clutch slipping
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Junior Member
Joined: Mar 2005
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clutch slipping
I have a '91 and my clutch has started to slip when i try to accelerate. I wanted to adjust the the free play in the clutch, (it catches near the top now), however i assume there is no adjustment since it is hydraulic. Looking through the caps on the bottom of the tranny, it looks like the clutch pads are in good condition, so i think something else is causing slippage, like the throw out bearing. any ideas, especially if it doesnt require dropping the tranny? thanks
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Joined: Feb 1999
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From: Kissimmee, Florida, United States
A visual inspection, especially one though an inspection plate, is no way tell the condition.
How I always checked is this:
Drive the vehicle normally untill it is fully warmed up.
Start from a dead stop, shift to second gear, drop speed to about 10 mph then floor it. Hold the trottle, do not shift out of second. Don't over rev either.
Listen to the engine as it builds power and torque.
If the clutch is bad the engine torque will overcome the clutch and it'll slip. You'll know it when it does.
You are correct, there is no adjustment on a hydraulic clutch. It's self adjusting, like disc brakes.
Where the clutch grabs is normal. Even with a new clutch.
No, a bad thow out bearing will not cause a clutch to slip. It will cause hard shifting, gear grinding (especially into reverse), and a constant squeeling.
If the clutch is bad, drop the trans and go for it. No part of a clutch is replaceable without dropping the trans. My advice is to install a Centerforce brand assembly. It may be a bit expensive, but you won't regret it. Don't forget to replace the throw out bearing too. And if possible the pilot bearing too.
One other thing, when you do tear it apart, remove the flywheel and have it resurfaced. Just like brakes, the clutch needs a good surface to work with. Roughing it up by hand is no good. It must be machined.
And don't forget to use a good torque wrench when putting it back together. It is very important to do this. Especially with the flywheel. Every bolt you remove on a vehicle has a torque value. Put it back together properly and you'll never have to worry.
How I always checked is this:
Drive the vehicle normally untill it is fully warmed up.
Start from a dead stop, shift to second gear, drop speed to about 10 mph then floor it. Hold the trottle, do not shift out of second. Don't over rev either.
Listen to the engine as it builds power and torque.
If the clutch is bad the engine torque will overcome the clutch and it'll slip. You'll know it when it does.
You are correct, there is no adjustment on a hydraulic clutch. It's self adjusting, like disc brakes.
Where the clutch grabs is normal. Even with a new clutch.
No, a bad thow out bearing will not cause a clutch to slip. It will cause hard shifting, gear grinding (especially into reverse), and a constant squeeling.
If the clutch is bad, drop the trans and go for it. No part of a clutch is replaceable without dropping the trans. My advice is to install a Centerforce brand assembly. It may be a bit expensive, but you won't regret it. Don't forget to replace the throw out bearing too. And if possible the pilot bearing too.
One other thing, when you do tear it apart, remove the flywheel and have it resurfaced. Just like brakes, the clutch needs a good surface to work with. Roughing it up by hand is no good. It must be machined.
And don't forget to use a good torque wrench when putting it back together. It is very important to do this. Especially with the flywheel. Every bolt you remove on a vehicle has a torque value. Put it back together properly and you'll never have to worry.
Last edited by Iggy; Mar 25, 2005 at 06:36 AM.