TM 10-4320-310-14
5-11.
INSPECT/REPLACE CYLINDER (Continued)
4
Measure cylinder bore at 4 depths. A normal or new
bore diameter should be 2.8740 to 2.8774 inches
(73.00 to 73.01 mm). If wear limits for a normal bore
cylinder have been reached or exceeded, replace
cylinder and piston. If measurements on axis A and
B are different, cylinder is out-of-round or has high
spots. Replace cylinder and piston.
5
Check that the top and bottom piston faces are
smooth and flat. If damaged, replace cylinder and
piston.
INSTALLATION:
1
Install piston (1) in accordance with paragraph 5-12.
Apply lubricating oil to piston rings.
2
Check that piston rings are offset by 120 degrees.
3
Compress piston rings with piston ring clamp (2).
When Installing cylinder, make sure piston or
connecting rod does not knock against
crankcase. This could result in serious
damage to piston or connecting rod.
Use care when installing cylinder to prevent
damage to piston rings.
4
Apply lubricating oil to inside of cylinder (3) and
slowly mount cylinder on studs (4).
5
Remove piston ring clamp (2).
5-28
