Cleaning Master Cylinder With Alcohol?

[gmwillys]

One thing to keep in mind when rebuilding your brake components is to invest in a brake hone to dress up the internal surfaces. This will clean up and true up the piston sealing surface.

To answer your question, most people soak the pistons in brake fluid to prepare them for install. This will help the rubber to seal up better.

I haven't had a ton of luck rebuilding these components because of salt and rust intrusion. It was time and money well spent to go ahead and purchase new American made pieces. The parts are about double to what these outfits as for theirs, but the American made brands fit exactly as the original did. The Crown or ADA brands are alright, but you have to modify the dust plate to get the mount bolts to fit.