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Home >> Geo >> 1990 >> Metro Base, 4D Hatchback, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (1.0L 3-CYL - VIN [5] & 1.0L 3-CYL Turbo - VIN [2]) >> Removal & Installation >> Camshaft >> Installation

Removal & Installation: Camshaft: Installation

WARNING: This page is about a different car, the 1988 Chevrolet Sprint. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply engine oil to camshaft lobes, journals and oil seal on cylinder head. Install camshaft. Install timing belt inner cover and camshaft sprocket. Align sprocket keyway and tighten bolt.
  2. Apply engine oil to fuel pump actuating rod. Install rod, gasket and fuel pump. Apply engine oil to rocker shaft and rocker arms.
    NOTE: Dimensions of intake and exhaust rocker shaft stepped ends differ. Intake rocker shaft stepped end O.D. is .55" (14.0 mm). Exhaust rocker shaft is .59" (15.0 mm). Shafts are NOT interchangeable.
  3. Position intake rocker arm shaft with its stepped end facing camshaft pulley side. Position exhaust rocker arm shaft with its stepped end facing the distributor side.
  4. Arrange rocker arms and springs on top of valves. Refer to Fig 1. Install rocker arm shafts and tighten shaft support screws. Install gasket, distributor case and distributor on cylinder head.
    Fig 1: Exploded View of Rocker Arm Assembly
    G80045Courtesy of GENERAL MOTORS CORP.
  5. Install belt tensioner, timing belt, outside cover, crankshaft sprocket and water pump pulley. Adjust valve clearance. Install rocker arm cover. Adjust ignition timing. To complete installation, reverse removal procedure.
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