TM 5-4310-362-14
PISTONS, CRANKSHAFT AND CENTRIFUGAL UNLOADER MODEL 20-904 (Cont)
LOCATION/ITEM
ACTION
REMARKS
4.
Wrist pin bearing
If bearing needs replacement,
If bearing is replaced, also replace
line up oil hole in bearing with
wrist pin.
oil hole in connecting rod.
5.
Pistons (9) and connect-
a. Assemble with wrist pin (8).
ing rods (10)
b. Wrist pin should be "tap" fit
by hammer.
6.
Connecting rod to
Tap to make sure rod is making
crankshaft
contact.
7.
Connecting rod cap (11)
a. Install with two screws (12)
and two lockwashers (13).
b. Torque to 8 ft-lbs.
c. Combined piston and con-
necting rod should turn
slowly on the crankshaft of
their own weight if bearing
adjustment is correct.
8.
Crankshaft assembly (14)
Install in crankcase.
with pistons, connecting
rods and oil ring (17)
9.
Oil seal (16)
Install with lip side toward crank-
case (15).
10. Weights (18), springs (19)
Assemble with shaft (21).
and rivets (20)
11. Weight retainer and shaft
a. Install in crankshaft (22) (left
assembly (21)
hand threads).
b. Tighten with a 5/8" open end
wrench. Do not bend wings
of weight retainer.
12. Rivets (20)
Lubricate with OE 10.
13. Spring (23)
Install in shaft (21).
14. Plunger (24)
a. Lubricate with OE 10.
b. Install.
8-22 Change 1
