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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.5L (LCV)) >> Repair Instructions >> Oil Pan Installation

Oil Pan Installation

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  1. GM5166431Courtesy of GENERAL MOTORS COMPANY

    Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant 

  2. NOTE:
    • The oil pan sealing surfaces must be free of contamination prior to applying the sealer.
    • Install and align the oil pans within 20 minutes of applying the sealer.
    • The oil pans must be fastened to final torque specification within 60 minutes of applying the sealer.
  3. Apply a bead of RTV sealant to the perimeter of the lower oil pan.
  4. Lower Oil Pan (1) - Install NEW
  5. CAUTION:

    Refer to Fastener Caution .

    NOTE:

    Two long bolts secure the lower oil pan and upper oil pan together to the lower crankcase.

  6. Install the short lower oil pan bolts (2) and tighten to 10 N.m (89 lb in).
  7. GM2726783Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The lower crankcase surface must be free of contamination prior to applying the sealer.
    • Install and align the oil pan to block within 20 minutes of applying the sealer.
    • The oil pan must be fastened to final torque specification within 60 minutes of applying the sealer.

    Apply a 4.25 mm bead of sealer (1) on the level part of the flange around the perimeter of the oil pan. Refer to Adhesives, Fluids, Lubricants, and Sealers .

  8. GM2726788Courtesy of GENERAL MOTORS COMPANY

    Install the oil pan (1).

  9. Install the oil pan bolts (2, 3) finger tight.
  10. Fig 1: Identifying Engine Oil Pan Bolts With Tightening Sequence
    GM2726785Courtesy of GENERAL MOTORS COMPANY

    Tighten the oil pan bolts in sequence to final torque twice using the following procedure:

    1. Tighten bolts in sequence 1 - 11 to 25 N.m (18 lb ft).
    2. Tighten bolts in sequence 12 - 13 to 10 N.m (89 lb in).
  11. GM5166436Courtesy of GENERAL MOTORS COMPANY

    Insert the oil filter fitting (1). Tighten the fitting to 50 N.m (37 lb ft).

  12. GM2726780Courtesy of GENERAL MOTORS COMPANY

    Install the oil pump flow control valve cover (3).

  13. Install the valve cover bolts (1, 4) and tighten to 9 N.m (80 lb in).
  14. Install the valve cover bolt (2) and tighten to 58 N.m (43 lb ft).