Crankshaft and Bearing Removal

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Main Bearing Cap Bolt Removal Sequence

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Uniformly loosen and remove the 10 main bearing cap bolts in the sequence shown in the illustration.

Fig 2: View Of Main Bearing Cap & Lower Bearing

Courtesy of GENERAL MOTORS CORP.

CAUTION: Insert the bolts into the caps in turn. Ease the cap out by gently pulling up and applying force toward the front and back sides of the cylinder block as shown.

NOTE: Keep the lower bearing and main bearing cap as a set and arrange the main bearing caps in the correct order.

Use 2 removed main bearing cap bolts to remove the 5 main bearing caps and 5 lower bearings.
Lift out the crankshaft.

Fig 3: Identifying Upper Crankshaft Thrust Washers

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Remove the upper crankshaft thrust washers from the cylinder block.

Fig 4: Identifying Upper Crankshaft Bearings

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NOTE: Arrange the bearings in the correct order.

Remove the 5 upper main crankshaft bearings from the cylinder block.

Fig 5: View Of Lower Main Bearing & Cap

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NOTE: Arrange the bearings in the correct order.

Remove the 5 lower main bearings from the 5 main bearing caps.

Fig 6: Identifying Oil Nozzles

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Using a 5 mm socket hexagon wrench, remove the bolts and oil nozzles.

NOTE: If the cylinder is washed at high temperature, the cylinder liner will stick out beyond the cylinder block. Always wash the cylinder block at a temperature of 45°C (113°F) or less.

Clean cylinder block.