GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1996 🢒 Corvette 🢒 Engine 🢒 Engine Mechanical - 4.3L and 5.7L 🢒 Oil Pump Replacement

Removal Procedure
  1. Remove the oil pan. Refer to Oil Pan Replacement .

    2. Object Number: 11438 Size: SH
  2. Remove the oil pump bolt.
  3. Remove the oil pump.
  4. Remove the driveshaft.
  5. Remove the retainer.

Installation Procedure

    Important: Replace the pressure relief valve spring when you reuse the oil pump.


    Object Number: 11438 Size: SH
  1. Install the oil pump.
  2. Install the driveshaft.
  3. Align the slot in the end of the drive shaft with the drive tang on the oil pump shaft.
  4. Install the retainer.
  5. Install the bolt attaching the oil pump to the rear crankshaft bearing cap.
  6. Install the crankshaft oil deflector nuts.

    7. Tighten

        • Tighten the oil pump bolt to 90 N·m (66 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

        • Tighten the crankshaft oil deflector nuts to 40 N·m (30 lb ft).
  7. Install the oil pan. Refer to Oil Pan Replacement .