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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 294 (Timing Belt Replacement - 3.0L V6) >> Removal & Installation >> Removal

Removal & Installation: Removal

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  1. Disconnect negative battery cable. Remove air cleaner assembly.
  2. Raise and support vehicle. Remove right front wheel. Remove lower front splash shield.
  3. Lower vehicle. Loosen, but DO NOT remove, water pump pulley bolts. Rotate accessory serpentine belt tensioner clockwise using a 15 mm wrench, and remove accessory serpentine belt from pulleys.
    NOTE: Right engine mount must be removed before accessory drive belt can be removed from vehicle.
  4. Install the 3 Bar Engine Support Fixture (SA9105E) and the Engine Support Fixture Adapter (J-43405) to support weight of engine from above or from below with a floor jack. Remove front engine mount (timing belt end of engine) from engine and frame.
  5. Remove water pump pulley bolts and pulley. Remove the power steering pump pulley bolts and pulley. Remove accessory drive belt tensioner from engine block.
  6. Remove 6 harmonic balancer-to-crankshaft bolts. Remove harmonic balancer. It is NOT necessary to remove crankshaft center bolt.
  7. Remove wiring harness channel from front timing belt cover, and secure away from engine. Remove front timing belt cover. Inspect sealing strip on outer edge of cover for cracks or tears. Replace, if necessary.
  8. Rotate crankshaft clockwise to 60 degrees Before Top Dead Center (BTDC). See Fig 1.
  9. Install Crankshaft Locking Tool (J-42069-10). Rotate the crankshaft in the engine rotational direction, clockwise, using the Crank Hub TORX Socket (J-42098) until the No. 1 cylinder is at TDC and tighten the lever arm to the water pump pulley flange. See Fig 2.
    NOTE: Ensure that the alignment of the crankshaft is not 180 degrees off. The alignment mark must align with the corresponding notches on the rear timing belt cover. See Fig 3.
  10. To lock camshafts in place, install Camshaft Gear Holders 1-2 (J-42069-1) and 3-4 (J-42069-2). See Fig 4. It may be necessary to loosen timing belt idler pulley and turn eccentric until holder can be inserted.
  11. Loosen timing belt tensioner. Remove timing belt.
    CAUTION: DO NOT remove Camshaft Holders (J-42069) with timing belt removed.
    CAUTION: DO NOT rotate crankshaft unless camshafts are properly locked in place, or valves may contact pistons.
    CAUTION: DO NOT rotate camshafts unless crankshaft in at 60° BTDC, or valves may contact pistons.
Fig 1: Positioning Crankshaft At 60° BTDC
G97C03702Courtesy of GENERAL MOTORS CORP.
Fig 2: Installing Crankshaft Holder
G97E03703Courtesy of GENERAL MOTORS CORP.
Fig 3: Aligning Timing Belt Marks With Rear Cover Marks
G00019684Courtesy of GENERAL MOTORS CORP.
Fig 4: Installing Camshaft Gear Holders
G97G03704Courtesy of GENERAL MOTORS CORP.
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