master cylinder started leaking under front of brake fluid reservoir, then started leaking at rear of master cylinder where it joins with the booster.

what do I need to replace?
Thanks.

 

The master cylinder, or if you know how, renew the internal seals as long as the bore of the cylinder is not rusty or scored.

 

Thank you Greg

 

Hi Jose,

I had the same problem with mine last year. Once I got the master cylinder off I found it to be very rusty and pitted so replaced it rather than trying to put new seals in.

I did find though that the paint under the brake booster (servo in the UK) had turned to mush where the fluid had dripped. I had to take the booster and pedal box out to clean it all up and repaint the area so it turned into quite a big job. Reasonably straightforward though.

 

Thanks XJRAYUK,
Yes, the leak has melted the paint under the master cylinder, fortunately the leakage has not damaged the paint under the booster. I ordered a new master cylinder for the same reason you mention. Didn't want to bother trying to rebuil the original one.

 

Joe:

That would be my option Nowadays, Buy a rebuilt one.

In years past, I would rebuild. buy a kit and make sure I had a hone to clean up the bore.

Brake fluid is a great paint remover.

I was lucky, a PO replaced both booster and cylinder in my car.

Teh flot atop is messed up. I had it working at one time!


Carl.

 

Carl I ordered a new one CAC1229 DELPHI OEM. Hopefully the booster is fine.

 

Did you need to replace the seal inside the servo when you removed the master cylinder?

 

no, just the master cylinder