TM 5-3805-248-23-2
PISTON AND CONNECTING ROD MAINTENANCE - CONTINUED
0348 00
ASSEMBLY
CAUTION
Piston ring expander must be used to install rings. Use of any other tool could cause damage to piston lands.
NOTE
Check piston and connecting rod sets before assembly to ensure that parts are matched correctly.
1.
Use piston ring expander to install new oil ring (9) on
lowest groove on piston (4).
7
NOTE
The top and second piston rings are
8
marked "UP-1" and "UP-2". These marks
must be on top of ring when installed and
"UP-1" must be top ring.
2.
Use piston ring expander to install new piston ring (8),
9
facing up.
3.
Use piston ring expander to install new top piston ring
(7), UP-1 facing up.
4
4.
Stagger gaps in new piston rings (7 and 8) and new oil
ring (9) 120 degrees.
394-1169
5.
Position piston (4) on connecting rod (2) assembly. Be
sure bearing tab groove on connecting rod (2) is on
same side as valve cutouts in head of piston (4).
4
6.
Use clean oil to lubricate pin (11).
11
7.
Install pin (11) through piston (4) and bearing (12) in
10
connecting rod (2).
8.
Use retaining ring pliers to install two retaining rings
(10).
12
9.
Use clean engine oil to lubricate two bearings (6).
10.
Install one of two bearings (6) in connecting rod (2)
5
and remaining bearing (6) in cap (3). Slide two bear-
ings (6) into position. To prevent bending of bearings
2
(6), do not push on centers when installing.
11.
Install two bolts (5) in connecting rod (2).
6
3
1
394-1164
0348 00-10
