ARMY   TM   9-2805-262-14 AIR  FORCE  TO  38G2-90-1 NAVY   NAVFAC   P-8-613-14E 6-14. Crankcase. This  task  covers: Replace INITIAL  SETUP Tools Equipment   Condition General  Mechanic’s  TOOI Kit (Item 1, Appendix B) Intake manifold removed (para. 4-38). Cylinder  heads  removed  (para.  5-7). Materials/Parts Piston  and  connecting  rod  removed  (para.  5-22). Camshaft  removed  (para.  6-12). Rags,  Wiping  (Item  7,  Appendix  D) Crankshaft  removed  (para.  6-13). Solvent,  Drycleaning  (Item  8,  Appendix  D) Seal Kit  (NSN 2805-00-937-0947) a.Replace   (figure 6-10) WARNING Drycleaning  solvent  PD-680  used  to  clean  parts  is  potentially  dangerous  to  personnel  and property. Avoid repeated and prolonged skin contact. Do not use near open flame or excessive heat. Flash point of solvent is 100°F-138°F (38°C-60°C). (1) Clean crankcase (1) with drycleaning solvent and dry thoroughly. (2) Inspect crankcase (1) for cracks, and the cylinders (2) for wear, and replace a cracked, worn, or otherwise damaged crankcase. Refer to table 6-2 for wear limits. (3) Remove crankshaft bearing (3) and replace. (4) Remove breaker point shaft bearing (4) and replace. (5) Inspect oil seal (5) and replace if worn or otherwise damaged. (6) Inspect flywheel housing mounting studs (6) and (7) and replace if threads are damaged. 6 - 22