1985-1998 [Subscribe to Daily Digest] |
As long as you have the Motive Power Bleeder, or some similar product, replacing the master is very simple. Be ABSOLUTELY POSITIVE that you purchase DOT 4 hydraulic fluid. Here's the procedure:
Replacing the master:
1. Get a large piece of cardboard to cover the driver's side carpet.
2. The foot panel covers the pedal assemblies - remove this by unscrewing the 7 or so plastic screw things.
3. If you have a clamp, use that on the clutch supply hose. It's a black flexible hose that runs from the reservoir, through the firewall area, to the master. Otherwise, skip to the next step.
4. Unscrew the hose clamp from the flexible line, and allow the fluid to drain. Hydraulic fluid damages everything it touches, to try to avoid getting this on the carpet, your clothing, the body of the car, etc.
5. Using a 13mm open-ended wrench, carefully unscrew the hard line from the bottom of the master. Fluid will drip.
6. Find the connection point between the master and the pedal. Remove the clip using needle-nose pliers or a flathead screwdriver. Withdraw the pin, and free the U-shaped thing from the pedal.
7. Look for the two mounting bolts that secure the master to the car. I think they're 13mm as well. Unbolt those and remove the master cylinder, taking care not to damage the hard line. You might consider using plastic wrap and a rubber band to keep junk out of the opening.
8. Reverse the procedure using the new cylinder.
Bleeding the clutch:
1. Get the power bleeder; it's the best tool in the world, and WELL worth the $50. eeuro has it.
2. Fill the brake/clutch reservoir with DOT 4 until it reaches just below the top. Empty the rest into the bleeder, and screw the bleed cap onto the reservoir.
3. Attach some extra hose or a hydraulic fluid catcher bottle to the nipple on the slave. Facing the engine from the front of the car, look at the transmission. The bleed nipple uses a 13mm wrench.
4. Pressurize to about 10 psi.
5. Open the bleed screw SLIGHTLY and wait for fluid. You'll see lots of bubbles.
6. Wait for the bubbles to disappear, then depressurize the system by unscrewing the pump from the power bleeder.
7. Use your hand to pump the clutch until you don't notice any more pressure being built. Make sure you push the pedal to the floor every time.
8. Repeat the process, checking the pedal frequently, until the power bleeder is almost empty. By this time, all the air should be gone.
9. Open the bleed screw and, while closely monitoring the reservoir, push fluid through the system until it's about an 1.5 inches below the top of the reservoir.
10. Close the bleed screw and depressuize the system.
11. You're done.
WARNING: Never pump the clutch while the system is pressurized - this will damage the seal in the master cylinder and all this work will be futile.
Enjoy!
-Ben
posted by 216.47.134...
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