ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 001-071   Crankshaft Speed Indicator Ring

• Remove the crankshaft. Refer to Procedure 001-016 in Section 1.

Remove and discard the four crankshaft speed indicator ring mounting capscrews.

NOTE: The capscrews are one-time use only. They can not be reused.

WARNING  When using solvents, acids, or alkaline materials for cleaning, follow the manufacturer’s recommendations for use. Wear goggles and protective clothing to reduce the possibility of personal injury.

WARNING  Some solvents are flammable and toxic. Read the manufacturer’s instructions before using.

Clean any oil from the speed indicator ring.

Clean the capscrew holes in the crankshaft. Use degreaser solvent such as contact cleaner, Part Number 3824510.

Inspect the speed indicator ring for missing, bent, or damaged teeth.

Inspect for cracks or damaged surfaces.

If any visual damage is found, the speed indicator ring must be replaced.

Install the speed indicator ring.

Install new capscrews.

Tighten the capscrews in an alternating pattern.

• Install the crankshaft. Refer to Procedure 001-016 in Section 1.
• Operate the engine and check for leaks and proper operation.