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Oil Pan Installation

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    Fig 1: Lower Oil Pan
    GM2726781Courtesy of GENERAL MOTORS COMPANY
  1. Ensure proper use of room temperature vulcanizing (RTV) sealant. Refer to 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. Install the lower oil pan (1) to the upper oil pan.
  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. Fig 2: Engine Oil Pan Sealing Surface
    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.
  8. 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 .
  9. Fig 3: Oil Pan And Oil Pan Bolts
    GM2726788Courtesy of GENERAL MOTORS COMPANY
  10. Install the oil pan (1).
  11. Install the oil pan bolts (2, 3) finger tight.
  12. Fig 4: Engine Oil Pan Bolt Tightening Sequence
    GM2726785Courtesy of GENERAL MOTORS COMPANY
  13. 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).
  14. Fig 5: Oil Filter Adapter
    GM2872025Courtesy of GENERAL MOTORS COMPANY
  15. Insert the oil filter fitting (1). Tighten the fitting to 50 N.m (37 lb ft).
  16. Fig 6: Oil Pump Flow Control Valve Cover And Bolts
    GM2726780Courtesy of GENERAL MOTORS COMPANY
  17. Install the oil pump flow control valve cover (3).
  18. Install the valve cover bolts (1, 4) and tighten to 9 N.m (80 lb in).
  19. Install the valve cover bolt (2) and tighten to 58 N.m (43 lb ft).