TM 9-2320-211-20
mostat housing (fig. 2-135) into the radiator inlet
Thermostats
hose. Slide the outlet on the bottom of the ther-
a. R e m o v a l .
mostat housing into the bypass hose. Position the
(1) Drain the cooling system. Refer to TM 9-
thermostat housing at the front of the water outlet
2320-211-10.
h e a d e r , and install the six capscrews and lock-
(2) Loosen the rear clamp on the radiator inlet
washers. Tighten the capscrews.
hose (fig. 2-134).
(4) Position the rear end of the radiator stay
( 3 ) Loosen the upper clamp on the bypass
rod at the bracket on the left side of the thermostat
hose (fig. 2-134).
housing (fig. 2-134), and install the radiator-stay-
(4) Remove the cotter pin and radiator stay
rod pin and cotter pin.
rod pin (fig. 2-134) securing the stay rod to the
( 5 ) Tighten the rear clamp on the radiator
thermostat housing, and remove the stay rod.
inlet hose (fig. 2-134) and the upper clamp on the
(5) Remove the six capscrews (fig. 2-135) and
bypass hose.
lockwashers at the front of the thermostat housing,
( 6 ) Fill the cooling system. Refer to TM 9-
and remove the housing from the bypass hose and
2320-211-10.
from the radiator inlet hose. Remove and discard
the thermostat housing-to-water outlet header
2-115. Thermostat and Seal--Multifuel Models
gasket.
a. R e m o v a l .
(6) Pull the thermostats (fig. 2-135) from the
(1) Drain the cooling system. Refer to TM 9-
housing.
2320-211-10.
(2)
Loosen the rear clamp on the radiator inlet
hose.
(3) Remove the two capscrews and plain
washers securing the thermostat housing assembly
t o the intake manifold (fig. 2-136).
( 4 ) Loosen the two clamps securing the ther-
m o s t a t housing-to-water pump hose (fig. 2-137).
( 5 ) Remove the thermostat housing assembly
with the thermostat installed.
(6) Remove and discard the intake manifold-to-
thermostat housing gasket.
(7) Remove the thermostat from the thermostat
h o u s i n g assembly (fig. 2-137).
( 8 ) Inspect the thermostat seal. When defects
are noted, replace the seal (fig. 2-138).
housing--gasoline models.
b. Installation.
(1) Clean gasket surfaces on the thermostat
housing (fig. 2-135) and water outlet header, and
install a new gasket on the front of the header using
a liquid type gasket cement.
( 2 ) Make sure that the rubber seals are in
p l a c e on t h e t w o t h e r m o s t a t s , a n d p l a c e t h e
thermostats in the housing.
(3) Slide the outlet on the front of the ther-
