GM Service Manual Online
For 1990-2009 cars only

OVERSIZE TAPPET BORES IDENTIFICATION

Models Affected: 1983-84 2.0l Skyhawk Equipped with 2.0L Engines (Vin Code P)

Some 2.0L L4 engines may have been produced with 0.26m oversize tappet bores. The oversize tappet bore is identified with a vertical stripe of white paint on both sides of the tappet bore inside the tappet cavity. In addition, the cylinder block has a steel stanp with ".26 OS" on the top right front maching pad. If one of the oversize hydraulic valve lifters requires replacement, use part nunber 5233545.

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