156 v6 aux belt squeal????? - Alfa Romeo Forum
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156 v6

156 v6 aux belt squeal?????

I have replaced the aux belt tensioner,the idlers(2 of them) and brand new belt,and still it squeals?????.More so when it warms up,i've tried loosening the tensioner(i know it only needs very little tightness 2.1nm).my tensioner is moving ok.
I know its the belt as i've had the belt off and no noise,i've spayed the belt with wd40 and the noise goes away for a minute or two.All of the belt is seated on all pulleys very well.
I am at a total loss????help
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Could be a dodgy idler or tensioner even though new
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Could be the waterpump, Alternator or aircon pump as they run on the same belt circuit.

You need to tighten the moving tensioner up, then remove the pin to allow it to tension the belt.
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156 , aux , belt , squeal

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