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Caterpillar C9 Industrial Engine REH — Engine Oil Pump - Remove

Repair & overhaul

For the Caterpillar C9 Industrial Engine REH, from the Caterpillar service manual.

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Before you start

  • Keep all parts clean from contaminants.
  • Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair.
  • Dispose of all fluids according to local regulations and mandates.

Procedure

  1. Remove the engine oil pan.
  2. Remove bolts (4).
  3. Remove bolt (3).
  4. Remove bolts (2) and remove engine oil pump (1).
  5. Remove the O-ring seal that is located between the cylinder block and the outlet elbow.
  6. Remove bolts (7) and remove outlet elbow (8).
  7. Remove bolts (5).
  8. Remove oil pickup tube (6) and the gasket.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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