TM 10-3930-660-34 3-8. CRANKSHAFT - REPLACE/REPAIR (Cont’d) WARNING Be sure engine is securely attached to engine stand.  If engine falls from the stand, serious bodily injury could occur and the block and crankshaft could be damaged. 2.   CHECK THAT ENGINE IS SECURELY ATTACHED TO THE ENGINE STAND, THEN TURN ENGINE STAND SO THAT CRANKSHAFT IS UP. 3.   REMOVE OIL SUCTION TUBE (5). a. Remove two capscrews (3) and capscrew (4). b. Remove oil suction tube (5) and gasket (6). Discard gasket (6). 4.   REMOVE PISTON CONNECTING ROD CAPS (7) AND BEARINGS (10 AND 11). a. Turn crankshaft until two pistons are bottom center. b. Mark cylinder number onto each connecting rod cap (7). CAUTION Be careful not to scratch or damage crankshaft when removing connecting rod caps and upper half of bearings. Any damage to the crankshaft could result in premature engine failure. 3-52