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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 330 (ENGINE MECHANICAL - 2.2L)REMOVAL AND INSTALLATIONUNIT REPAIR ASSEMBLYTIMING BALANCE SHAFTS TO ENGINE (UNIT REPAIR)
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F

Timing Balance Shafts To Engine (Unit Repair)

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Timing Balance Shafts To Engine (Unit Repair)
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:  If balance shafts are not properly timed to engine, engine may vibrate or make noise.

  1. Install balance shaft drive chain with colored links lined up with marks on balance shaft drive sprockets and crankshaft sprocket. Use the following procedure to line up links with sprockets:
    1. 1.1 Orient chain so that copper colored and chrome links are visible.
    2. 1.2 Place copper colored link (1) so that it lines up with timing mark on intake side balance shaft sprocket.
    3. 1.3 Working clockwise around chain, place first chrome link (2) in line with timing mark on crankshaft drive sprocket (approximately 6 o'clock position on crank sprocket).
    4. 1.4 Align last chrome link (4) with timing mark on exhaust side balance shaft drive sprocket.
  2. Install balance shaft chain guides.
    Fig 1: Installing Timing Chain
    G01039650Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.