Camshaft Bearing Installation

Tools Required 

J 33049  Camshaft Bearing Service Set

IMPORTANT: The engine block camshaft bearing bores are machined for 3 different outside diameter (OD) size bearings. Positions 1 and 5 are the largest diameter bores. Position 3 is the smallest diameter bore. Positions 2 and 4 are the intermediate size bores. The inside diameter (ID) for all camshaft bearings is the same size.
Fig 1: Identifying Engine Block Camshaft Bearing Bores
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1. 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 (LR4 VIN V) or Engine Mechanical Specifications (LM7 VIN T) or Engine Mechanical Specifications (L33 VIN B) or Engine Mechanical Specifications (L59 VIN Z) or Engine Mechanical Specifications (LQ4 VIN U) or Engine Mechanical Specifications (LQ9 VIN N) .
2. Select the expanding driver (4-8) and washer (2 or 3) from the J 33049  . Refer to Camshaft Bearing Removal .
   Fig 2: View Of J 33049 Camshaft Bearing Service Kit Components

   Courtesy of GENERAL MOTORS CORP.
3. Assemble the tool.
4. Insert the tool through the front of the engine block and into the bearing.
5. Tighten the expander assembly nut until snug.
6. Push the guide cone into the front camshaft bearing in order to align the tool.
7. Drive the bearing into the block bore.
   Fig 3: Driving Bearing Into Engine Block

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8. Install the front and rear bearings to the block.
   Fig 4: Driving Bearing Out Of Or Into Engine Block

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