This topic has 17 comments in the Volvo forum.

Timing Belt Tensioner Frustration?

WarWagon » 

I have the tensioner that looks more like a pulley than the “rod style” one (pictured in the Haynes Manual). How do I set that thing back in there to make it work? I see the casting marks on the engine block where the tabs set next to it with the tensioner installed. Also, there is a lever on the pulley that seems to off set the center of the pulley when slid over but the tensioner/pulley doesn’t move much. Finally, if someone has a diagram on how to route the belt that would be great because it looks like I did it correctly but it is no where near making it around the tensioner the way I’m looking at it. Any tricks or trade secrets are appreciated.

C@lvin » 

I fiddled with my tensioner until it seemed like it had lost its tension also. I just took it off and start over. When I started all over again and did as previously posted, it worked perfectly.

  1. Ensure that the center tensioner mounting screw is snug and the eccentric (or the allen shaped hole in the eccentric to be exact) is at the 10 O’Clock position
  2. Using the allen wrench, move the eccentric clockwise (which will move the needle (C) to the right). If I recall correctly, if you keep moving it clockwise it will stop and go no further when the needle is at about the 2 O’Clock position.
  3. Once the needle is to the right of the window (B) then you may move it back counter-clockwise so that the needle enters the window (B) from the right side and stop at the correct position as show in the diagram for the ambient temperature. If you go too far to the left, start over again at step 1.
  4. When the needle is in the correct position, hold the eccentric immoble with the allen wrench while tightening the tensioner’s center mounting screw per the spec.

Timing Belt Tensioner How To?

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