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5-4
MOW
TO
REASSEMBLE
0
Precaution
in
reassembling
Every and each part should be cleaned thoroughly. Especially, pay utmost care and attention to the clean-
7
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.
~Sequesnce and precautions in reassembling
5
-4-
1
CRANKSHAFT
1)
Fit the oil seal guide onto the end
of
the crank-
shaft, and insert the crankshaft into the crank-
case as shown in Fig.
21.
Note: In case of not using the oil seal
guide,
be
careful not
to
damage the
oil
seal
lip.
2)
Put woodruff key (for magneto) in place.
r
Fig.
21
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la
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