New master cylinder, not pumping fluid while trying to bleed

Buggy · 12-10-2010, 06:17 PM

Yes, definitely bench bleed that master cylinder. You will fight with it forever and still not get the air out if you don't. Just disconnect your lines from the master cylinder and use the supplied plugs that the new one should have came with to plug the ports. Then just pump the pedal until the master cylinder begins to force fluid out past the plugs. Hook your brake lines back up and bleed them normally from there.

need RX7 · 12-10-2010, 08:42 PM

I'll bench bleed it first thing tomorrow. I just had to check to see if there was a lazy way out. I am an FC owner, after all

. Thanks for the input.

By the way, I made history today. I used one of these successfully. It actually removed my broken bleeder screw without breaking it off or mangling the remains. I was amazed, and quite relieved.

RETed · 12-10-2010, 09:51 PM

Mityvac is your friend.

-Ted

12-10-2010, 06:17 PM	#1
Buggy I've been Wankeled! Join Date: Apr 2010 Location: Mildmay, Ontario, Canada Posts: 260 Rep Power: 16	Yes, definitely bench bleed that master cylinder. You will fight with it forever and still not get the air out if you don't. Just disconnect your lines from the master cylinder and use the supplied plugs that the new one should have came with to plug the ports. Then just pump the pedal until the master cylinder begins to force fluid out past the plugs. Hook your brake lines back up and bleed them normally from there. __________________ 1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place 1974 Rx-4 all original 27,000 miles 1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place

12-10-2010, 08:42 PM	#2
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	I'll bench bleed it first thing tomorrow. I just had to check to see if there was a lazy way out. I am an FC owner, after all . Thanks for the input. By the way, I made history today. I used one of these successfully. It actually removed my broken bleeder screw without breaking it off or mangling the remains. I was amazed, and quite relieved. __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.