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 TM 55-1905-221-14-4
6-40. FLYWHEEL HOUSING - MAINTENANCE INSTRUCTIONS.
a. The flywheel housing is a one-piece casting, mounted against the rear cylinder block end plate, which provides a
cover for the gear train and the flywheel. It also serves as a support for the starting motor and the Marine Gear.
b. The crankshaft rear oil seal, which is pressed into the housing may be removed or installed without removing the
housing (paragraph 3-43).
This task covers:
a. Removal
b. Inspection
c. Installation
INITIAL SETUP :
Test Equipment
References
Concentricity test
Para 6-25
Oil Pan Removed
gages J9737
Para 4-30
Electric Starter Motor
Removed
Para 4-35
Hydrostarter Motor
Removed
Equipment
Special Tools
Condition Condition Description
Paragraph
Chain hoist
Hammer (soft)
Torquematic Marine Gear
Studs (four)
Removed
1/2-13 X 3-1/4 lg.
6-25
Oil Pan Removed
4-35
Hydrostarter Motor Removed
6-22
Propulsion Unit Removed
Tools
4-30
Electric Starter Motor
Removed
General Mechanic's Tool Kit
NSN 5180-00-629-9783
Material/Parts
Special Environmental Conditions
Gasket kit P/N 5193113
NONE
Engine oil
Personnel Required
General Safety Instructions
2
NONE
6-905
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