Photos attached. These are the new belts. They still make a creaking noise when the engine turns slowly at idling speed.
As I think is clear in the photos, the belts sit too deep in the pulley grooves, particularly the crank pulley.
I know the belts are original Volvo spec, but they are notoriously prone to noise, and debate on Brickboard etc identified the problem as being because they needed to be wider.
The figure of 11.9 mm seems perhaps a bit too wide, but it happens to be a standard width size. On Brickboard Gates belts seem to be recommended.
The figure was quoted here some years ago by Clan.
Perhaps 11mm would be best?
Last edited by Clifford Pope; May 22nd, 2018 at 08:53.
|