TM 9-2320-302-34
0041 00-14
PISTON AND CYLINDER ASSEMBLY MAINTENANCE - CONTINUED
0041 00
INSTALLATION - CONTINUED
NOTE
Increase insufficient compression ring gap by filing or stoning ends of piston ring. File or stone both
ends of piston ring with cutting action from outer surface to inner surface to prevent chipping or peeling
of plasma or chrome plate.
Piston ring ends must remain square and outer edge chamfer must be approximately 0.015 in (0.381
mm).
12.
Measure compression ring gap of top ring as shown. Remove ring (16) from cylinder liner after measurement is com-
pleted. Repeat this procedure for each ring and record measurement. Allowable ring end gap is as follows:
a.
Fire ring 0.016-0.024 in (0.40-0.87 mm)
b.
Compression ring 0.32-0.051 in (0.81-1.30 mm)
c.
Oil control ring 0.016-0.032 in (0.40- 0.81 mm)
16