2004 volvo S80T6 New tensioner broken?

afelix212 · Post by **afelix212** » 27 Jan 2014, 12:18

Hey guys, I just put in a brand new tensioner in my s80, but the belt still walks off center on the cams. It hangs about 7 mm off the cams, and I'm afraid to drive it. The new tensioner makes a cracking noise when I go backwards past the 10 o'clock position, it doesn't tighten up too much when I turn it past the two 0'clock position, the indicator actually snaps back to the left once I pass the two o'clock position. On the old tensioner, it doesn't make any noise going backwards, and I don't recall the indicator snapping back to the left so easily. The tensioner does move when I press down on the belt to check the tension.

Thanks for any ideas

Bluevanacd2005 · Post by **Bluevanacd2005** » 27 Jan 2014, 18:31

I don't think that tensioner is supposed to move when you push down on the belt. I thought it was a solid mount and not spring loaded or anything. Double check that though because I am basing my experiences from a 2000 year car.

afelix212 · Post by **afelix212** » 28 Jan 2014, 00:51

It is supposed to move, what I'm not sure about is the crackling noise it's making. I called the auto parts store I got it from and asked the owner to test one out for me. He said it made no noise when dialed back. The one I took off made no noise either.

Bluevanacd2005 · Post by **Bluevanacd2005** » 28 Jan 2014, 04:53

I guess they changed the tensioner between 2000 and 2004. On my 2000 its basically and offset cam the pulley sits on that you can spin. Then there's a bolt in the middle to hold it where you set it.

Post by **chrism** » 28 Jan 2014, 11:28

Have you checked to make sure the tensioner and idler pulley are both seating square against the engine block?

afelix212 · Post by **afelix212** » 28 Jan 2014, 23:36

Yeah, I just can't get the tension right, not sure what I'm doing wrong. I think I might just need a new belt.