Camshaft Bearing Installation: Procedure

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Fig 1: Identifying Engine Block Camshaft Bearing Bores

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The engine block camshaft bearing bores are machined for 3 different outside diameter (OD) size bearings. Position 1 and 5 are the largest diameter bores. Position 3 is the smallest diameter bore. Position 2 and 4 are the intermediate size bores. The inside diameter (ID) for all camshaft bearings is the same size.

Measure the engine block camshaft bearing bores (1-5) in order to identify the correct OD size bearing for each position. Refer to Engine Mechanical Specifications (RPO LY2 VIN C) or Engine Mechanical Specifications (RPO LMG VIN 0) or Engine Mechanical Specifications (RPO LY5 VIN J) or Engine Mechanical Specifications (RPO LC9 VIN 3) or Engine Mechanical Specifications (RPO L76 VIN Y) or Engine Mechanical Specifications (RPO LY6 VIN K) or Engine Mechanical Specifications (RPO L92 VIN 8) .

Fig 2: View Of J 33049 Camshaft Bearing Service Kit Components

Courtesy of GENERAL MOTORS CORP.

Select the expanding driver (4-8) and washer (2 or 3) from the J 33049 . See Special Tools . Refer to Piston and Connecting Rod Assemble .
Assemble the tool.

Fig 3: Driving Bearing Out Of Or Into Engine Block

Courtesy of GENERAL MOTORS CORP.

Insert the tool (1) through the front of the engine block and into the bearing.
Tighten the expander assembly nut until snug.
Push the guide cone (2) into the front camshaft bearing in order to align the tool.
Drive the bearing into the block bore.

Fig 4: Driving Bearing Out Of Or Into Engine Block

Courtesy of GENERAL MOTORS CORP.

Install the front and rear bearings to the block.