Posted by Greg Coffin [172.68.34.7] on Saturday, June 10, 2017 at 11:10:15 :
In Reply to: Brake wheel cylinders needed posted by witzel [173.245.50.165] on Friday, June 09, 2017 at 20:54:03 :
I've had trouble over the years with leaking wheel cylinders and master cylinders on trucks that sit outside, unused for weeks or months at a time.
I've started using red rubber grease on the bores of my wheel cylinders and master cylinders when I rebuild them. My hope is that it will help keep moisture out of the system, and keep the aluminum pistons from sticking to the cast iron cylinder walls.
I started doing this 3 months ago, so I don't know yet if it helps or not. A lot of guys in England and Australia use it, and the mfg says that it's safe to use on brake system seals. We'll see how it goes.