TM 5-3895-370-14&P5-63. CYLINDER BLOCK REPAIR (CONT).(2)Measure top surface of cylinder block forflatness at each position B. Variancemeasurement must be no greater than 0.002 in.(0.051 mm). If measurement is beyond limit,replace cylinder block.(3)Check camshaft bores for scoring and excessivewear. If severe damage is found, replacecylinder block.NOTELimits below are for bores 2 and 5only.(4)Check camshaft bores at position C. Normalmeasurement must be no greater than 2.1324in. (54.1630 mm). If measurement is beyondlimit, replace cylinder block.(5)Check tappet bores for scoring or excessivewear. If damaged is excessive, replace cylinderblock.(6)Measure tappet bores at position D. Normalmeasurement is 0.630 to 0.632 in. (16.00216.053 mm). If measurement is less than limit,ream out tappet bores to size. If measurementis greater than limit, replace cylinder block.5-254
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