4-20 COOLING SYSTEM
Coolant (see Coolant Change in the Periodic Mainte-
Air Cleaner Housing (see Air Cleaner Housing Removal
in the Fuel System (DFI) chapter)
Water Hose Fitting Cover Bolts [A]
Water Hose Fitting Cover [B]
Thermostat Housing Bolts [C]
Thermostat Housing Cover [D]
Install the thermostat [A] in the housing so that the air
bleeder hole [B] is on top.
Replace the thermostat housing cover O-ring [A] with a
new one, and install it.
Install the thermostat housing cover [B].
Note that the thermostat does not move at the place
when installing the thermostat housing cover.
Torque - Thermostat Housing Bolts [C]: 6.0 N·m (0.61
kgf·m, 53 in·lb)
Run the hoses correctly (see Cable, Wire, and Hose Rout-
ing section in the Appendix chapter).
Replace the water hose fitting cover O-ring [D] with a new
one, and install it.
Install the water hose fitting cover [E].
Torque - Water Hose Fitting Cover Bolts [F]: 10 N·m (1.0
kgf·m, 89 in·lb)
Fill the radiator with coolant (see Coolant Change in the
Periodic Maintenance chapter).
Install the removed parts (see appropriate chapters).