ISM, ISMe, and QSM11 – 001-018   Crankshaft Gear, Front (Crankshaft Installed)

• Remove the gear housing. Refer to Procedure 001-033 in Section 1.

Install crankshaft gear puller, Part Number 3375834, and jaw, Part Number 3375839, on the gear.

Turn the pressure screw clockwise to remove the gear.

Remove the crankshaft gear key.

Do not damage the crankshaft when removing the key.

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  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

Clean the gear with solvent.

Dry with compressed air.

Inspect the crankshaft gear for cracks and broken or chipped teeth.

Remove any burrs with Scotch-Brite™ 7448, Part Number 3823258 or equivalent.

Inspect the crankshaft gear journal for burrs or damage.

Remove any burrs with Scotch-Brite™ 7448, Part Number 3823258 or equivalent.

Measure the crankshaft gear bore inside diameter.

Crankshaft Gear Bore Inside Diameter

Measure the crankshaft gear journal outside diameter.

Crankshaft Gear Journal Outside Diameter

CAUTION  Do not exceed the specified time or temperature when heating the crankshaft gear. The gear and teeth can be damaged.

Use a leather hammer to install a new key in the crankshaft keyway.

Heat the gear in an oven for a minimum of 1.5 hours, but not more than 6 hours.

• Install the gear housing. Refer to Procedure 001-033 in Section 1.
• Operate the engine to normal operating temperature and check for leaks.