Belt Tensioner

Removing and installing belt tensioner on DFI engines





Preliminary work

1. Loosen drive belt around the belt tensioner.

Information

Component overview





Belt drive

1 - Deflection roller; deflection roller with timing-case cover to upper part of crankcase - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
2 - Hydraulic belt tensioner; tensioner to lever - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.) tensioning roller to tensioning lever - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
3 - Screw, M8 x 96; complete lever to timing-case cover and cylinder head - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.) belt tensioner and timing-case cover to bracket - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
4 - Deflection roller; deflection roller with timing-case cover to cylinder head - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
5 - Dual poly V-belt

Removing belt tensioner





Belt drive

1 - Deflection roller; deflection roller with timing-case cover to upper part of crankcase - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
2 - Hydraulic belt tensioner; tensioner to lever - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.) tensioning roller to tensioning lever - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
3 - Screw, M8 x 96; complete lever to timing-case cover and cylinder head - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.) belt tensioner and timing-case cover to bracket - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
4 - Deflection roller; deflection roller with timing-case cover to cylinder head - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
5 - Dual poly V-belt

1. Loosen both fastening screws on the belt tensioner. -3-
2. Remove belt tensioner. -2-
3. Components can be replaced individually. The cap must first be levered off in order to remove the tensioning roller. To do this, insert a small screwdriver underneath the cap and lever it off. The tensioning roller and tensioner can be replaced individually.

Installing belt tensioner





Belt drive

1 - Deflection roller; deflection roller with timing-case cover to upper part of crankcase - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
2 - Hydraulic belt tensioner; tensioner to lever - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.) tensioning roller to tensioning lever - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
3 - Screw, M8 x 96; complete lever to timing-case cover and cylinder head - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.) belt tensioner and timing-case cover to bracket - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
4 - Deflection roller; deflection roller with timing-case cover to cylinder head - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)
5 - Dual poly V-belt

Information
When fitting the damper element/tensioner, ensure that the label can be read from outside.
The bellows must be facing upwards.





Damper element/tensioner

Tensioner to lever, M8 -arrow- - Tightening torque: 32 Nm (24 ftlb.)±3 Nm (±2 ftlb.)

1. Components can be replaced individually. The cap must first be levered off in order to remove the tensioning roller. To do this, insert a small screwdriver underneath the cap and lever it off. The tensioning roller and tensioner can be replaced individually.
2. Fit belt tensioner. -2-
3. Screw in and tighten both fastening screws on the belt tensioner. -3-

Subsequent work

1. Fit drive belt.