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clutch slipping problems
I hope you guys can help. To start with some history. I did a 5 speed swap and put everything in to spec. The new tranny and clutch appeared to operate properly. Upon further driving (stop and go) the clutch started to slip as more stop and go driving would heat up the car. I could feel that the clutch pedal pushed (felt) different right before it started slipping. We bled the system numerous times and even built a custom plate for the master cylinder because it would flex the very thin firewall and adjusted the master cylinder shaft. Everything so far seemed to help the slipping to some extent. It would take a little longer for the clutch to start slipping. It would slip and then if you drove it some more it would stop slipping. I did notice that when the car was cool the slave cylinder would be loose from the relase arm. You could actually move the arm around a little bit, but after driving it would be tight against the arm. Also, the clutch felt like it was a little notchey, so we replaced the slave, rerouted the hydrolic lines (to make it neater), bled again, and went for a test drive. It took forever for it to start slipping and when it did it wasn't too bad. It always starts to slip usually in 3rd or 4th gear and then progress to the lower gears. If you take the car out of stop and go driving and head to the highway, the slipping seems to go away for awile untill you heat it up again. This leads me to believe its heat related. How does the hydrolic fluid perform related to heat? Also, right before it starts to slip I can instantly tell by the clutch pedal feel. It goes to the floor differently, hard to explain, just has a different feel. This would lead me to believe that its a hydrolic issue, not a clutch issue. Everything we've done so far has seemed to aid in taking longer for the clutch to start slipping so that would also lead me to think that its a hydrolic issue. I will try and ajust the clutch pedal some more to see if that helps.
MAIN POINTS:
no apparent leaks in the system and the fluid level has stayed constant.. The slipping starts in the higher gears first than goes to the other 5-4-3-2-1 in this order.. Slips sooner while driving in stop and go setting and takes longer for more open road/some stop and go driving..Everything we've done to this point has helped lengthen the time it takes to slip..
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