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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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