chstitans42

So tomorrow morning, before the rediculous heat wave comes back through texas, I'm planning on replacing my leaking master cylinder. I know that I have to bench bleed it before I put it in, but I would like to know if anyone has any pointers or tips on this proccess. It will be my first time in doing this job.

Thanks for the help

...Roger...

Work all the air out. In the rear cylinder at the bottom is a small hole,make sure there is no air hiding in it. I tap the master with a wrench to work air loose. This link shows the proper way using the tubes.
http://forums.corvetteforum.com/c3-t...-question.html

0Paul Ruggeri

Bleed all 4 calipers until you get clean fluid and no more air out of all of them.

...Roger...

When you get the master on the car try to bleed as much air out at the master fittings that you can.
I've put master cylinders on and didn't need to bleed the wheels.

SanDiegoPaul

Yep but if the M/C is old enough to leak then probably the system should be flushed too.

chstitans42

The MC is bad because it has sat alot the last two years. The calipers are fine, seeing I have replaced them and the lines before...

GS977

i just replaced mine sunday. i have a tip for you. when i did mine i bled the master then bolted it on the car. then i tried to screw the lines to the master. the rear wouldn't line up. just a hair off and no room to get my hand in there and hold it and tighten it at the same time. so i had to loosen the master from the power brake booster so i could move the master a little and the lines went right on no prob. so i would put the master on and just give the 2 nuts a couple of turns to hold the master on then tighten the 2 lines then tighten the master up.
good luck
oh and yes it feels good outside for once in a long time. it was 71 this morning and a cool breeze blowing. better then the 101-106 it's been for the last month

JimT

1. Bench bleed.
2. Bench bleed.
3. Bench bleed!
Then bleed each wheel to remove all old fluid.