TM 5-2410-241-23-1
0026
HEAD GASKET INSPECTION
00026
WARN I N G
Personal injury can result from hot coolant, steam and alkali. At operating temperature,
engine coolant is hot and under pressure. Radiator and all lines to heaters or engine
contain hot coolant or steam. Any contact can cause severe burns. Allow engine and
coolant to cool before slowly removing filler cap to relieve cooling system pressure.
Engine must be stopped and radiator cap is cool enough to touch with your bare hand.
Failure to follow this warning may result in injury or death to personnel.
7. Open door (Figure 13, Item 2) on machine.
8. Slowly remove cooling system cap (Figure 13, Item 1) from coolant tank (Figure 13, Item 3).
9. Start engine (TM 5-2410-241-10).
10. Inspect engine cooling system for intrusion of combustion gases by observing cooling system for bubbles as
engine warms.
a. If bubbles are present in coolant, then combustion gases may be entering the engine cooling system.
Replace the cylinder head gasket (WP 0108).
b. If no air bubbles are present, return to Troubleshooting.
Figure 13. Coolant Tank and Hoses.
0026
END OF TASK
