just bought a new brake master cyclinder. i am not sure how to bleed brakes after i have replaced the old brake master cyclinder? any suggestions on how, and what i need to do after i have put new brake master cyclinder on would be nice. thanks in advance

 

The Factory Service Manuals for all years of RX-7 (and many other rotary cars) can be downloaded for free here: Foxed.ca - Mazda RX-7 Manuals . They contain all common service information information and more, and are an essential tool for any sort of service work that needs to be performed on these cars.

Additionally, the Haynes service manual for the 1986 thru 1991 RX-7 (both turbo and NA) can be found at most local auto parts stores or purchased from any good bookstore (ISBN number 1 56392 007 7). It is only about $25 and is a great quick reference for things like this. Not only does it contain most of the information in the FSM condensed into an easy to read format, but it includes full wiring diagrams as well.

These manuals will answer 99% of service related questions for the car and if you intend to do your own repair work, you will need at least one of them. Preferably both, since the FSM is a free download. The Haynes is a good quick reference covering 99% of questions, while the FSMs show complete and detailed procedures.

 

First, you must bench bleed the master cylinder before you put it in the car. This involves using a dowel rod and pushing in the cylinder while it's full of fluid. This helps you avoid doing A LOT more work than if you were to put it on without doing it. Once fluid starts flowing out of the holes, then you can put it on and bleed the brakes like normal. Make sure your threads on your lines are clean to keep from possibly stripping and be sure you fully screw in the bottom line. I thought mine was in at first then relized a week later it wasn't fully on. Mines an S5, so yours might not have that, not sure. Also, start with the furthest to the nearest to the master cylinder when bleeding. I think I did RR LR RF LF in that order. Once the air is all bled out, move on to the next one.

 

i just put on new master cyclinder, installation went well. i made sure to bench bleed it before i put it on and that was a good thing haha, now all i need to do is bleedthe brakes... when i can find some time is the question. thanks for all the help

 

if you use a gatorade bottle with a hole drilled through the cap, with a clear hose through it and put it on the bleeder while pumping the pedal, make sure you put fluid in the bottle so the bleeder dosnt suck air back in