Clutch slipping cause???

[NSXsenior]

I have a odd clutch slipping issue. Under normal acceleration and shifting through the gears (around 3,000 RPMs) no apparent slippage. But, fast shifting 1st to 2nd and 2nd to 3rd at 5,000 to 6,000 RPMs the clutch slips. I can tell because the RPM's jump up too quickly and I can smell the disc burn.

Any idea what would cause this? It's 1991 with 81,000 m with the "clutch assy" changed at 65,000 m according to the Acura dealer service documentataion I received when I purchase the NSX 1-1/2 years ago.

Any suggestion on a cause (or solution) would be appreciated.

 

[RON98]

usually it means clutch friciton material is getting worn out.

 

[Larry Bastanza]

First thing is to make 100% sure your left foot is completely off the clutch before applying throttle. Assuming you are doing that, the clutch sure sounds worn to me, as Rob mentions.

Who drove the car the 16K miles with this clutch? This is pre-mature wear, but clutch wear is VERY dependent on the driver.

Regards,
LarryB

 

[NSXsenior]

Thanks for the replys. I sure don't like the sound of worn clutch friction material. Is it possible the clutch slave cylinder or clutch master cylinder be slow in responding to engaging when rapid shifting????

 

[Larry Bastanza]

Typically hydraulic issues (clutch master or slave) cause "disengagement" problems, like grinding, rather then slipping. By all means, check your fluid level for the clutch master.

Also remember the 5K-6K RPM range offers way more power then at 3K, so it the clutch is worn, that is where it will show up.

HTH,
LarryB

 

[I Grok NSX]

Also remember the 5K-6K RPM range offers way more power then at 3K, so it the clutch is worn, that is where it will show up.

HTH,
LarryB

Yep....my clutch would start to slip (chatter) at around 6000 rpm.

 

[Chris NSX]

I have a odd clutch slipping issue. Under normal acceleration and shifting through the gears (around 3,000 RPMs) no apparent slippage. But, fast shifting 1st to 2nd and 2nd to 3rd at 5,000 to 6,000 RPMs the clutch slips. I can tell because the RPM's jump up too quickly and I can smell the disc burn.

Any idea what would cause this? It's 1991 with 81,000 m with the "clutch assy" changed at 65,000 m according to the Acura dealer service documentataion I received when I purchase the NSX 1-1/2 years ago.

Any suggestion on a cause (or solution) would be appreciated.

This can cause a clutch to start slipping with 16,000 miles.
<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/IY9z2mcanag&rel=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/IY9z2mcanag&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

 

[MCM]

Lots of skill their............

 

[NSXsenior]

For Chris NSX & MCM, perhaps I should clarify that I have logged only 2,000 of the 16,000 miles since the clutch assy was changed. And the rapid shifting at high RPM's is an occasional indulgence that I believe we all partake in.

 

[RON98]

Hi NSXsenior

your high rpm indulgence will have minimal affect on the clutch.

Rapid shifting is acturally better for the clutch then stop and go.

when you rapid shift, you drop the clutch quicky so there is little time for the friction material (FM) on the clutch disk to slip thus getting worn down.

the worst for clutches if your in first gear, starting off and your RPM is too high and you SLLLOOOOWLY let out the clutch to prevent a jirky start. Even everyday driving where you try to get your car to drive smooth like an automatic causes increased clutch wear.

any time the clutch slips or your foot is not completely off the clutch peddle is when the clutch is getting worn down. its acturally better to let go of the clutch as fast as you can and so the FM can mate with the flywheel and be done with the slipping. you'l get a little jirky start in first but its no biggy.

the clutch can last 80K with care, or .1 mile with abuse.

the easiest way to destory a perfectly new clutch with 0 milage is get your car up to redline, drop the clutch while you have some 285 tires on the back.

your clutch will probably instantly burn up and the FM will turn to glass (glaze) and you'll need a new clutch.

it sucks that under your ownership, only 2000 miles was put on the clutch but its hard to judge how the previous owner drove the car.

Warm regards
Rob:smile:

 

[MCM]

I was commenting on the video clip, not you/your clutch.:redface:

If it slips, replace it. As far the cause, impossible to tell as you do not know its history. Inspection during removal might reveal a clue to the cause?
Or just rack it up tp the PO riding the clutch, burnouts, etc........

 

[CB169]

This can cause a clutch to start slipping with 16,000 miles.
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Yeah, if u dont know what ur doing, 4 years of countless burnouts, glove box full of 1/4 mile time slips, and lots road racing and still works like new, what kills a clutch is lots of stop and go traffic and pulling a car in and out of a garage or trailer (constantly riding first gear)