ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 001-051   Vibration Damper, Rubber

Preparatory Steps

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Remove

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NOTE: Some engines use four damper capscrews while others use five damper capscrews.

Remove the vibration damper.

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Inspect for Reuse

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Check the index lines (A) on the damper hub (B) and the inertia member (C). If the lines are more than 1.59 mm [1/16 in] out of alignment, replace the damper.

Inspect the vibration damper hub (B) for cracks. Replace the damper if the hub is cracked.

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Inspect the rubber member for deterioration. If pieces of rubber are missing or if the elastic member is more than 3.18 mm [1/8 in] below the metal surface, replace the damper.

NOTE: Also look for forward movement of the damper ring on the hub. Replace the damper if any movement is detected.

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Install

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NOTE: Some engines use four damper capscrews while others use five damper capscrews.

Install the vibration damper.

Tighten the capscrews in a star pattern.

Torque Value:  200  n.m  [148 ft-lb]

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Finishing Steps

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Last Modified:  05-Oct-2009