Am I about to do something stupid?

Post by **6thdude** » Thu Dec 15, 2005 6:17 pm

Hi all,
I'm going to re-do the brake master cylinder and bits on Saturday and I've painted the rather rusty push rod which attaches to the brake pedal. I had a horrible thought though. By painting this item am I going to get paint into my master cylinder? My logic being: as rod pushes piston, brake fluid seeps past seals and reacts with paint, which is then slowly drawn back into the master cylinder and thus knackering it.
Humm? I know the cups should keep the brake fluid inside the cylinder but surely some gets past?
Any ideas?

Cheers
Jim

Post by **lowedb** » Thu Dec 15, 2005 7:19 pm

I know the cups should keep the brake fluid inside the cylinder but surely some gets past?

Not if it's working. Otherwise you'd lose your fluid quite quickly.

Post by **bmcecosse** » Thu Dec 15, 2005 10:44 pm

Fluid should not be coming and going in/out the master cylinder! If in doubt remove the paint.

Post by **bigginger** » Thu Dec 15, 2005 10:47 pm

and/or repair the cylinder.

Post by **Cam** » Fri Dec 16, 2005 4:44 pm

Jim, it should be absolutely fine. No fluid gets into the end 'cup' where the pushrod sits.

Post by **6thdude** » Fri Dec 16, 2005 6:27 pm

Cheers chaps, just thought I should check. wouldn't want to have to flush out all the brake lines!

Jim