Skylark L4-138 2.3L DOHC VIN D MFI QUAD 4 (1989)
Timing Chain Idler Gear: Service and Repair
Installation
INSTALL OR CONNECT
1. Coat the bearing to chain housing mating surfaces with Adhesive/Sealant Compound GM P/N 12345493 or equivalent.
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Carefully follow the instructions included with the adhesive product to insure proper bearing retention.
Installing The Idler Sprocket Bearing
2. With J 36998-4 or equivalent installed on the front of the chain housing, install the new bearing into the chain housing using J 36998-1 and J
36998-2 or equivalents.
3. Install J 36998-3 or equivalent into the back side of the chain housing between the coolant pump studs.
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The tool supports the inner race of the bearing when pressing in the timing chain idler sprocket.
