zuvdog Posted September 20, 2005 Share Posted September 20, 2005 Wife has a 1999 rx 300. Recently the timing belt came off. It didn't break but somehow came off. We had it replaced and 10 miles later it was shredded mess. the mechanic is now saying that the problem with the belt is that it's not lining up and rubbing on the back shield causing it to shred. He also says the hydrualic tensioner is bad. Has anyone had any odd problems with their timing belts? Quote Link to comment Share on other sites More sharing options...
sha4000 Posted September 20, 2005 Share Posted September 20, 2005 might have better luck in the rx forum Quote Link to comment Share on other sites More sharing options...
lenore Posted September 20, 2005 Share Posted September 20, 2005 might have better luck in the rx forum ← The suspect would be the idler tensioner or the water pump itself since it too is driven by the timing belt. Maybe the bearing failed and is allowing wobble on the drive roller, causing the belt to walk. At this point the Water pump, tensioner, and cam shaft pulleys are are suspect until you determine which one or ones are bad. By the way did Lexus do this work? Quote Link to comment Share on other sites More sharing options...
zuvdog Posted September 21, 2005 Author Share Posted September 21, 2005 might have better luck in the rx forum ← The suspect would be the idler tensioner or the water pump itself since it too is driven by the timing belt. Maybe the bearing failed and is allowing wobble on the drive roller, causing the belt to walk. At this point the Water pump, tensioner, and cam shaft pulleys are are suspect until you determine which one or ones are bad. By the way did Lexus do this work? ← At lexus Now. we changed the water pump, don't know if they did the pulleys' and tensioner. Thanks Quote Link to comment Share on other sites More sharing options...
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