EXTENDED STORAGE (more than 30 days)
When an engine is to be removed from operation for an extended period of time, prepare it as follows:
Drain and thoroughly flush the cooling system with clean, soft water.
Refill the cooling system with clean, soft water.
Add a rust inhibitor to the cooling system (refer to Corrosion Inhibitor under Cooling System).
Remove, check and recondition the injectors, if necessary, to make sure they will be ready to operate when the
engine is restored to service.
Reinstall the injectors in the engine, time them, and adjust the valve clearance.
Circulate the coolant through the entire system by operating the engine until normal operating temperature is
reached (160-185°F or 71-85°C).
Stop the engine.
Remove the drain plug and completely drain the engine crankcase. Reinstall and tighten the drain plug. Install
new lubricating oil filter elements and gaskets.
Fill the crankcase to the proper level with a 30-weight preservative lubricating oil MIL-L-21260, Grade 2 (P10), or
Drain the engine fuel tank.
Refill the fuel tank with enough rust preventive fuel oil such as American Oil Diesel Run-In Fuel (LF 4089), Mobil
4Y17, or equivalent, to enable the engine to operate 10 minutes.
Drain the fuel filter and strainer. Remove the retaining bolts, shells and elements. Discard the used elements
and gaskets. Wash the shells in clean fuel oil and insert new elements. Fill the cavity between the element and
shell about two-thirds full of the same rust preventive compound as used in the fuel tank and reinstall the shell.
Operate the engine for 10 minutes to circulate the rust preventive throughout the engine.
Refer to Air System and service the air cleaner.