So I found a brake master cylinder leak and found two options on rock auto. One is a raybestos the other ACDelco. They each have exactly the same picture, raybestos is 100 and ac delco is 139.
It's most likely the same casting, just a different name on the box. "AC Delco" is an offshore brand now, and has been for several years. "Delco Remy" was a division of General Motors that made electrical parts back in the 50's and 60's, possibly as late as the 1970's. I don't think they ever made brake parts. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Rebuild it and when you do, hone it carefully and well using brake fluid to lubricate the honing stones. Polish the bore if you are able. That leak will stop unless rust and age have pitted your bore too far. I've seen some that leaked like that out of the box.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
Somebody with a lathe and a little common sense can bore and sleeve your original master cylinder with a piece of stainless steel tubing, and it will out live you, and possibly your grandkids. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
