Help id this wining noise. 2.0ltr Twinspark - Alfa Romeo Forum
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Help id this wining noise. 2.0ltr Twinspark

I had a belt change done about 3 months ago and about 2 weeks later there came a new noise from the engine. It's like a high piched wining noise. A bit like an angry bee. It's definatley coming from the area where the belts are. It changes pitch as the motor increases in speed. A mechanic claims it's just the aux belt rubbing on the cam belt cover but I can't see where it is so I doubt that's the truth.

Has anyone any tips as to how I can find where it's coming from? There are a lot of pulleys and belts in that area.

I put a vid of it here.

alfawine - YouTube

Happy Easter all :-)

Bill
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I don't know how to solve your whine but I would change your mechanic. If it is "just rubbing" on the cover its not a something that should be ignored.
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Even if it is as he says it shouldn't touch the cover as it will damage the belt. it would be worth checking the outer gaurd that's just above the bet that is over the top of the cam cover it may need adjusting just to be sure.
tThe best ay to see the belt is to remove the inner arch gaurd then you can see most of it.
If its was ok for a couple of weeks it sounds like the belt my have settled in (stretched slightly)
but think the tensioner should take the small amount of slack in.
Could be the force from the new belt has shown up a weak bearing in one of the pulley wheels.

OH GIVE ME A HOME WHERE THE BUSSO'S ALL ROAM
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Is your wife/girlfriend in the passenger seat? That's normally the source of whining in my 147.
 
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Recent belt change
Recent sound of a belt rubbing

...... Probably connected...!!
Could even be that the wrong aux belt was used and it isn't sitting properly.
Or that a tensioner wasn't replaced and is now moving allowing the belt to rub.

But no, don't ignore it. Not unknown for a failing auxbelt to take the cambelt with it when it let's go...
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Originally Posted by dg74 View Post
Is your wife/girlfriend in the passenger seat? That's normally the source of whining in my 147.
I get that as well and the annoying noise moves from car to car too...
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Originally Posted by David C View Post
I get that as well and the annoying noise moves from car to car too...
 
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