TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Coolant Thermostat (008-013)
Section 8 - Cooling System - Group 08
Page 8-13
Install (008-013-026)
CAUTION
Always use the correct thermostat, and never operate
the engine without a thermostat installed. The engine
can overheat if operated without a thermostat because
the path of least resistance for the coolant is through
the bypass to the pump inlet. An incorrect thermostat
can cause the engine to overheat or run too cold.
Position the thermostat as shown in the illustration.
"Package" the lifting bracket and thermostat gasket to the
thermostat and thermostat housing.
Make sure the gasket is aligned with the capscrew holes.
Install the capscrews and finger tighten.
The notched end of the rubber thermostat seal points away
from the cylinder head.
10 mm
Install the removed parts in the reverse order of removal.
Install the removed parts in the reverse order of removal.
Install the thermostat, thermostat seal, thermostat hous-
ing, gasket, lifting bracket, and three capscrews.
Torque Value: 24 Nm
[18 ft-lb]
13 mm, 16 mm
Install the alternator. Refer to Procedure 013-001.
Torque Value:
(A)
24 Nm
[18 ft-lb]
(B)
43 Nm
[32 ft-lb]
L-1069