clutch slipping during track days

Rusty · 11-16-2017, 06:48 PM

The most common causes for a clutch to slip. Now you have to play Diick Tracey and find out the real cause.

1. Worn clutch disc. Disc too thin for proper pressure between the flywheel and pressure plate.

2. Weak pressure plate springs. Could be from overheating from too much slipping the clutch pedal or linkage adjustable.

3. Leaking slave cylinder. Fluid on disc and pressure plate.

4. Mis-adjusted linkage. Not allowing the slave cylinder to fully retract. And causing the unit to overheat.

5. Hot spots on the flywheel and pressure from riding the clutch pedal, and from the things listed above.

6. Mis-match parts.

7. Driver error. Riding the clutch pedal. The hardest one to prove. Everyone will denied it.

These are the most common causes that I have run into over the years.

Elmo370z · 11-26-2017, 06:46 PM

Quote:

Originally Posted by street2soul

bad clutch fluid / CSC shouldn't cause clutch to slip because since pressureplate is mechanically back to it's original position which is engaged to the flywheel regardless when pedal is not pressed. fluid/csc should only contribute to clutch disengaging from flywheel so in the case of bad fluid/csc/mc, you would only have problem disengaging. my guess is that pressure plate is bad, or clutch is unfortunately burnt. i've had bad pressure plate which the teeth ended breaking off, and had the same symptom of slipping before eventual failure.

Caused mine to slip. Installed new twin disk and looked over the clutch and it was perfectly fine, no hot spots on the clutch or fly wheel

street2soul · 11-27-2017, 02:12 AM

Quote:

Originally Posted by Elmo370z

Caused mine to slip. Installed new twin disk and looked over the clutch and it was perfectly fine, no hot spots on the clutch or fly wheel

Hmm..

B&W_Evader · 11-27-2017, 09:35 AM

The winner is... #7

cossie1600 · 12-02-2017, 01:27 AM

I was able to work around it by swapping the clutch fluid (I didn't do a full bleed, I just suck out the reservoir and put in high temp castrol fluid), problem stopped.

11-16-2017, 06:48 PM	#31 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,217 Drives: 2011 Nismo GM 6M Rep Power: 2684438	The most common causes for a clutch to slip. Now you have to play Diick Tracey and find out the real cause. 1. Worn clutch disc. Disc too thin for proper pressure between the flywheel and pressure plate. 2. Weak pressure plate springs. Could be from overheating from too much slipping the clutch pedal or linkage adjustable. 3. Leaking slave cylinder. Fluid on disc and pressure plate. 4. Mis-adjusted linkage. Not allowing the slave cylinder to fully retract. And causing the unit to overheat. 5. Hot spots on the flywheel and pressure from riding the clutch pedal, and from the things listed above. 6. Mis-match parts. 7. Driver error. Riding the clutch pedal. The hardest one to prove. Everyone will denied it. These are the most common causes that I have run into over the years. B&W_Evader, Hotrodz, Elmo370z and 1 others like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

11-27-2017, 09:35 AM	#34 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 387	The winner is... #7 osbornsm and Rusty like this. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

12-02-2017, 01:27 AM	#35 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	I was able to work around it by swapping the clutch fluid (I didn't do a full bleed, I just suck out the reservoir and put in high temp castrol fluid), problem stopped. Hotrodz likes this.

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