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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 >> Timing Belt >> Installation

Timing Belt: 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. Insert lug of tensioner plate into tensioner hole. Install tensioner, plate and spring. Hand tighten tensioner bolt and stud. Ensure proper plate movement. If no movement occurs between plate and tensioner, remove tensioner and plate and reinsert lug into tensioner hole.
  2. Rotate camshaft sprocket clockwise and align timing mark on camshaft sprocket with "V" mark on timing belt cover. Rotate crankshaft and align punch mark on timing belt sprocket with arrow on oil pump. See Fig 1.
    Fig 1: Aligning Timing Marks
    G80046Courtesy of GENERAL MOTORS CORP.
  3. With marks aligned, install timing belt onto sprockets so that drive side of belt is free of any slack with tensioner plate pushed up. To remove slack in timing belt, turn crankshaft one revolution clockwise after installing timing belt.
  4. After removing slack, tighten tensioner stud nut. Tighten tensioner bolt. Install timing belt outer cover. Align keyway on crankshaft sprocket and tighten 4 bolts.
  5. Install water pump pulley and drive belt. Adjust drive belt to proper tension. Adjust valve clearance. To complete installation, reverse removal procedure.
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