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Join Date: Oct 2004
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Clutch wear: In-car wear measurement possible?

Is there any way to roughly determine how much life is left on a 915 clutch disk while it is still in the car, such as via an inspection hole in the transmission or by remaining clutch cable adjustment? Or do I just wait for the day and hope I'm not stuck in an inconvenient place. Is it a "soft" failure such that I get some warning and can limp home if I don't use too much torque?

Old 02-04-2015, 08:00 AM
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Join Date: Oct 2006
Location: MYR S.C.
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it will start to slip when you are in a gear like 3rd 4th ot 5th at low RPM and floor it. then it will get worse. you will be able to drive it for quite a while if you are easy on it. once it gets really bad it can damage the flywheel.
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Old 02-04-2015, 08:04 AM
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When I bought my 86 I never felt the clutch slipping. However upon separating the engine from the transmission I found that the clutch disc was worn out to the rivets and had started scratching the flywheel. I was fortunate enough to be able to have the flywheel resurfaced.
So if you have any doubts about your clutch I would suggest dropping the engine and assess the situation. New flywheels are expensive...!

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86 Porsche 911 Cabriolet, 2011 BMW 1200RT, 03 Saab 93 Cabriolet, 06 MB E350 Estate
Old 02-04-2015, 08:48 AM
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