Drive Belt: Description and Operation

Accessory Drive

Crankshaft Pulley
The combined crankshaft pulley and torsional vibration damper drives a single 7-ribbed vee belt. The belt drives all of the engine-mounted accessories; the generator, the power assisted steering pump, the air-conditioning compressor and the coolant water pump.

Idler Pulley
An idler pulley on the right-hand accessory mounting increases the wrap-angle around the generator pulley.

Coolant Pump Drive
The coolant pump pulley is the uppermost of the accessory drive pulleys. The coolant pump is installed between the two cylinder banks on the front face of the engine.

Power Assisted Steering Pump Drive
The power assisted steering pump pulley is located on the left side of the group of drives for the engine accessories above the air-conditioning compressor.

Air Conditioning Compressor Drive
This is positioned at the lowest point of the front-end accessory-drive on the left hand side.

Generator Drive
This is installed on the right hand accessory mounting.