Drive Belt Tensioner: Service and Repair

Replacing belt tensioner








Component overview

Removing belt tensioner





1. Pull throttle cover vertically upwards and off.





2. Remove Y-shaped pipe.





3. Remove the drive belt from the tensioning roller. To do this, relieve tensioning roller with an open-ended wrench and remove the belt from the tensioning roller.
4. Disconnect the lower fastening screw on the shock absorber.
5. Undo the upper fastening screw.
6. Remove components and repair appropriate components.





7. In order to remove the tensioning roller the cap must be levered off. To do this, insert a small screwdriver underneath the cap and lever it off.

Installing belt tensioner

Note:
^ When fitting the shock absorber tensioning element, ensure that the text can be read from outside.
^ The bellows must face upwards.
^ Tighten the fastening screw (M8 x 33) on holder to 23 Nm (17 ft. lbs.).





1. Install holder with tensioning element. Tighten the upper fastening screw (M8 x 100) to 32 Nm (24 ft. lbs.).
2. Tighten the lower fastening screw (M8 x 33) to 23 Nm (17 ft. lbs.).





3. Gather the belt section between the deflector roller of cylinder bank 1-4 and the crankshaft belt pulley to form a loop and guide it upwards to the tensioning roller -8- . Use a wrench (a/f 30) to turn the tensioning roller -8- clockwise at the hexagon clockwise and put on the drive belt. Slowly relieve the tensioning roller.





Fitting the drive belt

4. Check whether the drive belt is correctly positioned on the pulleys.
5. Install the Y pipe.





6. Press the 4 rubber elements in the cover onto the 4 ball socket holders. The fastening elements must be felt engaging.