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 TM 55-1905-223-24-3
2-42. Replace/Repair Exhaust Manifold Group.
This task covers:
a. Removal,
b. Repair,
c. Replacement
INITIAL SETUP
Tools
Equipment Condition
Tool kit, general mechanic's rail
Cooling System drained (Table 2-1,
and marine diesel engines,
Item 24).
Turbocharger removed (paragraph 2-30).
Lifting sling P/N 3375958
Air crossover piping to aftercooler
Lifting fixture P/N 3822512
removed (paragraph 2-41).
Torque wrench kit P/N 3377216
Water filter removed (paragraph 2-27).
Thermostat housing removed
Materials/Parts
Lube oil bypass filter removed
Emery cloth, Item 12, Appendix C
Lubriplate, Item 28, Appendix C
Air supply secured (port).
Gaskets P/N 3020943 and 3029032
Battery banks disconnected (starboard).
Preformed packing P/N 212161/178937
Exhaust manifold mounting guide studs,
Item 48, Appendix C
Anti-seize, pipe thread compound
Item 9, Appendix C
REMOVAL
a. Remove the drain cock (1, Figure 2-50) from the exhaust manifold (3).
WARNING
Because this assembly weights more than 50 lb (23 kg), two soldiers will be required to
lift the exhaust manifold assembly to avoid personal injury.
b. Loosen and remove two hexagon head capscrews (6), lockwashers (7), and flat washers (8) and remove the
water transfer connection (9) and preformed packing (5) and gasket (10). Discard preformed packing and
gasket.
c. Remove two end hexagon head cap screws (11) and lockwashers (12) on the exhaust manifold (3), and
install two exhaust manifold threaded guide studs.
2-141
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