High clutch engagement with RJM?

Cranberry · 09-26-2017, 08:37 AM

Quote:

Originally Posted by PharmDZ

Hmmm... stupid question - but the release bearing - is that the pilot bearing, or something else? I replaced the pilot bearing when putting the new clutch in, and the trans was brand new. Unless it's something attached to the engine that I didn't touch then it shouldn't necessarily be this, but thank you for offering up other options/issues to check!

also forgot to mention, the release bearing is not the pilot bearing. We replaced the pilot right form the beginning and there was still slipping issues

Joe@ZSpeed · 09-26-2017, 08:56 AM

Release bearing pushes on the clutch pressure plate fingers to release the clutch, Unless whatever is pushing the bearing (slave cylinder) is sticking really bad the release bearing really wont cause a clutch to slip. If it did it would be a REALLY rare occurrence or most likely a poor install and it wasn't centered correctly.
I have however seen this locally with a cheapo/china aftermarket CSC slave that had a plastic guide tube and the bearing was getting jammed on it upon release and would not allow the bearing to retract all the way.

High engagement is one thing, High engagement by itself wont hurt anything and can be normal depending on clutch/type design, If it has high engagement AND is slipping there is a problem.

daj349 · 09-26-2017, 09:28 AM

Sounds like the pedal is hitting the top switch and not letting the master cylinder fully open up. The switch is probably set too low and/or the clevis is set too far away from the master. The clevis should be able to jiggle when the pedal is raised. The clevis should stop the pedal movement at fully open. Not the switch.

Joe@ZSpeed · 09-26-2017, 10:09 AM

Quote:

Originally Posted by daj349

Sounds like the pedal is hitting the top switch and not letting the master cylinder fully open up. The switch is probably set too low and/or the clevis is set too far away from the master. The clevis should be able to jiggle when the pedal is raised. The clevis should stop the pedal movement at fully open. Not the switch.

This is correct info!

09-26-2017, 08:56 AM	#17 (permalink)
Joe@ZSpeed The370Z.com Sponsor Join Date: Mar 2011 Location: Ohio Posts: 1,304 Drives: Nissan Rep Power: 342999	Release bearing pushes on the clutch pressure plate fingers to release the clutch, Unless whatever is pushing the bearing (slave cylinder) is sticking really bad the release bearing really wont cause a clutch to slip. If it did it would be a REALLY rare occurrence or most likely a poor install and it wasn't centered correctly. I have however seen this locally with a cheapo/china aftermarket CSC slave that had a plastic guide tube and the bearing was getting jammed on it upon release and would not allow the bearing to retract all the way. High engagement is one thing, High engagement by itself wont hurt anything and can be normal depending on clutch/type design, If it has high engagement AND is slipping there is a problem. __________________ Phone *937-506-7224* E-Mail Sales@Zspeed.com www.ZSPEED.com

09-26-2017, 09:28 AM	#18 (permalink)
daj349 Base Member Join Date: Nov 2014 Location: Nashville, TN Posts: 49 Drives: '12 370Z SprtTour M6 Rep Power: 10	Sounds like the pedal is hitting the top switch and not letting the master cylinder fully open up. The switch is probably set too low and/or the clevis is set too far away from the master. The clevis should be able to jiggle when the pedal is raised. The clevis should stop the pedal movement at fully open. Not the switch. Joe@ZSpeed likes this. __________________ K&N Typhoon \| CNT HFC \| Berk CBE \| Stance True-Types \| UpRev

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