2nd Gen Non-Engine/Transmission master cylinder overflowing?

[TMills]

I just got my brakes done at a local shop and they work good, but when I got back to work I saw some fluid on the ground. I popped the hood and my master cylinder had overflowed. I called the shop and they said that it was ok and not to worrry about it. Should I be worrying about it? Will it harm anything if it is overflowing? How do I get it out if it is bad?

 

[ntillm01]

They did a less-than-professional job...

During a brake job, the disk brake caliper pistons must be pushed back into the caliper. This pushes fluid back up into master cylinder. If the master cylinder was topped off inbetween original brakes and the new ones (normal because of pad wear) there is now too much fluid in the master cylinder. The right thing to do would have been to remove fluid from the master before pushing the pistons back in, then making sure it was right at the end of the job.



I would wash the whole area around the "spill" and the inner fender, etc. Some types of brake fluid like to eat paint. It should not have harmed your brakes.

 

[MLee]

And they should have bleed out the bleed screw, back of caliper any way. Rather than FORCE all the contaminants back into the master cylinder. Bad on those rubber seals.

 

[vssman]

It's also bad for any hoses in the "drip" area. Brake fluid eats up vacuum lines, fuel lines, etc...

 

[ProspectorTim]

I'm not a brake expert by any means, but I have seen it posted here on TDR many times, that it is also BAD to force the fluid back through the ABS system.

 

[mroidt]

Hose down the whole area that got wet with Brakekleen found at any parts store, or it will eat paint right down to the Metal.

 

[RT66DOC]

Sheeesh. Like a restaurant that serves a crappy cup of coffee. What business are they in anyway?