Harmonic Balancer

Inspect/Replace

To remove the harmonic balancer, the cylinder head and timing cover must be removed and the piston should be at top dead center (TDC).

  • Install the vibration damper by pounding it on, or use a special installation tool.
  • Generally, the damper is installed unit it bottoms out against the oil slinger and the timing sprocket.
  • If in doubt, install the water pump and pulley, and then pound the damper into place until its pulley aligns with the water pump pulley.
  • It is advisable to use the installation tool, because pounding on the damper can cause stress on the crank thrust bearing surface.
  • It is best to stand the engine block on end and support the crankshaft if the damper must be pounded on.
  • Some vibration dampers are not pressed-fit on the crankshaft.
  • Be sure to install a large washer behind the damper retaining bolt on these engines; otherwise, the damper might fly off, causing damage and a safety hazard.

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