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I guess it's going to take another beer or two and a long break for thought to get it done. LOL. The only way I can see to even get to the top bolt of the tensioner is to take a long 1/4 drive extension with a swivel allen wrench and reach over the top and that would still be difficult. Is that how you did it? I just can't get my fingers in there and that duct won't move enough.