How do I bleed a clutch master cylinder?

Answer by  mechtech74 (692)

Press one end of a SNUG vacuum tube over the slave bleeder, the other end submerged in a jar of brake fluid. Put jar under the vehicle near the slave cylinder, and SLIGHTLY loosen the bleeder at the slave. Pump the clutch, keeping the M/C reservoir full, until air bubbling in the jar stops. Tighten the slave bleeder, remove tube.

Answer by  Amber40 (24961)

The traditional way involves adding new fluid to the reservoir while a friend pumps the breaks and you open the bleeder screws until there are no bubbles. They now make reverse bleed kits that make it much easier.

Answer by  kingmike (27)

clamp body of master cylinder in vise, connect tubes from outlets so that they are in fluid resevoir ,make sure ends of tubing extends below level of brake fluid, at firewall end of master cylinder,use a dowel to push valve in,do this until no air appears in the fluid,master is now ready to install

Answer by  redmamaof5 (188)

When you bleed you typically have to pump the clutch pedal a ton. Like when we did the truck it was about 300 times of constant pumping the clutch. Eventually you will feel the pressure of the clutch being completly primed. Just Pump it over and over until it is primed.

Answer by  worker4275 (175)

The best way to bleed the master cylinder is make sure your foot is pressed hard on the clutch and floored.