Thread: Master Cylinder
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Old 02-25-2008, 08:07 AM
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Re: Master Cylinder

With a 16 year old car and those symptoms, I'd get a master for it. When bleeding brakes, most people make the mistake of bottoming out the brake pedal. This pushes the master cylinder rubber cups past this ring of crud in the master bore and the cups wind up leaking.

Get a rebuilt or new master, bench bleed it, install it and bleed each caliper. I use this method of bench bleeding and it always works. I lock an ear of the master in a bench vise, fill it up with fluid and leave the cap off. I press two fingers over the brake line holes in the side and pump the master with a screwdriver. You'll see air bubbles come up through the fluid in the reservoirs, when the bubbles stop, the master is bled. Put the cap on and install it.

Also, as a wild thought, I've seen calipers installed on the WRONG sides of the car before. This puts the bleeder screw down instead of up.

Bob
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