Clutch Rattle

[devo]

Hi guys, I have just recently had a sponsors clutch installed in my bf2 turbo sedan, I wont name the clutch or sponsor at the moment because I dont want to bad mouth them only to have the problem be something else.

With the clutch installed the gearbox rattles quite loud and can be heard easily from outside the car, and if you turn aircon on the sound get almost twice as loud. Push foot on the clutch and the sound goes away completely.

I just had a stock clutch put back in (since I lice with a mechanic so I dont pay labour for this mucking around) and the sound is completely gone.

Clutch is single plate

Any light you can shed on this would be helpful.

[turbo.vixen]

its completely normal, its called the throw out bearing and we all have it, was it a mal woods clutch

[dule]

But how does that explain the noise going away when he installed the old clutch back in. Doesn't sound very normal to me.

[turbo.vixen]

different throw out bearing, my standard clutch had no noise, but when I put in the option 3 it was there.

use the search button and see how many people have asked this question and you will be surprised that everyone has the same noise

[dashturbo]

definitely not the throw out bearing, that would be noisy, when your foot is on the clutch (when the throw out bearing is engaged. Probably got something to do with the instalation of the clutch (loose bolt?) or one of the small springs used to smooth take up it broken or loose... you can see the springs in the picture below..

their are two ideas anyway.

[Ralph Wiggum]

was the flywheel changes when the clutches where swapped back? The lightened flywheels supplied with most aftermarket clutches are noiser than stock because the dont have the mass to absorb as much engine/gearbox noise/resonace, they are also machined into a "U" shape which IMHO turns them into a nice speaker for any noise generated.

Luke

[Mr Man]

its perfectly normal, I think its the rollover noise from the gearbox you'll be hearing.. did you fit the alloy CSC too?

[devo]

wow completely forgot I posted this here... its a Mal Wood stage 3+ clutch and flywheel. The throw out bearing was noisy to begin with before the clutch installed, it was replaced underwarrenty and I had my clutch installed at the same time, noise was worse, put a stock clutch and flywheel back in and noise it gone...

The noise the clutch made is very loud, doesnt sound like anything you would consider "acceptable". Like sitting at lights I would put my foot on the clutch rather than not so my car doesnt sound like its about to rattle to pieces at the lights. Also taking off with minimal revs the noise gets REALLY loud.