View single post by SpeedyMitch
 Posted: 06-08-2011 11:42 pm
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SpeedyMitch



Joined: 12-17-2009
Location: Hailey, Idaho USA
Posts: 83
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 I changed the timing belt and belt tensioner bearing about a year ago. I have put several *thousand* miles on the JH since then with no (related) issues. At one point Kurt confirmed that my belt was *slightly* on the tight side but pretty good (no belt noise).

Recently I noticed that the belt was wearing strangely. The side of the belt facing the engine would fray and wear making my 1" wide belt something closer to 7/8". Until last week the belt would be right in the middle of the pulleys every time I popped the hood to check it out.

Last night I took the belt tensioner off to check the bearing - all good. The belt tensioner has a lip on the inside that is causing the wear on the belt when the belt is running hard against it.

I installed a new timing belt and noticed right away that at idle the new belt moves all the way back on the pulleys, close to the engine block. I also noticed that the exhaust pulley has a wobble. I'm sure they are related as the wobble seems more pronounced than previously.

The exhaust pulley bolt is tight and the pulley itself does not have any apparent play.

Any ideas on probable causes for the pulley to wobble?

Thanks in advance for any ideas or assistance!

Speedy Mitch