20round

I have my working 65 power brake master cyl that I would like to get rebuilt while the car is down. who? and how much? give me your thoughts guys...thanks troy

Nowhere Man

Lone Star calipers in Texas or White post. there is rebuild kits you can do it your self

Powershift

Rebuild it yourself if you feel it is not corroded inside. Otherwise send out for sleeving and rebuild to LS, White Post, or Apple Hydraulics.

Larry

R66

Both the master cylinder and the booster can be rebuilt by the average hot rodder.
The master cylinder is simple parts replacement if there is no pitting or wear in the cylinder. A hone will clean up minor imperfections, but, if you find pitting and want to save the original master cylinder, you are probably better off sending it to a rebuilder to be bored and sleeved.
If you are not dealing with the original, I found the new master cylinders are almost as cheap as the rebuild kits and come with a warrantee. Hope you don't mind "Made in China".

The booster requires a press set up to disassemble the two halves of the case. Once inside you have the diaphragm and seals and springs. I have done a couple, but would consider sending it out now.

20round

larry, do you know how to contact these guys?

Powershift

Yes.

For Lone Star just google the name for contact information. I would ask for Ken as he is the main guy and deals with us Corvette types. They advertise that they sell wholesale.........and they do to just about all the Corvette supply companies.......but they will work with us on special retail requests. Ken says he wants to keep us happy.........although he also says that is nearly impossible.

Same for Apple Hydraulics and White Post. Google is your friend. Apple and Lone Star will sleeve with stainless, whereas White Post prefers to use (or will only use) brass sleeves.

All three companies are top notch.

However, recently, most or all of the companies now state that DOT 5 brake fluid will void any warranty. Lone Star was bending these rules to help us guys, but may now be saying "no more warranty with DOT 5" I dunno anymore......just ask for their most recent thinking/policy.

DOT 3/4 is not bad at all if you flush your system every 4-5 years. If you were to try DOT 5, only buy from a MAJOR ESTABLISHED SOURCE. I buy SSBC (Stainless Steel Brake Corporation) DOT 5 and have for years with no issues. There are strong arguments from both sides about brake fluid quality and specs. Check our archives and previous post for more on this......one just a few weeks ago.

Larry

65GGvert

I had a leak in my original 65 style power brake master cylinder. I ordered the kit shown below, sanded out the chamber, replaced these parts and never had another problem.

boxster99t

Lone Star definitely sells to retail customers--that's where I bought new calipers from when I did my standard disk to power disk brake conversion on my 67 4 years ago.

On DOT 5 I could never get the passenger front caliper to quit seeping where the brake hose screws in and the MC was leaking down the rear; ended up sending all the calipers and MC I bought back to CSSB, Inc. and that's when I started over with Lone Star. I then used DOT 4 fluid (ATE which is the same I use in my Porsche)--yes you have to be careful about spillage but nothing new under the sun there. Flushed the fluid last summer at 3 years and will do that at 3 year intervals - I've flushed gallons of brake fluid from my days running HPDE's with Porsche club. And I have a Motive power bleeder, which makes flushing a one person job.