The damn clutch is too the floor again. Had the car for 3 days and it started
06-20-2006, 10:15 AM
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The damn clutch is too the floor again. Had the car for 3 days and it started
too feel a little strange this morning. Dropped the kids off and noticed that I was having to push the pedal farther down to engage the clutch. It started going downhill fast from there. Was able to get into nuetral and coast into a parking lot. Called the service manager who personally replaced the slave cylinder and they sent a flatbed to come and get it. Any idea what in the world could be going on. They have replaced the clutch and the slave cyinder. I did not see anything leaking on the ground. Is there a reservoir for the clutch or does it share the brake reservoir?
Lonnie
Lonnie
06-20-2006, 10:25 AM
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So there is a slave cylinder and a master cylinder?
Where is the master cylinder located? Does it share the brake master cylinder? I checked the fluid level and it was kinda overfull. (To the top of the screen filter)
06-20-2006, 11:58 AM
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No it does not share the brake master! The problem is bleeding the system.
Hydraulics are simple. Picture a medical syringe: You have a cylinder and a plunger. On the 'master' cylinder, you have a cylinder and a plunger. When you push the clutch pedel, it pushes the plunger, which pushes the hydraulic fluid. At the clutch, you have another cylinder and a plunger (the 'slave' cylinder), connected by a line (small diameter tubing) to the master cylinder. The pushed hydraulic fluid then in turn pushes the slave cylinder plunger, which pushes a lever on the clutch pressure plate, which releases the clutch pressure that squeezes the friction disk sandwiched between the engine flywheel face and the pressure plate. It really is a simple system. However, for it to work right, it has to have all of the air out of the system, and only hydraulic fluid in it. Air compresses, fluid does not. If there is air in there, then it compresses, then it doesn't move the hydraulic fluid to move the slave cylinder plunger...
9 out of 10 times bleeding all of the air out of any clutch system is a real PITA. It can be a real bear! Even on a brand new master cylinder, if they are pumping the clutch pedal to bleed the air out, on the return stroke it can suck more air in around the seals. The other problem is that the master cylinder and resevoire are located higher up than the slave cylinder, and to bleed you crack the bleeder bolt open at the slave cylinder. Ever try to push a bubble down? Anyway, that's the problem.
9 out of 10 times bleeding all of the air out of any clutch system is a real PITA. It can be a real bear! Even on a brand new master cylinder, if they are pumping the clutch pedal to bleed the air out, on the return stroke it can suck more air in around the seals. The other problem is that the master cylinder and resevoire are located higher up than the slave cylinder, and to bleed you crack the bleeder bolt open at the slave cylinder. Ever try to push a bubble down? Anyway, that's the problem.
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