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Home >> Chevrolet >> 2023 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Mechanical - 3.0L (Lm2) Diesel - Repair Instructions (1 Of 11)) >> Repair Instructions >> Crankshaft Front Oil Seal Replacement >> Installation Procedure

Installation Procedure

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  1. Clean all sealing surfaces.
  2. GM5148269Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • Install and align the crankshaft front oil seal to the block within 10 minutes after applying the sealer.
    • Ensure proper use of room temperature vulcanizing (RTV) sealant.

    Apply a 4.0 mm (0.157 in) bead of sealer along the crankshaft front oil seal sealing path (1), dimension a. Increase the bead to 6.0 mm (0.236 in) at the two locations b. Adhesives, Fluids, Lubricants, and Sealers

  3. GM5148273Courtesy of GENERAL MOTORS COMPANY

    Install the EN-52452  Front Crankshaft Seal Installer (1) to the crankshaft.

  4. Install and hand tighten the 2 bolts (2) of the EN-52452  Front Crankshaft Seal Installer (1).
  5. GM5148276Courtesy of GENERAL MOTORS COMPANY

    Crankshaft Front Oil Seal (1) - Install NEW

  6. Check that the crankshaft front oil seal (1) sits correctly on the crankshaft and the 2 pins (2, 4).
  7. Remove the 2 bolts (5) from the EN-52452  Front Crankshaft Seal Installer (3).
  8. Remove the EN-52452  Front Crankshaft Seal Installer (3) from the crankshaft.
  9. GM5190250Courtesy of GENERAL MOTORS COMPANY

    Engine Front Cover Bolt (1) - Install and tighten in sequence [8x] - Fastener Specifications

  10. GM5137111Courtesy of GENERAL MOTORS COMPANY

    Crankshaft Pulley (1) - Install

  11. Crankshaft Pulley Bolt (2) - Install and hand tighten [4x]
  12. GM5137110Courtesy of GENERAL MOTORS COMPANY

    Install the EN-49979  Crankshaft Holder (1) with EN-956-1  Extension (3) to the crankshaft pulley.

  13. Crankshaft Pulley Bolt (2) - Tighten [4x] - Fastener Specifications
  14. Remove the EN-49979  Crankshaft Holder (1) with EN-956-1  Extension (3) to the crankshaft pulley.
  15. GM5174667Courtesy of GENERAL MOTORS COMPANY

    Install the accessory drive primary belt (2) to the vehicle.

  16. Rotate the accessory drive primary belt tensioner (1) clockwise.
  17. NOTE:

    Ensure the proper routing of the accessory drive primary belt.

  18. Install the accessory drive primary belt (2) around all pulleys.
  19. GM5619156Courtesy of GENERAL MOTORS COMPANY

    Engine Front Cover (2) - Install

  20. Engine Front Cover Bolt (1) - Install and tighten - Fastener Specifications
  21. Install the charge air cooler, condenser, fan and radiator assembly to the vehicle. Charge Air Cooler, Condenser, Fan Motor, and Radiator Assembly Removal and Installation (LM2)
  22. Check and correct the engine oil level.