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Home >> Cadillac >> 2009 >> XLR Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 4.6L (LH2) (4 Of 6) >> Repair Instructions - Off Vehicle (2 Of 4) >> Engine Block Assemble - Upper

Engine Block Assemble - Upper

    Fig 1: View Of Engine Block-To-Transmission Dowels
    GM947648Courtesy of GENERAL MOTORS CORP.
  1. Install the engine block to transmission dowels.
    2. Fig 2: View Of Engine Block-To-Transmission Dowel Proper Depth
    GM1646462Courtesy of GENERAL MOTORS CORP.
  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. Fig 3: View Of Left Side Block Deck Face-To-Left Cylinder Head Dowels
    GM947656Courtesy of GENERAL MOTORS CORP.
  3. Remove the left side block deck face to left cylinder head dowels.
    4. Fig 4: Identifying Block Deck Face-To-Left Cylinder Head Dowel Proper Depth
    GM1646463Courtesy of GENERAL MOTORS CORP.
  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. Fig 5: View Of Right Side Block Deck Face-To-Right Cylinder Head Dowels
    GM947658Courtesy of GENERAL MOTORS CORP.
  5. Install the right side block deck face to right cylinder head dowels.
    6. Fig 6: Identifying Block Deck Face-To-Left Cylinder Head Dowel Proper Depth
    GM1646463Courtesy of GENERAL MOTORS CORP.
  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. Fig 7: View Of Hex Set Stud
    GM1804347Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
    NOTE: Not all blocks will have the hex set stud installed. If the block being serviced has a hex set stud installed, and the hex set stud is removed, a NEW hex set stud must be reinstalled in the same location.
    NOTE: Ensure the NEW hex set stud has pre-applied sealant to the threads.
  7. If removed, install a NEW hex set stud and tighten to 15 N.m (11 lb ft).
    8. Fig 8: Identifying Hex Set Stud Proper Depth
    GM1804349Courtesy of GENERAL MOTORS CORP.
  8. Ensure the NEW hex set stud is installed to the bottom of the hole and the end is flush or below (1) the surface of the engine block boss.
    9. Fig 9: View Of Camshaft Intermediate Drive Shaft Block Plug
    GM947662Courtesy of GENERAL MOTORS CORP.
    CAUTION: 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.
    10. Fig 10: Identifying Camshaft Intermediate Drive Shaft Block Plug
    GM1646467Courtesy of GENERAL MOTORS CORP.
  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. Fig 11: View Of Engine Block-To-Engine Front Cover Pins
    GM947653Courtesy of GENERAL MOTORS CORP.
  11. Install the engine block to engine front cover pins.
    12. Fig 12: Identifying Engine Block-To-Engine Front Cover Pin Proper Depth
    GM1646468Courtesy of GENERAL MOTORS CORP.
  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. Fig 13: View Of Engine Block-To-Crankcase Pins
    GM947671Courtesy of GENERAL MOTORS CORP.
  13. Install the engine block to crankcase pins.
    14. Fig 14: Identifying Engine Block To Crankcase Pin Proper Depth
    GM1646469Courtesy of GENERAL MOTORS CORP.
  14. Ensure the pins are installed to the proper depth. The pin should protrude (1) 12 mm (0.4724 in).
    15. Fig 15: View Of Engine Coolant Drain Plug
    GM947667Courtesy of GENERAL MOTORS CORP.
  15. Install the engine coolant drain plug and tighten to 20 N.m (15 lb ft).
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