New master cylinder, not pumping fluid while trying to bleed
 

I replaced my master cylinder today, and replaced all the bleeder screws with Russell Speed Bleeders. I topped off the master cylinder reservoir and tried pumping the brakes with the rear passenger bleeder open, nothing came out, no air or fluid. I tried opening all the bleeders and pumping away on the brake pedal, still nothing out of any of the bleeders after a few minutes. The level in the reservoir doesn't seem to be going down.

Ya need to bench bleed it first.

Is it 100% necessary? If I sit there and pump the pedal for a long time and attempt to bleed the calipers normally, will it eventually work itself out?

Seriously, you need to bench bleed it.

Since it is in the car you can do it there. Remove the hardlines and have someone be the spotter for bubbles and redo it. Of course, you still have to bleed all four corners.

This is why I bought a Pressure Bleeder. Takes 5 minutes now.

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.

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 :lol:. 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.

Mityvac is your friend. :)


-Ted