Had a squeaking belt, no problem, spare on the shelf, same size.

Installed the belt, belt tensioner does nothing. Loosen the "nut", it just travels down the threaded shaft. Tighten it, it runs to the top of the threads and no belt tension.

Can someone help me to understand what this thing is supposed to be doing? The FSM isn't much help, I don't know if I have a broken tensioner and if so what in it would be broken? I have a funny feeling that something was already amiss when the water pump was changed.

Also, is the M103 tensioner the same? I could get a used M103 tensioner tomorrow, I'd like to get the car together before Monday.

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Gone to the dark side

- Jeff