ARMY TM 9-2815-256-24
AIR FORCE TO 38G1-96-2
MARINE CORPS TM 2815-24/5
Remove adapter (9) and plug (7), if replacing housing (8).
Cover all openings to prevent entry of foreign material.
Inspect thermostat for excessive wear or damage.
Inspect housing for cracks, corrosion, or other damage.
If thermostat is suspected of being defective, replace thermostat.
Replace thermostat if worn or damaged.
Replace housing if badly corroded or damaged.
Remove all covers.
Ensure all old gasket material is removed from gasket surfaces.
Install adapter (9, FIGURE 3-2) and plug (7) in housing (8).
Position housing (8) and new gasket (12) on engine and secure with two capscrews (3). Tighten screws to 35 ft-
lbs (47 Nm).
If required, install temperature sending unit.
Install by-pass hose (11) on adapter (9) and water pump housing and secure with two hose clamps (10).
Apply a thin coat of sealing compound (FORMAGASKET2) on thermostat housing (8) and cover (4).
Position thermostat (6) in housing (8).
Position cover (4) and new gasket (5) on housing (8) and secure with three capscrews (1 and 2). Tighten screws
to 20 ft-lbs (27 Nm).
Install outlet hose and secure with hose clamp.
Air must be expelled from system when refilled with coolant. Loosen temperature sending unit
fitting at rear of cylinder head or plug in thermostat housing to allow air to escape when filling
system. Retighten fitting or plug when all the air has been expelled.
Service coolant system, refer to end item maintenance manual.