Brake fluid leaks

[ORFORD2004]

I just found oil leaks between the master cylinder and the booster. What are my solution?

[baltobernie]

Rebuild the master cylinder. There are a couple of rubber seals for each circuit. If the bore is scratched or rusted, discard the M/C and buy a new one. Not all vendors carry the seals, but they are inexpensive. Most manuals detail this procedure quite well.

[puddin]

got a new mc for $55 from autozone --- works great brakes are really important

[WYSpider]

Classic Ricambi is the only place I have found Fiat MC rebuild kits, but I have never ordered from them.
http://www.classicricambi.com/index.php ... cts_id=256

[ORFORD2004]

At 35.95 from International, it's not better to put a new one? And do i have to change the booster also?

[bobplyler]

No, you don't have to change the booster.

[So Cal Mark]

if the booster has had brake fluid in it for any length of time, the diaphragm will likely fail soon

[ORFORD2004]

How can i see if the diaphragm is oily?

[baltobernie]

When you remove the M/C from the booster, if it has been leaking rearward (towards the booster), the fluid has gotten in.

Like just about everything else on the car, the OE parts are of better quality than what is currently available. This isn't an iron-clad rule, but generally speaking, if you can refurbish or restore the OE part, do it.

[majicwrench]

Like Mark said, if booster has oil in it it may fail. But may not also. Clean out what oil you can.
Rebuilt unit vs do-it-yourself....if you are not really comfortable rebuilding brake cylinders ( pretty simple stuff) go for the rebuilt. If you like getting dirty, fix old one. either way will likely work fine. BTW, minor scratches, pits in old cylinder are fact of life, and a few are not going to affect the effectiveness of the repair.
Keith

[ORFORD2004]

So, stage 1 is to remove the mc now and inspect it. Then , clean the booster and pray.