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Discussion Starter #1
Hi All,
I've recently changed all the belts, tensioners,water pump and variator on my 166. When I pick away or when the engine is under load I can here a vibration from the timing belt area. I suspect the belt tension may be wrong. Can anyone confirm this or suggest what the problem might be. Thanks.

Burt.
 

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Hi, is it a 2.0? I guess so if the variator is involved.

First place to check would be the balancer belt, if that is not in the correct place, the engine vibration will be worse than if it were not there at all. Has it been done very recently, would the paint marks still be visible as the marks on the belt should correspond to the marks on the balancer pulleys, it is easy to get the things to move when tightening everything up as they are not locked like the cams.

HTH
 

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Discussion Starter #3
Hi Purpe 145,
Sorry it took so long to reply. I've checked the balance belt, it's OK. The timing belt was a bit on the tight side, now OK. I think I may have described the issue incorrectly. When I say a vibration, it can't actually be felt, its a vibrating noise. I will get somebody to press the throttle while I stick my head under the bonnet and see if it throws any more light on it. If not I may have to live with it. It's running ok apart from that.

burt
 

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Hi, were all the bearings and tensioners changed as well? although that is no guarantee of quiet running as I have noise on my 145 6 months down the line despite changing everything that moves.
 

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Discussion Starter #5 (Edited)
Hello again.
Yes everything was changed but it appears I've put you totally on the wrong track. I had someone rev the car while I listened and it sounds like the noise is comming from the inlet manifold area. If it is drawing air I guess that would explain the bad fuel consumption that I've been experiencing. It's a bit of a coincidence that this has happened just after changing the belts. I will have to investigate further and will post my fidings.

burt

I have now found that the vibrating noise was coming from the auxiliary belt pulley. I hope this helps someone if they experience this issue and thanks to Purple 45 for all the info I received on this issue.

burt
 
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