5-4
HOW
TO
REASSEMBLE
.Precaution in reassembling
Every and each part should be cleaned thoroughly. Especially, pay utmost care and attention to the clean-
liness of the piston, cylinder, crankshaft, connecting rod and bearings.
Scrape completely off carbons from the cylinder head and the upper part of the piston; especially the
carbon adhered in the groove of the piston ring should be carefully and completely taken out.
Carefully check the lip portion of every
oil
seal. If faulty one is found, replace it without any hesitation.
Apply enough oil
to
the lip portion of the oil seal when reassembling.
Replace all the gaskets with new ones.
Replace the key, pin, bolt, nuts, etc. with new one, if necessary.
Whenever tightening torque
is
specified, conform to the specified figures.
Apply oil to the revolutionary parts and friction surfaces, when reassembling.
Check and adjust the clearances of various portions and then reassemble.
When some main portions are assembled in the course of reassembling, turn
or
move the gadgets by hand
and pay attention to the frictional noise and resistance.
*Sequence and precautions in reassembling
5-4-1 GOVERNOR
SHAFT
1)
Insert the governor shaft into the crankcase.
2)
Place the clips
on
the governor shaft.
5-4-2 CRANKSHAFT
1) Inser the crankshaft into the crankcase as shown
.
Note: Be careful not to damage
the
oil
seal
lip.
in Fig.
20.
2)
Put woodruff key (for magneto) in place.
Shaft
Fig.
20
-16-
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