TM 9-2815-225-34&P 3-38.  FLEXPLATE OR FLYWHEEL, FLYWHEEL HOUSING, AND REAR COVER REPAIR THIS TASK COVERS a.  Cleaning b.  Inspection INITIAL SETUP: APPLICABLE MODELS Automotive repairman MOS 63H All PREFERENCES (TM) None SPECIAL TOOLS None TROUBLESHOOTING REFERENCES Para. 2-8 SPECIAL TOOLS Magnetic crack detector, ST-1166 EQUIPMENT CONDITION Flexplate or flywheel, flywheel housing, and rear TEST EQUIPMENT cover removed (para. 3-25). None MATERIALS/PARTS SPECIAL ENVIRONMENTAL CONDITIONS Solvent, SD-3 (Appendix C, Item 30) None Rear main seal (15434) 211253 (Big Cam III only) GENERAL SAFETY INSTRUCTIONS Rear main seal (15434) 3006738 (Big Cam I only)    Wear protective equipment when cleaning with Rear cover gasket (15434) 40662-A compressed air. PERSONNEL REQUIRED LOCATION/ITEM ACTION REMARKS Use approved solvent in well-ventilated area. a.  Cleaning WARNING Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa).  Use only with effective chip guarding and protective equipment such as goggles or shield, gloves, etc.  Failure to comply may result in injury to personnel. Approved solvents may be flammable and will not be used near open flame.  Use only in well-ventilated area.  Failure to comply may result in injury to personnel. 1.   All parts Clean with SD-3 solvent and Scrape off any remaining dry with compressed air. gasket material from mating sur- faces. b.  Inspection NOTE Perform step 2 for M915/Big Cam I only. Perform step 3 for M915A1/Big Cam III only. 2.   Flywheel (4) and spacer Inspect for distortion, cracks, Use magnetic crack detector gear (5) and damaged gear teeth. (ST-1166).  Discard if distorted, cracked, or gear teeth are dam- aged. 3.   Flexdisk and ring Inspect for the following: gear (7) 3-170