M11 Series – Service Manual – 001-018   Crankshaft Gear, Front (Crankshaft Installed)

Remove the gear housing.

Refer to Procedure 001-033.

Install crankshaft gear puller, Part No. 3375834, and jaw, Part No.
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.

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 No. 3823258, or equivalent.

Inspect the crankshaft gear journal for burrs or damage.

Remove any burrs with Scotch-Brite™ 7448, Part No. 3823258, or equivalent.

Measure the crankshaft gear bore inside diameter.

Measure the crankshaft gear journal outside diameter.

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

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

Heat the gear in an oven for a minimum of 1.5 hours, but

not
more than 6 hours.

WARNING  Use insulated gloves, Part No. 3823730, and/or hot clamp pliers, Part No. 3823732, when handling heated parts. Hot parts can cause serious personal injury.

CAUTION  The timing mark (1) and part number (2) on the gear must be facing away from the crankshaft after the gear is installed. Engine damage can result if the gear is installed backwards.

Use Lubriplate™ 105, or equivalent, to lubricate the outside diameter
of the crankshaft gear journal.

Remove the gear from the oven. Align the keyway of the gear with the
key in the crankshaft, and install the gear within 30 seconds.

Install the gear housing. R

Refer to Procedure 001-033.

Operate the engine to normal operating temperature and check for leaks.