Toro Power Plus P216V - Governor Cup and Timing Gears

IS PROPERLY
ASSEMBLED THE
DIMENSION SHOWN
ON DRAWING WILL
BE AS INDICATED
GOVERNOR CUP
GOVERNOR FLYBALL
5 BALL GOVERNOR 10 BALL GOVERNOR
FLYBALL LOCATIONS
FIGURE 10. GOVERNOR CUP DETAILS
GOVERNOR CUP
With the gear cover removed, the governor cup can be
taken
off after removing the snap ring from the camshaft
center pin. Catch the flyballs while sliding the cup
off
(Figure 10).
Replace with a new part any flyball which is grooved or
has a flat spot; the ball spacer if its arms are worn or
otherwise damaged; the gear/spacer assembly if loose
on gear hub, and the governor cup
if the race surface is
grooved
or rough. The governor cup must be a free-
spinning
fit on the camshaft center pin, but without any
excessive play.
When installing the governor cup, tilt the engine
so the
gear is up, put the flyballs in place (Figure
10), and
install the cup and snap ring on the center pin.
The camshaft center pin extends out
3/4 inch (19 mm)
from the end of the camshaft. This distance provides an
in-and-out travel distance of 7/32 inch
(5.6 mm) for the
governor cup, as illustrated. Hold the cup against the
flyballs when measuring. The camshaft center pin
cannot be pulled outward
or removed without damage.
If the center pin extends out too far, the cup will not hold
the flyballs properly.
If the distance is less than 7/32“
(5.6 mm), the engine will race, especially at no load.
Remove the center pin and press in a new pin.
CS-1238
TIMING GEARS
If replacement of either the crankshaft gear or the
camshaft gear becomes necessary, always install both
gears new.
The camshaft and gear must be replaced as an assembly.
Before removing the camshaft and gear assembly,
remove the cylinder head and valve assemblies.
To remove the crankshaft gear, first remove the snap
ring and retainer washer, then attach the gear pulling
ring using two
No. 10-32 screws (Figure 11). Tighten
the screws alternately until both are tight. Attach a gear
puller to the puller ring and proceed to remove the gear.
Each liming gear is stamped with
“O” near the edge. The
gear teeth must mesh
so that these marks exactly
coincide when the gears are installed in the engine.
When installing the camshaft gear and shaft assembly,
be sure the thrust washer
is properly in place behind the
camshaft gear. Then install the crankshaft retaining
washer and lock ring.