car has disc brakes on all four wheels.
Would a proportion valve help? Also the pedal is very hard.Any help would be greatly appreciated
Thank Jim

 

[EX JUNK]

If you are using DOT3 fluid in your system, the two year hibernation probably allowed moister to accumulate in the system causing rust. I suggest that you tear the system apart and THOROUGHLY clean EVERYTHING. Then reassemble and add NEW fluid and bleed system.

On all the cars that I have built, I use all stainless lines and fittings along with silicone fluid because it does not attract moisture. Doing it this way will allow a long hibernation without any worry.

Jim

 

[bobscogin]

I have a big problem with my brakes.
I let my car set for 2 years and had to replace the master cylinder,now the front wheels lock up and I can't stop.The car has disc brakes on all four wheels.
Would a proportion valve help? Also the pedal is very hard.Any help would be greatly appreciated
Thank Jim

Was everything in the brake system functioning correctly *before* the car went into storage? Is the new master cylinder the same model / specifications as the one you removed?

Bob

 

[jimsopals]

No I went to a larger mastercylinder

 

[409T]

When you release the brake pedal the piston in the master cylinder has to travel all the way back to it's open position. Not within 1/16" or so, all the way. That means that when the pedal is released and has traveled all the way to it's resting position, there should be a little play between it and the rod that goes into the master cylinder. I have left this thing just SLIGHTLY tight in the past and had the same problem.

Jeff

 

[jimsopals]

Thankyou for all the ideas this should thake me a few days to try them all will get back to you at a later date thanks for all the help
Jim

 

[jimsopals]

Well I
got the brakes to work,but would like them to work better,does anybody know anything about vaccum pumps and would I need a storage system to make it work?

 

[putz]

So you have power brakes? Are you running a big cam with low vacuum is that why you need a pump.

 

[jimsopals]

Yes I am running blower .Years ago I installed a forklift power booster that seemed to work ok than,but eather I am older now and don't have the leg strength because I don't stop as easy as it use to.
Thanks
Jim