TM 10-3950-672-24-2
Piston, Pin and Rod - Inspection
Inspect the piston for damage and excessive wear.
Check the top, ring grooves, skirt and pin bore.
Measure the piston skirt diameter as illustrated.
Minimum Diameter
101.823mm [4.0088 in]
Refer to page 5-187 for the limits of the oversize
Use a new piston ring to measure the clearance in the
ring groove.
Limits
Maximum Clearance
Top
(Naturally Aspirated): 0.150mm [0.006 inch]
Intermediate: 0.150mm [0.006 inch]
Oil Control: 0.130mm [0.005 inch]
Measure the pin bore.
Maximum Diameter
40.025mm [1.5758 in]
5-233