ARMY TM 9-2815-257-24
AIR FORCE TO 38G1-128-2
MARINE CORPS TM 10155A/2815-24/3
When cleaning, engine must be COLD (same temperature as outside air).
DO NOT point water stream directly at any electrical connection. DO
NOT use high pressure water supply system. Damage to engine,
electrical system, and other components may result.
Only use those authorized cleaning solvents or agents listed in Appendix E,
Expendable and Durable Items List.
a. When using water to clean the engine assembly, always cover all air ducts and exhaust ports using
waterproof material to prevent damage to components. Cover all electrical components and connections. Use
water pressure and volume similar to a standard household water supply (50 PSI maximum, 3 gallons per
b. After cleaning, allow engine assembly to air dry. Do not use compressed air to dry. Do not run
engine to decrease drying time.
c. Remove all component covers after cleaning.
Keep cleaning solvents, gasoline, and lubricants away from rubber or
soft plastic parts. Solvents will deteriorate these materials.
d. When cleaning grease build-up or rusty places, use cleaning solvent (Item 7, App. E), then apply a thin
coat of light oil (Item 6, App. E) to affected area.