Buick 10044408 Engine Crankshaft FLYWHEEL

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To gain access to the flywheel, either the engine or the transaxle must be removed from the car, with the engine being removed if additional work is needed; otherwise, removing the transaxle is easier. If equipped with a manual transaxle, the clutch should be removed from the flywheel. The flywheel can be unbolted from the rear flange of the crankshaft, and to prevent it from turning, a long screwdriver or similar tool can be used against the engine block while removing the mounting bolts. Once the bolts are removed, the flywheel can be lifted off, and the flywheel spacer should be removed if equipped. For L4 engines, if the rear main bearing seal needs replacement, it should be pried out of its bore. The flywheel teeth should be examined for any broken or chipped teeth, as this condition requires replacement with a new flywheel. On manual transaxle flywheels, the clutch friction face should be inspected for scoring; light scoring can be corrected with emery cloth, but deep scoring necessitates machining or replacement to avoid clutch damage. For automatic transaxle flywheels, the converter securing bolt holes should be checked for elongation, which also requires flywheel replacement. Before installing the flywheel, the mating surfaces of the flywheel and crankshaft should be cleaned. If the oil seal was removed on L4 engines, a light coat of engine oil should be applied to the inside lip of the new seal before installation. To install, the flywheel should be positioned against the crankshaft using a new spacer if equipped, and the mounting bolts should be inserted and secured only fingertight, ideally using a thread sealing agent on the bolt threads. While preventing the flywheel from turning, the bolts should be tightened gradually until all are torqued to specifications, and the remainder of the installation procedure should be completed by reversing the removal steps.

If the rear main bearing seal needs replacement on L4 engines, it should be pried out of its bore.

Carefully extract the rear main oil seal from the block using a screwdriver or pry bar.

A hydraulic hoist and an engine hoist must still be available when using the alternative method.

To gain access to the flywheel, either the engine or the transaxle must be removed from the car. The engine is removed if additional work is needed; otherwise, removing the transaxle is easier.