TM 9-2815-225-34&P
3-25. FLEXPLATE OR FLYWHEEL, FLYWHEEL HOUSING, AND REAR COVER REMOVAL
THIS TASK COVERS:
Removal
INITIAL SETUP:
APPLICABLE MODELS
PERSONNEL REQUIRED
All
Automotive repairman MOS 63H
SPECIAL TOOLS
REFERENCES (TM)
None
None
TEST EQUIPMENT
TROUBLESHOOTING REFERENCES
None
Para. 2-8
MATERIALS/PARTS
EQUIPMENT CONDITION
Gasket (15434) 40662-A
Cylinder head assemblies removed (para. 3-24).
Two lockwashers (96906) MS35338-46
(M915/Big Cam I)
SPECIAL ENVIRONMENTAL CONDITION
Preformed packing (15434) 137075
Work area clean and away from blowing dirt and
(M915/Big Cam I)
dust
Eleven preformed packings (15434) 172648
(M915/Big Cam I)
GENERAL SAFETY INSTRUCTIONS
Seal (01212) M39807
Use extreme caution during disassembly; engine
Four lockwashers (96906) MS35338-45
components are heavy.
LOCATION/ITEM
ACTION
REMARKS
Removal
WARNING
Use extreme caution during disassembly; engine components are heavy. Failure to comply
may result in injury to personnel.
NOTE
M915/Big Cam I engines are equipped with a "wet" flywheel housing which is sealed
with a preformed packing (O-ring seal) on crankshaft and eleven preformed packings
between flywheel housing and cylinder block.
Perform steps 1 through 4 for M915/Big Cam I only.
Perform step 11 for M915A1/Big Cam III only.
1.
Six screws (11) and
Remove from crankshaft (22) and
washers (12)
flywheel (7).
2.
Two 5/8-18 x 6 in. studs (23)
Install on two opposite holes on
The studs will provide support for
crankshaft (22) until fully seated.
flywheel (7) during removal.
3.
Two 1/2-13 x 6 in. screws (24)
Install on flywheel (7) in opposite
Screws (24) are used as jacking
threaded holes provided until in
screws.
contact with face of crankshaft (22).
4.
Flywheel (7)
Remove from crankshaft (22) by
Have assistant hold on to flywheel
alternately turning two 1/2-13 x
during removal. Remove 5/8-18 x
6 in. screws (24.
6 in. studs (23) from
crankshaft (22), and remove
1/2-13 x 6 in. screws (24) from
flywheel (7).
3-56
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