Thread: 1951 Chevy M/C

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Ok.. pulling my '51 Chevy out, the brakes felt a little spongy and had a lot more pedal travel than I'm used to with it, but the brakes still work good... I'm gearing up to finish this car, so I'm going to bleed the brakes out and see where that gets me, should fix it but, I'm not sure.. problem is, I have never bled out an under floor master cyl. is there anything special I need to do?

We had master cylinders like that on the old trucks . We would back bleed them . Remove the master cylinder top and start with the right rear bleeder . We had a small hand pump on a one gal can . We used a vac hose on the end of the pump . This was the only way we could get a full brake pedal .

I built an adapter to put a standard air hose fitting on the M/C lid, then put 10# of pressure to it. open the bleeders one at a time till no bubbles come. You have to keep checking the fluid level, but it's less messy than the regular pressure bleeders when you're working inside the car.

Originally Posted by tango

We had master cylinders like that on the old trucks . We would back bleed them . Remove the master cylinder top and start with the right rear bleeder . We had a small hand pump on a one gal can . We used a vac hose on the end of the pump . This was the only way we could get a full brake pedal .

tango,
Your the only other person I know that does them that way, I have a power bleeder that I made from a old VW washer bottle, it works great, But I have to bleed my trike, pushing the fluid back into the MC or it will Not get the air out.
It works great on all cars that way, just don't over flow the MC.

Pat

I could do that. I think I could get a new M/C cover and put a Schrader valve in the top.