TM 5-3895-370-14&P5-65. CRANKSHAFT REPLACEMENT/REPAIR (CONT).(10)Determine main bearing clearance as follows:(a)Install 10 bearings (1) in five bearing caps(2) and in cylinder block.(b)Install five bearing caps (2) and 10 screws(3). Tighten screws 130 lb-ft (176 Nm).(c)Measure and record main bore diametersat position C. Maximum diameter is3.2720 in. (83.1088 mm). Ifmeasurement exceeds limit, replacebearings. If measurement is still abovelimit, replace top bearing caps.(d)Subtract position A (recorded in step [8]) from position C (C A). Maximum clearance is 0.00475 in.(0.12065 mm). If measurement exceeds limit, replace crankshaft.(e)Remove 10 screws (3), five bearing caps (2), and 10 bearings (1).c. Installation.(1)If removed, install five piston cooling nozzles(16) in cylinder block (10).CAUTIONDo not apply grease on outerdiameter of bearing halves ordamage may result to bearing halves,related bearing caps, and crankshaft.(2)Lubricate four bottom rod bearing halves (15),thrust bearing half (14), and four bottom bearinghalves (13) on convex side only with generalpurpose grease.CAUTIONIf top and bottom bearing halves areexchanged, damage could result tocrankshaft journals.(3)Install four bottom rod bearing halves (15) on connecting rods (8).(4)Install thrust bearing half (14) and four bottom bearing halves (13) on cylinder block (10).(5)Install key (12) in crankshaft (1).5-272
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