Clutch slippage
Thread Starter
Racer
Joined: Aug 2004
Posts: 252
Likes: 0
From: Corpus Christi TX
Clutch slippage
Ok, 1989 ZF 6spd. Clutch will sometimes slip in 6th, sometimes 5th at lower RPMs when moderate throttle is applied. Doesn't slip at all in lower gears. Clutch fluid was checked and topped off after this was noticed.
So tell it to me straight, how bad is it? Do you think I'm looking at a leaking hydraulic cylinder, or is it something perhaps more promising?
So tell it to me straight, how bad is it? Do you think I'm looking at a leaking hydraulic cylinder, or is it something perhaps more promising?
Race Director
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
What happens when you nail it in 3rd gear? If the rpms go up but not the speed, it's time for a clutch looksee. One cause of clutch slippage is an oil leak. Check it out. If your clutch is contaminated with oil, it's toast. Change it quick or you'll ruin the flywheel, too.
Le Mans Master
Joined: May 2005
Posts: 7,348
Likes: 2,272
From: Central Maryland
I'd say it's almost certain that you'll be replacing that clutch very soon. Slippage in upper gears is the classic symptom of a failing clutch.
Forget about hydraulic issues. They can cause the clutch to not disengage, but they won't ordinarily interfere with the engagement of the clutch.
Be well,
SJW
Forget about hydraulic issues. They can cause the clutch to not disengage, but they won't ordinarily interfere with the engagement of the clutch.
Be well,
SJW
Race Director
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
Originally Posted by tivette
Yup - that's the classic failure - starts in the top gears and works its way down...Go with Centerforce dual friction. I just did and am very pleased.
