GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • EN 46109 Guide Pin Set
    • EN 47839 Crankshaft Rear Oil Seal Installation Tool
    • J 42183 Handle
        For equivalent regional tools, refer to Special Tools.

    Object Number: 1961655  Size: SH
  1. Install the 6 mm (0.236 in) guides from the EN 46109 guide pin set  (1) into the 2 crankshaft rear oil seal housing corner bolt holes of the cylinder block (2).

  2. Object Number: 1961656  Size: SH
  3. Install the J 42183 handle  (1) with the EN 47839 installation tool  (2) onto the rear of the crankshaft flange.

  4. Object Number: 1961658  Size: SH
  5. Place a 3 mm (0.118 in) bead of RTV sealant (1) to the NEW crankshaft rear oil seal housing as shown.

  6. Object Number: 1958877  Size: SH

    Note: DO NOT allow any engine oil on the area where the crankshaft rear oil seal housing is to be installed.

  7. Install the crankshaft rear oil seal housing (1) to the cylinder block (2).

  8. Object Number: 1961655  Size: SH
  9. Remove the EN 46109 guide pin set  mm (0.236 in) guides (1) from the cylinder block (2).
  10. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1958873  Size: SH
  11. Install the crankshaft rear oil seal housing to cylinder block retaining bolts (1) and tighten to 10 N·m (89 lb in).

  12. Object Number: 1961656  Size: SH
  13. Remove the J 42183 handle  (1) and EN 47839 installation tool  (2) from the crankshaft flange.