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Tidybuoy's Avatar
 
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What does a worn clutch throwout bearing sound like?

I seem to be hearing a transmission noise that sounds like a whistling sound or the sound that an old truck transmission makes. it's not the axles because the sound goes away if I engauge the clutch.

The are no shifting problems or clutch slipping. The trans is full of Swepco 201 which I changed last month.

Any advice would be great........Vern
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Vern

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Old 05-07-2012, 02:35 PM
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When you depress the clutch the fork pulls (or pushes) the pressure plate away from the spinning flywheel via the throwout bearing. This places a load on the bearings within the TO bearing assy and quiets them down.

I bet you have it nailed. Others should confirm.

Eidt: I remember it being a higher pitched sound on the ones I have experienced. Not a deep rumbling at all.
Old 05-07-2012, 02:41 PM
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Well, let's hope it lasts for a while because I have spent my whole allowance for this year.
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Vern

'74 911 Coupe - Silber Metalic (963-93), PMO ITB Injection and Electromotive Management
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'74 914 Targa - Light Gray 2.0
Old 05-07-2012, 03:32 PM
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More than sound how does it feel? does it feel gritty? if so it is time to swap but for a quick and cheap fix if you carefully spray down the port at side top of the bell housing, it may help lube it.

When I replaced mine it was so dry it was making a gritty clutch throw at the pedal.

click the pic:
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Old 05-07-2012, 08:40 PM
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Vern, I think I gave away my old TO bearing. If you need help with an engine drop and have a decent sized workspace, then I can give you a hand. I'd probably budget for a new TO bearing and pilot bearing. It's not that big of a job. If you can manage it, replace the engine seal too.
Old 05-07-2012, 11:23 PM
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Old 05-07-2012, 11:23 PM
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