5-4
HOW
TO
REASSEMBLE
.Precaution
in
reassembling
Every and each part should be cleaned thoroughly. Especially, pay utmost care and attention to the cleanliness 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 at-
tention to the frictional noise and resistance.
*Sequence and precautions in reassembling
5-4-
1
CRANKSHAFT
1)
Fit the
oil
seal guide onto the end of the crankshaft,
and insert the crankshaft into the crankcase as shown
in
Fig.
25.
NOTE:
In case
of
not
using the oil seal guide, be care-
ful
not
to
damage
the
oil
seal
lip.
2)
Put woodruff key (for magneto)
in
place.
I.
Fig.
25
-
27
-
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