What would cause the upper bolt to break on the cerp belt tensioner?

2005 HONDA ODYSSEY
98,000 MILES
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BADANDY36
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I have a 05 odyssey with 98000+ miles and just had the water pump and timming belt replaced. Also early this spring I had the power steering pump replaced for the 2nd time and cerp belt replaced. Since I had the timming belt/water pump replaced about a week later the upper bolt broke on the cerp belt tensioner. My Mechanic replaced the bolt and it only lasted approx. 1 week. What's causing this? Is the tensioner or did they not put in the proper bolt? Thanks for any imput.

Andy
Nov 2, 2011 at 11:52 PM
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HMAC300
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it cold be either of the things you mentioned. it also depends on wher ethe bolt broke, if it broke in the block or in the middle, etc. there is a tsb that the timing cover needs to b modified for later tensioners as the design has changed. i'll send the pic along.
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Nov 3, 2011 at 12:07 AM