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Very Bad Noise

Posted: Sat May 22, 2010 3:50 pm
by Daz666
Hi

I've just come to start my m20 325 for the first time since January and there is a really loud high pitch squeal coming from what seams to be the centre of the engine. It seams to turn over ok just has this constant squeal. It does not seam to change pitch with increasing the revs slightly. It had an oil change in Jan so has been sat with clean oil in it.

Any thoughts on my vauge description?

Cheers

Daz

Posted: Sat May 22, 2010 5:58 pm
by weed1
worn out, dry, stiff, accessory drive belt(s).

m

Re:

Posted: Sat May 22, 2010 9:01 pm
by bmw9818
timing/acc belt

Re:

Posted: Sat May 22, 2010 9:03 pm
by sihooker
With the engine running, drizzle a little clean water onto the belts. If that's your problem, the noise will temporarily lessen or disappear.

Re:

Posted: Sun May 23, 2010 12:39 am
by gareth
sihooker wrote:With the engine running, drizzle a little clean water onto the belts. If that's your problem, the noise will temporarily lessen or disappear.
...keeping your face out of the way unless you want a shower :)

Re:

Posted: Sun May 23, 2010 9:35 am
by psychochild187
gareth wrote:
sihooker wrote:With the engine running, drizzle a little clean water onto the belts. If that's your problem, the noise will temporarily lessen or disappear.
...keeping your face out of the way unless you want a shower :)
who hasnt done this the first time round lol

Re:

Posted: Sun May 23, 2010 10:26 am
by gareth
...the voice of experience! :)

Posted: Sun May 23, 2010 5:44 pm
by Daz666
Thanks very much everyone, it was the power stearing belt, the noise must have been coming from the crank pulley and travelled through the block.

Cheers :D