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  #1  
Old 19th-April-2007, 23:05
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Default fan belt squeal

i replaced the fan belt a while back, and it was squealing like a pig, so i adjusted it and it's a bit quieter but still makes a noise, the belt tension seems to be as recommended in the haynes book, i don't want to over tighten it, any ideas ?
thanks
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Old 19th-April-2007, 23:20
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Default Re: fan belt squeal

sounds like pullies out of line. seen something about this on previous threads check it out. good luck. Beni
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Old 20th-April-2007, 01:03
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Default Re: fan belt squeal

Have you got a cheapo belt?
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Old 20th-April-2007, 01:55
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Default Re: fan belt squeal

Quote:
Originally Posted by GRUNT View Post
Have you got a cheapo belt?
it was a cheap one, i thought a belt was a belt, when i went to get it from the shop the guy told me he only had one that was 25mm too long ( very 'kin helpful) and he wanted 12 quid, went to a different shop and got the right one for 4 quid, don't think the pullies are out because there was no noise from the one that broke
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Old 20th-April-2007, 11:13
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Default Re: fan belt squeal

get a candle and rub it on the inside of the belt. a nice waxy layer of it may help to futher cure the squeel
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Old 20th-April-2007, 11:41
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Default Re: fan belt squeal

ffs - its meant to grip! - do not use candle wax.

yu cud try this.... belt dressing.

Last edited by The Mad Hat Man; 20th-April-2007 at 12:44.
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Old 20th-April-2007, 14:24
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Default Re: fan belt squeal

I got a cheap belt from one of the internet places and it only lasted a couple of months before all the teeth things fell off. So I put the old one back on as a stop gap till I got another new one and it's still going well.

Your problem could be in the pullies being worn and the belt not gripping the sides properly.
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Old 20th-April-2007, 14:44
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Default Re: fan belt squeal

With the engine RUNNING, spray some WD-40 on the belt.
Really.
NO KIDDING!

The trace of oily stuff on the shiny belt sides will make it slightly STICKY, and it WILL (a) stop slipping (which causes the squeal) and (b) stop squealing. The trace of slube also allows the belt to wedge deeper into the pulley vees and grip better.

Repeat as required.

This has been a standard squealing belt cure for as long as I have worked on cars, and that's since before WD-40 was invented.

Originally we used a few drops of oil from the dipstick to do it. The first time I saw it done was on my Mum's 1172 cc sidevalve Ford Anglia in 1958 .....

This cure is only effective if the belt is properly tensioned.
If it is slack then it will probably slip and squeal no matter what, and usually worse just after a cold start when there is most load on the alternator.

Give it a try.

Guaranteed instant cure!

CharlesY
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Old 20th-April-2007, 16:14
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Default Re: fan belt squeal

Tried the WD40 trick on mine after the water pump sprayed anti freeze all over the belt and made it squeal. WD40 lasted about 5 mins every time I applied it and then it squealed again.
I bought a non-squeal belt off ebay for about 10 and it was cured.
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Old 21st-April-2007, 21:12
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Default Re: fan belt squeal

Ive had this problem for about six months. Tried WD - lasted half an hour, crayon - no effect, re-bearing on the tensioner 2 hours.

And then as I was clearing out an old grain barn, I discovered a can of belt dressing, a short apllication and 4 weeks and several hundred miles latter still running perfect......
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LZ
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