TM 10-3930-660-34 3-9.  CRANKSHAFT MAIN BEARINGS - REPLACE (Cont’d) o. Tighten  capscrews  (1)  evenly  in  the  sequence shown to 129 lb. ft. final torque. 2. CHECK    BEARING    CLEARANCE    FOR    MAIN BEARINGS 2 THROUGH 6. a. Remove   two   capscrews   (1)   and   bearing cap (2) from main bearings 2, 3, 4, 5, or 6. Remove one set of main bearings at a time. b. Remove   and   measure   plastigage.      Main bearing clearance must not exceed 0.00474 inch.  If bearing clearance exceeds the specified measurement, the appropriate oversize bearing set must be installed. CAUTION If crankshaft is turned in the wrong direction, the   tab   on   the   upper   bearing   half   will   be pushed   between   the   crankshaft   and   main bearing bore in the block.  This could cause damage to the block and the crankshaft. c. Install bearing removal/installation tool (App.  C, Fig. C-7) into oil hole in crankshaft journal for main bearing being removed. d. Slowly   turn   crankshaft   so   the   special   pin pushes    against    the    end    of    the    bearing opposite the tab, and upper bearing half (3) is out of the cylinder block. e. Remove    bearing    removal/installation    tool from crankshaft oil hole. f. Remove lower bearing half (4) from bearing cap  (2).    Keep  main  bearings  and  bearing caps together as a set. a.   3-72