TM 5-3805-262-34INSPECTION AND REPAIR (SHEET 2 OF 2)(3)(4)(5)(6)Measure piston pin bore in piston (3) using bore gage and micrometer.Subtract measurement recorded in step (1) above to obtain piston pin boreclearance. If clearance exceeds 0.0021 inch, replace piston (3).Use thickness gage to checkside clearance of oil ring (6).If side clearance exceeds0.0035 inch, replace piston(3).In same manner as above,measure side clearance ofcompression rings (4 and 5). Ifside clearance exceeds 0.006inch, replace piston (3).Use micrometer to measure piston (3)diameter at bottom of piston, perpen-dicular to piston pin bore. Replacepiston if diameter is not between4.6178 to 4.6198 inches.NOTEReplace an item if inspectionindicates need for replacement.(7)Inspect retaining rings (7) fordamage or loss of resiliency.(8)Inspect connecting rod (2) forcracks, damage, wear, scoring, orpitting.(9)Inspect inserts (10) for pitting,flaking, cracking, or evidence ofoverheating.4-47
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