B
5-4
REASSEMBLY
PROCEDURES
0
PRECAUTIONS FOR REASSEMBLY
1)
Clean parts thoroughly before reassembly.
Pay most attention
to
cleanliness
of
piston, cylinder, crankshaft, connecting rod and bearings.
2)
Scrape
off
all
carbon deposits from cylinder head, piston top and piston ring grooves.
3)
Check lip of
oil
seals. Replace oil seal
if
the lip is damaged. Apply oil to the lip before reassembly.
4)
Replace all the gaskets with new ones.
5)
Replace keys, pins, bolts, nuts, etc.,
if
necessary.
6)
Torque bolts and nuts to specification referring
to
the
"TORQUE
SPECIFICATIONS".
7)
Apply oil to rotating and sliding portions.
8)
Check and adjust clearances and end plays where specified in this manual.
5-4-1
CRANKSHAFT
(1)
Install crankshaft on crankcase wrapping the
key-way with polyvinyl tape
to
avoid damage
to oil seal.
(2)
Install
woodruff
key for flywheel
on
crankshaft.
Fig.
5-24
5-4-2
PtSTON
AND
PISTON
RINGS
(1)
Install oil ring first, then second ring and top
ring.
Spread ring only far enough to
slip
over pis-
ton and into correct groove. Use care not to
distort ring.
Install second ring with punched mark beside
the
gap
face upward. (See Fig.
5-27)
OPEN
ENDS
OF
PISTON
RING
I
I
Fig.
5-25
-
31
-