I'm at a loss. My gen2 is becoming a pain in my a$$. I was losing clutch pressure (having to pump the pedal) and then completely lost it for good a couple of weeks ago, so I replaced my master and slave cylinders. Now I still have no pressure at all. I have taken everything apart, blew air through all the lines twice and still nothing! I even took both cylinders apart this time and both looked fine. I've blead the lines numerous times. Any ideas?
check the push rod play and freeplay adjust point on the clutch pedal. i had the same problem about week ago putting in a new clutch, i messed with the push rod and it actually gave me a little more pressure.
Does the slave cylinder piston/rod/clutch fork move any when you press on the clutch pedal? If so, you are off to a good start. The system can require a lot of bleeding to get out all the air, and get full travel on the slave cylinder!
Just checked again, and the slave isn't moving. Could it be a bad slave? I did take it apart and inspect it and it looked ok. Should I try returning it for a new one?
ditto to what toyotaspeed says, plus since you have messed with it, take part back and start fresh part, bleeding the clutch hydrolics on a Mr2 can often be a PITA getting all the air out.
Well, I bled and bled and bled today and made sure there was no air in the system. I then pushed on the slave while the wife pumped the pedal. The slave slowly built up pressure, so I removed it and had the shop order a replacement....so now I wait another few days.
Anyone know of a vacuum bleeding system?
master cylinder requires bench bleeding to be installed... if you did not do it prior to install and are trying to do it afterwards you will most likely be at a loss since you were forcing the master cylinder to operate dry and possible torn the piston seals inside.
I doubt the seals are torn since they have been coated with the required lithium grease. Can someone explain how I would bench bleed the master? I've searched the web, but am not finding any good info for anything similar to the MR2.
Bench bleeding, is bleeding the air out of the master cylinder when it is out of the car. Usually the cylinder is put into a vice, hoses connected, fluid added. Then the piston is moved until all the air is out of the master cylinder. The links below will give you a good idea of the process.
New slave installed, master bench bled, and still no pressure. The slave only moves when I hold pressure against it while someone else pumps the pedal. I'm taking the master in to get a new one.
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