Bench Bleeding my Master Cylinder and...

[TF360]

Bench bleeding a new master cylinder, and I used a new push rod to push it in and out.. It has a little rubber tip on the end, and I don't want to use this rod. It's for another car. Anyway, the rod is now stuck inside the hole in the back of the master and I can't pull it out. Tried to take the little C-clip off, but that didn't help. Pulled really hard, and it won't come out. Any ideas???

 

[MDchanic]

That little sucker can really stick in there. Great design, really – a lot of bang for the buck from a tiny piece of rubber.

When you disassemble it normally, you loosen up the M/C attachment nuts, shim out the M/C from the firewall a bit, then go inside and give the brake pedal a HARD pull backward to dislodge it.

In your case, you'll have to create a similar system, or possibly install it in a car, shimmed-out, and use the brake pedal to hammer it out. That may actually be the easiest thing.

I usually just use the handle of a hammer to bench bleed. Anything that will fit in the hole will work fine, and I prefer to use something non-marring.

– Eric

 

[remytherat]

Put the master in a vice, and put a very long screwdriver through the eye of the pushrod. Then give it a yank.

 

[Murray]

Put the rod in the vise and leave the M/C hanging. With big screwdriver, ply outwardly on the back piston. This will give you the leverage to separate the piston from the rod.

 

[dano]

What remytherat and Murray said. Get a good run at it.