TM 5-4320-302-146-17.CONNECTING ROD ASSEMBLY (CONT)Location/ItemActionRemarksREPAIR/REPLACEMENT19. Small-end bushReplace if scored, overheated, out-of-round, ordamaged. Replace if inside diameter (pressed in) oroutside diameter is beyond the tolerance limits.Replace if piston pin (new or acceptable) clearanceis outside the tolerance limits.20. Piston pinReplace if piston pin clearance in new or acceptablesmall-end bush is outside the tolerance limits.NOTEWhen replacing connecting rods, make sure color code on bottom ofbearing cap is the same as the replaced rod, indicating the same weightclass. The connecting rods within any weight class should not differmore than 1.058 ounce (30 grams).21. Connecting rodReplace if bent, warped, cracked, or damaged.Replace if bore for small-end bush is outsidetolerance limits. Replace if big-end bearing bore orside clearance is outside tolerance limits.6-135
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