Northern Lights Diesel Generator M1066A1

Change the sea water pump impeller as needed.

Remove impeller with water pump pliers.

Ensure all pieces of a failed impeller are removed.

Clean the inside of the housing.

Place the sealing washer in the outer end of the impeller center if not already done.

Replace the cover using a new gasket.

CAUTION: High Temperature Warning

Check the coolant level each day before starting the engine.

Remove the pressure cap from the expansion tank and check water level.

Ensure coolant level is about 1 3/4 in. (4-5 cm) below the filler cap sealing surface when the engine is cold.

Open the venting cock on top of the turbocharger to ensure no air pockets form in the cooling system.

Check the pressure valve in the filler cap releases at approximately 7 PSI (0.5 bar) using a cap pressure tester.

Ensure engine is turned off and cooled down

Gather necessary tools and materials (drain hose, suitable container, recommended oil)

Remove plug from outlet in base frame

Screw in owner-supplied drain hose

Drain oil into suitable container

Close valve after oil has been drained

Ensure all special tools are available

Remove dirt from cylinder head around fuel injection nozzles using compressed air

Plug the bore in the cylinder head after each fuel injection nozzle removal

Cap fuel line openings as soon as they are disconnected

Fit protective caps over nozzle tips and line connections

Ensure fuel delivery lines are not bent

Hold male union of nozzle line stationary with a backup wrench when loosening fuel pressure lines

Loosen nuts to remove leak-off lines and T-fittings

Check for possible causes of black smoke

Check pump settings, maximum speed, idle speed, and exhaust smoke with dealer

Is there an indication of pump malfunction?

Ensure repairs involving disassembly are done by specially-trained mechanics

Verify injection pump seals are intact