TM 10-4320-309-14
TM 4320-14/1
Figure 5-36. Measuring of Ring End Gap
j.
Measure piston ring end gap of each piston ring. Measure the ring end gap by using a new cylinder
which is free from wear. If a new cylinder is not available, then measure the end gap at the bottom of
the cylinder as this will be most free from wear. Push the piston ring only into the cylinder using the pis-
ton top. Replace any piston ring if end gap exceeds 0.039 inch (1.0 mm).
INSTALLATION:
NOTE
Any time piston is removed from engine, new piston rings
should be installed.
a.
Attach connecting rod assembly to piston by inserting piston pin (7). (Refer to para 5-10.)
Table 5-3 Piston Ring Top Identification Mark
identification
item
Mark
(on top)
1st Ring
T
2nd Ring
2T
Oil Ring
#1
Figure 5-37. Piston Ring Identification Mark
b.
When inserting the rings, the identification mark should face up.
5-37
