After bleeding the brakes at least 1000 times and ultimately discovering that I had air at all four corners vs the one cylinder I thought I had leaking, I pulled the master cylinder for inspection. There was some crud inside and some light pitting, though I don't think any of the pitting was in the seal surface area. I cleaned everything up and honed the MC and reassembled. After bleeding the brakes again throughly, I have the exact same problem as before. Since it's affecting all four wheels, I suspect the MC is pumping air. Before I order a new one, any thoughts or other suggestions?
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Re: C1 Brakes
Ed -
If your master cylinder is original, send it to White Post Restorations ( www.whitepost.com ), (540) 837-1140; they'll brass sleeve it, rebuild it, and have it back to you in three days with an unconditional guarantee. Best old brake parts restorers out there - they've done work for me for many years. -
Re: C1 Brakes
Use White Post. They did the master cylinder on my 62 10 years ago and I recently took it out to clean and add a fresh kit, no pits or scores good as new. Rich #2276Comment
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One new master cylinder kit later,
all is well with the brakes. Good firm pedal and no sign of sucking air. Probably should have rebuilt it long ago, but I was hungf up on seemingly getting air from one wheel. After I discovered all 4 were getting air the MC almost had to be the culprit. Thanks for the referal on sleeving. I got lucky with this one. I'm going to get a spare and keep it on hand in case my rebuild doesn't last.Comment
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Re: One new master cylinder kit later,
Ed -
Glad you found the problem and cured it - brakes can be pretty frustrating!Comment
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Re: One new master cylinder kit later,
No kidding. I just hope my rebuild job will hold up for a while. I've rebuilt two or three other C1 master cylinders and they've all done fine, but I am always concerned until they have a few miles on them.Comment
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