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The crankshaft balancer pulley
The accessory drive component mounting brackets
The accessory drive components
The power steering pump, if belt driven
The generator
The A/C compressor, if equipped
The engine cooling fan, if belt driven
The water pump, if belt driven
The vacuum pump, if equipped
The air compressor, if equipped
The drive belt system may use 1 belt or 2 belts. The drive belt is thin so that it can bend backwards and has
several ribs to match the grooves in the pulleys. There also may be a V-belt style belt used to drive certain
accessory drive components. The drive belts are made of different types of rubbers - chloroprene or EPDM -
and have different layers or plys containing either fiber cloth or cords for reinforcement.
Both sides of the drive belt may be used to drive the different accessory drive components. When the back side
of the drive belt is used to drive a pulley, the pulley is smooth.
The drive belt is pulled by the crankshaft balancer pulley across the accessory drive component pulleys. The
spring loaded drive belt tensioner keeps constant tension on the drive belt to prevent the drive belt from
slipping. The drive belt tensioner arm will move when loads are applied to the drive belt by the accessory drive
components and the crankshaft.
The drive belt system may have an idler pulley, which is used to add wrap to the adjacent pulleys. Some
systems use an idler pulley in place of an accessory drive component when the vehicle is not equipped with the
accessory.
ENGINE COMPONENT DESCRIPTION
LS1/LS6 Engine
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