(2) Installation.
(i) Secure muffler bracket (22) to pump
Note:
housing (29) with two lockwashers (23) and screws (24).
(j) Secure engine and pump to
When reassembling pump, use all new
vibration mounts (32) on pump base (31). Place a
seals and gaskets.
(a) If engine parts are to be
snubbing washer (33) between each engine and pump
foot and the vibration mounts. Secure with screws (34
disassembled, do not reassemble pump to engine until
and 35).
engine is completely reassembled.
(k) Remove the fabricated rotor locking
(b) If needle bearing (8, fig. 11-22) and
tool from the magneto rotor (30, fig. 11-15).
seal (9) were removed from bearing housing (7), insert
(l) Replace
starter
fan
housing
new bearing and seal as instructed in paragraph 11-13,
assembly (3) as described in step b(2), preceding.
step f(3).
d. Ignition Parts.
(c) Make sure needle thrust bearing
(1) Removal.
(27, fig. 11-20) and thrust bearing race (26) are in place
on crankshaft (29). Place fabricated seal assembling
(a) Remove the starter fan housing
sleeve (fig. 11-13) over end of crank-shaft. Lubricate
assembly (3, fig. 11-15) as described in step b(1), pre-
seal assembling sleeve, seal (9, fig. 11-22) and needle
ceding.
bearing (8)., Place crank-case gasket (6) in place, and
(b) Connect the fabricated rotor locking
assemble bearing housing to crankshaft and crankcase
tool (fig. 11-8) to the magneto rotor in the manner shown
(22, fig. 11-20).
Use two nuts to secure tool to
CAUTION
shouldered studs in rotor.
(c) With rotor blocked, move starter
Be sure screws used to secure
fingers (27, fig. 11-15) aside. Use a 1/2-inch socket
bearing housing to crankcase are
wrench through the hole in the rotor locking tool to
9/16-inch long (not 1/2 or 5/8-inch
loosen the rotor nut (23). Remove rotor nut (23),
long). Screw length is critical.
lockwasher (24), and flat washer (25). Screw the rotor
(d) Using new screws (10, fig. 11-22),
nut (23) part way back onto the end of the crankshaft to
clean screw threads and apply Locktite to threads before
protect the thread during removal of the rotor. Remove
installing screws. Tighten the screws alternately, and
and reposition the rotor locking tool so the jackscrew of
remove seal assembling sleeve from crankshaft.
the tool is centered over the shaft and lock nut as shown
(e) Attach impeller housing (12) to
in figure 11-17. Turn the jackscrew down until rotor pops
bearing housing (7) using four new sealing washers (13)
free of crankshaft taper. Remove all tools, fastenings,
and screws (14).
and rotor.
(f) Install shims (15) as necessary to
(d) Disconnect the high-tension lead
provide minimum clearance between impeller (17) and
(43, fig. 11-15) from the spark plug (41, fig. 11-20).
wear plate (19) without causing impeller (17) to rub
Remove the spark plug and gasket (42) from cylinder
against wear plate.
(43).
(g) Install new seal assembly (16), and
(e) Remove three screws (51, fig. 11-
then install impeller (17). While installing impeller, hold
15) which hold the stator Plate (52) to the crankcase and
magneto rotor of engine (30, fig. 11-15) with rotor
cylinder (22 and 43, fig. 11-20).
locking tool (fig. 11-8) as shown in figure 11-16.
(f) Remove the complete coil, stator
(h) Carefully place one new gasket (18,
plate, and attached parts. Remove the felt seal (53, fig.
Carefully place new gaskets (18 and 25) into sealing
the crankcase. Do not lose the rotor key which should
grooves in pump housing (29). Secure impeller housing,
be in the slot in the crankshaft.
wear plate (19), and pump housing together with four
screws (26).
11-24
