TM 9-2815-237-34
Change 1
2-55
2-18. CONNECTING ROD AND PISTON REPAIR (Cont’d)
5.
Inspect connecting rod bolts (10) and nuts (11) for damage. Replace if damaged.
6.
Inspect bronze bushing (14) in small end of connecting rod (13) for damage. Replace connecting
rod (13) if damaged.
7.
Inspect piston pin (15) for galling, scoring, and damage. Replace piston (4) if scored, galled,
or damaged.
8.
Measure pin boss (16) inside diameter and piston pin (15) outside diameter to determine if clearance
is within specifications (table 2-2 or 2-3). If measurement exceeds specifications, replace piston (4).
9.
Measure piston pin (15) outside diameter and bushing (14) inside diameter to determine if fit to rod
is within specifications (table 2-2 or 2-3). If measurement exceeds specifications, replace connecting
rod (13).
10.
Check ring groove clearance. If measurement exceeds specifications (table 2-2 or 2-3), replace
piston (4).
11.
Repeat steps 1 through 10 for remaining pistons and rods.
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