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Oil Pump - Installation

WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the oil pump cover to the balance shaft housing.
  2. Install the oil pump bolts to the balance shaft housing.
    • Tighten the pump to housing long bolts to 12 N.m (2.69 in lbs).
    • Tighten the pump to housing short bolts to 10 N.m (2.24 in lbs).
    Fig 1: Oil Pump Components
    G01777865Courtesy of GENERAL MOTORS CORP.
  3. Install the balance shaft chain guide.

    Important:  A brass feeler gauge needs to be used to ensure correct measurements are obtained. If a steel gauge is used, the steel gauge will not bend to conform to the guide and will cause incorrect measurements.

  4. Use the following procedure to adjust the balance shaft drive chain tension:
    1. 4.1. Inserting a 1 mm (0.040 in) brass feeler gauge between the chain guide and the chain.
    2. 4.2. Press the guide against the chain. Use about three pounds of force.
    3. 4.3. Tighten the chain fastener bolt. Tighten the bolt to 13 N.m (115 in lbs).
  5. Install the balance shaft chain cover.
  6. Install the balance shaft chain cover nut and bolt. Tighten the nut and bolt to 13 N.m (115 in lbs).
    Fig 2: Balance Shaft Chain Cover
    G01777866Courtesy of GENERAL MOTORS CORP.
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