TM 5-3810-306-20
CAUTION
Do not let any gasket material/debris
fall into thermostat cavity.
e. Clean all sealing surfaces on engine block and
thermostat housing.
INSPECTION:
1.
TEST THERMOSTATS.
a. Place thermostats (7) and thermometer (15) in
water.
b. Place water heater (14) in water.
c. Watch thermostats (7) and thermometer (15) as
water temperature rises.
d. Note temperature when thermostats (7) open.
Thermostats (7) must open at 180°F. If not,
replace with new thermostats (7).
INSTALLATION:
1.
INSTALL THERMOSTATS (7).
a. Install thermostats (7) in cylinder block.
b. Align new thermostat gasket (6) and thermostat
housing (5) with cylinder block mounting holes
and secure with outer capscrews (4).
c. Align water outlet connection (2) and new
connection gasket (3) with thermostat housing
holes and secure with two capscrews (1).
Torque capscrews (1) and (4) to 18 ft-lbs (24
Nm).
7-17
