GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2006 🢒 XLR 🢒 Engine 🢒 Engine Mechanical - 4.4L 🢒 Engine Block Assemble - Upper

    Object Number: 1644270 Size: SH
  1. Install the engine block to transmission dowels.

    2. Object Number: 1646462 Size: SH
  2. Ensure the dowels are installed to the proper depth. The dowel should protrude (1) 9.0-10.0 mm (0.3543-0.3937 in).

    3. Object Number: 1644268 Size: SH
  3. Remove the left side block deck face to left cylinder head dowels.

    4. Object Number: 1646463 Size: SH
  4. Ensure the dowels are installed to the proper depth. The dowel should protrude (1) 13.5-14.5 mm (0.5315-0.5709 in).

    5. Object Number: 1644269 Size: SH
  5. Install the right side block deck face to right cylinder head dowels.

    6. Object Number: 1646463 Size: SH
  6. Ensure the dowels are installed to the proper depth. The dowel should protrude (1) 13.5-14.5 mm (0.5315-0.5709 in).

    7. Object Number: 1644267 Size: SH
  7. Install the NEW piston oil nozzle oil gallery expansion plug.

    8. Object Number: 1646465 Size: SH
  8. Ensure the plug is installed to the proper depth (1) of 2.0-3.5 mm (0.0787-0.1378 in).

    9. Object Number: 1644266 Size: SH

    Notice: Proper installation of the camshaft intermediate shaft plug must be ensured. An improperly installed camshaft intermediate shaft plug can interfere and restrict oil flow to the cylinder heads if installed too shallow, and may interfere with the crankshaft if installed too deep. Failure to properly install the camshaft intermediate shaft plug can lead to engine damage.

  9. Install the NEW camshaft intermediate drive shaft block plug. The installation tool must not deform the rear face of the plug and cause interference with the crankshaft.

    10. Object Number: 1646467 Size: SH
  10. Ensure the plug (1) is properly seated to the flange (2) in the bore and will not interfere with the engine block oil passages (3) or the crankshaft counter-weight (4).

    11. Object Number: 1644265 Size: SH
  11. Install the engine block to engine front cover pins.

    12. Object Number: 1646468 Size: SH
  12. Ensure the pins are installed to the proper depth. The pin should protrude (1) 8.5-9.5 mm (0.3347-0.3740 in).

    13. Object Number: 1644262 Size: SH
  13. Install the engine block to crankcase pins.

    14. Object Number: 1646469 Size: SH
  14. Ensure the pins are installed to the proper depth. The pin should protrude (1) 12 mm (0.4724 in).

    15. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1644260 Size: SH
  15. Install the engine coolant drain plug.

    16. Tighten
    Tighten the engine coolant drain plug to 20 N·m (15 lb ft).


    Object Number: 1644259 Size: SH
  16. Install the piston oil nozzles.
  17. Install the piston oil nozzle bolts.

    18. Tighten
    Tighten the piston oil nozzle bolt to 10 N·m (89 lb in).