GM Service Manual Online
For 1990-2009 cars only

Special Tools

  1. EN-47630 Holder, crankshaft
  2. EN-46789 Camshaft fixing tool
  3. CH-49290 Centring fixture Subrame- Engine
  4. EN-46788 Fixing tool, crankshaft
  5. KM-977 Holding tool, crankshaft pulley
  6. EN-46793 Fitting tool, oil pump seal
  7. EN-49430 Assembly fixture

For equivalent regional tools, refer to Special Tools

Removal Procedure

  1. Remove the timing belt. Refer to Timing Belt Replacement
  2. Fit the right-hand engine mounting (2).
  3. Note: Different fasteners.


    Object Number: 2018966  Size: SH
  4. Fit the right-hand engine pad (3).
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
  6. Remove the CH-49290 centring fixture .
  7. Remove the oil sump. Refer to Oil Pan Replacement
  8. Remove the belt pulley using EN-47630 holder (1) in combination with KM-977 holding tool (2)
  9. Note: The bolt has a left-hand thread.


    Object Number: 2018967  Size: SH
  10. Remove the oil pump sealing ring (8).
  11. Note: Prise loose the sealing ring from the oil pump using a suitable tool without damaging the sealing surfaces.


    Object Number: 2018968  Size: SH
  12. Remove the oil pump (9). Unscrew the stud from EN-46788 fixing tool .

Installation Procedure

  1. Clean the threads and sealing surfaces.
  2. Fit the oil pump (2) with a NEW gasket. Use locking agent on the M6x20 bolts. Screw in the stud for the EN-46788 fixing tool .

  3. Object Number: 2018969  Size: SH
  4. Fit the oil pump seal using EN-46793 fitting tool (3).
  5. Note: Moisten the gasket sealing lip with a little silicone grease (white).


    Object Number: 2018970  Size: SH
  6. Fit the belt pulley using EN-47630 holder crankshaft (1) in combination with KM-977 holding tool, crankshaft pulley (2). Tighten bolt to 380 N·m (280 lb ft).
  7. Note: The bolt has a left-hand thread.


    Object Number: 2018967  Size: SH
  8. Remove EN 47630 holder (1) and KM 977 holding tool (2).
  9. Fit the oil sump. Refer to Oil Pan Replacement
  10. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
  11. Place CH-49290 centring fixture on the left of the front axle member.
  12. Note: The guide bolt must be positioned in the hole in the front axle member.

  13. Put both holders to the right of the front axle member.
  14. Note: The guide bolt must be positioned in the hole in the front axle member.

  15. Fit CH-49290 centring fixture .
  16. Remove the bolt on the compressor bracket and fit EN-49430 assembly fixture .
  17. Lower the car.
  18. Remove the right-hand engine pad (13).

  19. Object Number: 2018971  Size: SH
  20. Remove the right-hand engine mounting (14).
  21. Fit the timing belt. Refer to Timing Belt Replacement