LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1497 (Engine Mechanical - 4.2L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Camshaft Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Coat the camshaft journals, camshaft journal thrust face, and camshaft lobes with clean engine oil.
  2. Install the intake and exhaust camshafts to their original positions.
  3. Install the J 44221  with the camshaft flats up and the number 1 cylinder at top dead center.
    Fig 1: Installing Camshafts
    G02128577Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
    IMPORTANT: Install the camshaft caps onto their original locations. The camshaft caps are pin stamped for direction and numerical order.
  4. Install the camshaft caps and bolts.

    Tighten 

    Tighten the camshaft cap bolts to 12 N.m (106 lb in).

  5. Remove the J 44221 
    Fig 2: Installing Camshaft Caps And Bolts
    G02128578Courtesy of GENERAL MOTORS CORP.
  6. Carefully move the sprockets back onto the camshafts and remove the J 44222  .
  7. Install the intake camshaft sprocket washer and bolt, and the exhaust camshaft actuator bolt.

    Tighten 

    • Tighten the intake camshaft sprocket bolt the first pass to 20 N.m (15 lb ft).
    • Use the J 36660-A  to tighten the intake camshaft sprocket bolt the final pass an additional 100 degrees.
    • Tighten the exhaust camshaft actuator bolt the first pass to 25 N.m (18 lb ft).
    • Use the J 36660-A  to tighten the exhaust camshaft actuator bolt a final pass an additional 135 degrees.
  8. Install the camshaft cover. Refer to CAMSHAFT COVER REPLACEMENT   .
    Fig 3: Removing Camshaft Sprocket Holding Tool
    G02128579Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals