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STD EQUIPMENT ! SPARE PARTS
- Top ring
’ Taper
\
Second ring
Taper
‘\
\
Oil ring
I
Fig. 72-72
Taper
I
. \ ‘,\
x.
Undercut :.
q \ . .
1244 INSTALLING THE CRANKCASE
1) The connecting rod is put into the cylinder while
holding it with the piston ring guide. as shown in Fig.
lo-13 (in the case that a piston ring guide is not
available, press rings inward with fingers and at the
same time. strike down the piston. using a wooden
block). The connecting rod must be mounted in
place with its @ and MA marks directed to the ball
bearing side of the crankcase.
NOTE: Apply a sufficient quantity of oil to the
piston rings, connecting rod surfaces, and cylinder.
NOTE: The top, second and oil rings are fitted to
the piston with their ring joints arranged 90’ off each
adjacent joint.
Fig. 72-73
12-4-5 INSTALLING THE CONNECTING ROD
MAJOR END CAP
1
j
Manually turn the crankshaft until the piston reaches
top dead center. Gently strike down the piston head
until the connecting rod touches the crankpin to
install the connecting rod major end cap.
3) The cap is installed with the 011 scraper positioned
right-downward. (See Fig. 13-14.)
NOTE: Be sure to use a new lock washer; and care-
fully bend the washer correctly.
NOTE: When the cap has been installed, turn the
crankshaft to see if the connecting rod moves smooth-
Iv.
NOTE: The correct torque for installing the connect-
ing rod major end cap is 60 to 80 kg-cm.
NOTE: See Table 72-2 for details regarding the
clearances between the piston, piston rings, and
connecting rod and their counterparts.
Fig. 72-74
OIL SCI
GUIDE
RAPER
-40-