Can I use the brake master cylender from an rx7 on an rx3? Who has torn down the master cylender on an rx 3 / how in he.. do I get the front wheel spring and piston out? merinating in PB Blaster now.
bob

 

Rebuild kits are available, as are rebuilt MC's.

What year is your RX3? There are at least 2 different sizes listed for them. Most references give me a 13/16 bore. My 73 RX3 has a 7/8 bore.

Do you have any plans for brake upgrades? If so now is a good time to think about incresing the MC capacity. I'm changing over to a Mazda 929 MC with 1 inch bore. I've also found a replacement vacuum booster to complete the package.

 

Speaking of brakes, I picked a set of 82 strut housing and spindle for $25 at a local junkyard. Rene (61620B) extended the top portion of the FB housing to match the RX-3 using a blown KYB. He did a very good job.

I tried to install a new set of KONIs, it wont slide in. It turned out that the KONIs are slightly thicker than KYB.