Liberty 4WD L4-2.8L DSL Turbo VIN 5 (2006)
Balance Shaft: Description and Operation
SHAFT-BALANCE
DESCRIPTION
The 2.8L Common Rail Diesel engine is equipped with two gear driven nodular cast iron balance shafts in a cast aluminum carrier. The balance shaft
assembly is gear driven by the crankshaft and used to counteract engine vibration.
OPERATION
The balance shaft assembly includes four balancers on two shafts. The balance shafts are connected by helical gears, and the assembly is timed with
the engine. The dual-counter rotating shafts rotate at twice the engine speed and decrease second order vertical shaking forces caused by component
movement. Balance shaft oiling is provided through oil passages in the crankshaft carriers.