zf noise.

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Jul 18, 2002 | 07:16 AM

devilfish

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From: Sweden/Stockholm

zf noise.

From the ZF I noticed that sometime I have what sounds like "rocks in a can" sound. If I have the car in neutral and reeve the engine, I can hear the sound when the rpm drops. Is this normal ZF sound? Its not loud its just there sometimes..
And I have the dualm fw.

Regards

Jul 18, 2002 | 09:36 AM

Scoob

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From: Life's tough, wear a helmet.

Re: zf noise. (devilfish)

Probably normal. Is the sound random or rhythmic?

ZF is notoriously loud, even with the dual mass fw.

Jul 18, 2002 | 09:57 AM

devilfish

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Re: zf noise. (Scoob)

the sound is random.. :/

Jul 18, 2002 | 11:02 AM

devilfish

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Re: zf noise. (devilfish)

and got a new question regarding zf sounds.

It is most noticeable when the car is coasting and when I gently touch and release the throttle I can hear a clunk. At about 30-40 km/h, and often in second gear. Is this also normal?

Regards

Jul 18, 2002 | 12:10 PM

MarkBychowski

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From: Austin, TX

Re: zf noise. (devilfish)

Are you sure the clunk is coming from the trans? Usually a clunk while changing from power to coast is coming from the differential (slack in the gears). I can't recall ever hearing that from my trans, though (not saying it isn't possible).

Jul 18, 2002 | 12:26 PM

devilfish

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Re: zf noise. (MarkBychowski)

hmm i think its from the trans. Cause I can feel it in the stick. But that could also be from the drivetrain. Hard to tell... :/

Jul 18, 2002 | 12:28 PM

devilfish

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From: Sweden/Stockholm

Re: zf noise. (devilfish)

is gear slack normal?

Jul 18, 2002 | 05:14 PM

tommelton

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From: Douglasville GA

Re: zf noise. (devilfish)

It could be that your dualmass flywheel is losing its dampning ability. Perhaps the fluid that is sealed inbetween the masses is leaking. Once it is gone, the two masses can rotate easily, thus losing the noise dampning ability.

-Tom