Harmonic Balancer - Crankshaft Pulley: Service and Repair
Crankshaft Pulley
Special Tool(s)
Removal
All vehicles
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect the battery LH and RH ground cable(s).
3. Remove the cooling fan stator-6.0L diesel engine.
Vehicles with dual generator
4. Remove the dual generator accessory drive belt.
5. Remove the bolts and the dual generator pulley.
All vehicles
6. Remove the accessory drive belt.
7. Check the crankshaft vibration damper runout.
^ Remove the paint from the face of the crankshaft vibration damper at four points 90 degrees apart.
^ Attach the special tool to the cylinder block. Position the special tool on one of the unpainted surfaces.
^ Using a suitable tool, pry the crankshaft forward. Zero the dial indicator.
^ NOTE: Pry the crankshaft forward only to eliminate possible error caused by crankshaft end play.
Rotate the crankshaft 90 degrees. Pry the crankshaft forward. Record the measurement. Repeat at each unpainted surface.
- If the runout exceeds specification, install a new crankshaft vibration damper.
8. WARNING: To avoid personal injury, support the vibration damper during mounting bolt removal. The damper can slide off the nose of the crankshaft very easily.
Remove the bolts and the crankshaft vibration damper.
^ Discard the bolts.
Installation
All vehicles
1. CAUTION: To prevent engine damage, you must always install four new bolts when installing the vibration damper.
NOTE: Do not use anti-seize compounds, grease or any lubricants. Lubricants have an adverse effect on the torque results.
Install the crankshaft vibration damper and bolts.
^ Tighten in the sequence shown.
^ Tighten to 68 Nm (50 ft. lbs.).
^ Tighten an additional 90 degrees.
2. Install the accessory drive belt.
Vehicles with dual generator
3. Install the dual generator pulley and bolts.
4. Install the dual generator accessory drive belt.
All vehicles
5. Install the cooling fan stator-6.0L diesel engine.
6. Connect the LH and RH battery ground cables.