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Oil Pan Installation

  1. Apply a 5 mm (0.197 in) wide and 25 mm (1.0 in) long bead of adhesive GM P/N 12346141 (Canadian P/N 10953433) or equivalent, to both the right and left sides of the engine front cover to engine block junction at the oil pan sealing surfaces.
    Fig 1: Installing Oil Pan (1 Of 2)
    G01644081Courtesy of GENERAL MOTORS CORP.
  2. Apply a 5 mm (0.197 in) wide and 25 mm (1.0 in) long bead of adhesive GM P/N 12346141 (Canadian P/N 10953433) or equivalent, to both the right and left sides of the crankshaft rear oil seal housing to engine block junction at the oil pan sealing surfaces.
    Fig 2: Installing Oil Pan (2 Of 2)
    G01644082Courtesy of GENERAL MOTORS CORP.

    Important:  Always install a NEW oil pan gasket.

    The oil pan gasket and oil pan must be installed and the fasteners tightened while the adhesive is still wet to the touch.

  3. Install the NEW oil pan gasket into the groove in the oil pan.
    Fig 3: Installing New Oil Pan Gasket
    G01644083Courtesy of GENERAL MOTORS CORP.

    Important:  The oil pan alignment must always be flush or forward no more than 0.3 mm (0.011 in) from the rear face of the engine block.

  4. Install the oil pan onto the engine block.
    Fig 4: Installing Oil Pan
    G01644084Courtesy of GENERAL MOTORS CORP.

    Press the oil pan gasket into the grooves of the engine front cover and crankshaft rear oil seal housing.

  5. Slide the oil pan back against a suitable straight edge.
  6. Install the oil pan bolts and nuts, but do not tighten.
  7. Measure the pan-to-transmission housing clearance using a feeler gage and a straight edge.

    Use a feeler gage to check the clearance between the oil pan-to-transmission housing measurement points. If the clearance exceeds 0.3 mm (0.011 in) at any of the 3 oil pan-to-transmission housing measurement points (1), then repeat the step until the oil pan-to-transmission housing clearance is within the specification. The oil pan must always be forward of the rear face of the engine block.

    Fig 5: Installing Oil Pan Bolts And Nuts
    G01644085Courtesy of GENERAL MOTORS CORP.
    NOTE: The alignment of the mating components is crucial. An offset greater than 0.30 mm (0.011 in) between the rear faces of the oil pan and block is not acceptable. Offsets greater than 0.30 mm (0.011 in) will affect the alignment between the engine assembly and the transmission. Mis-alignment of the engine assembly to the transmission can lead to internal and external damage to the engine assembly and/or transmission.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  8. Tighten the oil pan bolts and nuts in sequence (1-12).
    Fig 6: Tightening Sequence Of Oil Pan Bolts And Nuts
    G01644086Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the oil pan bolts to 25 N.m (18 lb ft).

  9. Measure the clearance between the 3 oil pan-to-transmission housing measurement points in order to ensure proper alignment.
  10. Install a NEW oil pan drain plug seal, O-ring, onto the oil pan drain plug.
  11. Install the oil pan drain plug into the oil-pan.
    Fig 7: Installing Oil Pan Drain Plug
    G01644087Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the oil pan drain plug to 25 N.m (18 lb ft).

  12. Install the NEW engine oil level sensor, if applicable.
    Fig 8: Installing New Engine Oil Level Sensor
    G01644088Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the engine oil level sensor to 13 N.m (115 lb in).

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