Quote:
Originally Posted by Dippas
I have replaced the tensioner pulley (not the whole tensioner) a few months ago and the idlers are the newer steel type (not sure how old) and I have not done the alternator pulley at all.
I did notice that the harmonic balancer/damper seems to wobble a bit when running, about 1-2mm in a vertical direction when looking at the balancer front on (if that make sense) there doesn't seem to be much in/out movement from the balancer.
Could it be this movement that is causing the noise or is it more likely to be the idlers?
Its just weird that the noise goes away by only slightly reducing the tension off the belt.
I will try the idlers first and see if that helps
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I noticed the same from my harmonic balancer. They can become delaminated. My fathers Camry had an aircon pump bearing worn and chewed the belt up over time. With the tensioner, it's the springloaded arm (in particular the spring) that is the maintaining force for tension. Like mine, if the spring slackens or the belt stretches there is not enough preload against the spring and it will vibrate. The only question is, do I fork out $250 for a whole kit or $60 for the belt. I need to replace the O'ring in the charge air line - pre silencer as oil has been also dripping on the belt which can't be good for it. But eitherway, I will be removing it when I change the belt so I can get better access to the pullies to check everything. I have just reached 170,000klms and a lot of original parts don't last too much longer. I recall mums Falcon around the same mileage. We were under that car for a while changing out bearings, joints bushes, pullies etc.