and tighten screws (61). Torque
screws (61) to 21 lb-ft (35 Nm).
Position the weights (60) and brackets
(59) on the inside face of gear wheel
(66). The heavy champered edges of
the brackets must face toward the
center of the gear wheel. Position
lockwashers (57) and screws (56).
Hand tighten screws (56) at this time.
The distance between the spring plates on the spring
support (58) and the camshaft must be equal on both
sides of the camshaft before screws (56) are tightened.
See Figure 6-28.
Tighten screws (56). Torque screws
(56) to 21 lb-ft (35 Nm).
Place shim (34) in inner spring plate
(53), using a light grease attach ball
(55) to inner spring plate (53). Place
the inner spring plate over one end of
spring (52). Using care, insert the
open end of the spring into the outer
spring plate (58) and press spring
assembly into recess in weights (60)
until the ball (55) snaps into place.
Repeat process for other side.
There should be no tension on governor springs; weights
should move freely and should have free movement of
1.0 - 1.5 mm before spring tension is noted. Adjust
move-ment of weights by use of shims (54) to obtain
correct amount of movement (see Figure 6-28).
crankcase. Remove clamp (tool No. 15,
Figure 2-1) hold-ing cam followers (tappets)
away from cam shaft.
Make sure gear wheel (21) on crankshaft and oil pump
gear wheel (52) mesh correctly when crankshaft gear
wheel (21) is installed.
(17) Figure 8-30, Sheet 4 of 10. Using screws
(48, 50), lock washers (47, 49) attach oil
pump (53) to crankcase. Attach oil pump
gear wheel (52) to oil pump shaft using nut
(51). Insert key (40) on crankshaft. Heat
gear wheel (21) to 1000C (2100), line gear
wheel up with key (40) and knock gear
wheel (21) onto crank-shaft.
(18) Figure 8-30, Sheet 5 of 10. Heat governor
hous-ing (9) to 800C (1750F) and press in
ball bear-ing (11). Install oil seal (1 la) and
oil seal (11 b) in governor housing (9).
Attach gasket (12). Prior to mounting
governor housing, install tool No. 31,
bushing for mounting governor housing
(crankshaft) and tool No. 32, bushing for
mounting governor housing (camshaft).
Insert guide pin (10) and install governor
housing (9) to crankcase (32).
(19) Install pins (20a, Figure 8-30, Sheet 4 of
10) in end of crankshaft. Fit sheave (20)
and attach sheave to crankshaft using
lockwasher (19) and screw (18). Torque
screw (18) to 88 lb-ft (120 Nm).
(20) Figure 8-30, Sheet 2 of 10. Using screws
(37) attach crank handle support (38) to
(21) Figure 8-30, Sheet 6 of 10. Using screws
(72) and lock washers (73) attach gasket
(75) and fuel feed pump cover (74) to
crankcase. Attach gasket (71) and large
side cover (70) to crank-case using lock
washers (69) and screws (68).
Oil holes in rod bearings and connecting rod must be in
(22) Figure 8-30, Sheet 4 of 10. Press top end
rod bearing (16) into rod (17). Position
bearings (15) in rod can and rod. Insert
rods (17) into crankcase and secure to
crankshaft and secure to crankshaft using
screws (14). Torque screws (14) to 55 Ib-ft