S.G
GENERAL
92.4mm STROKE
SERIES
WSM.0109A
Varve
arrengernent
Adjustable
(7)
Check
Point
of
Every
800
hours
D1403-B(E) V1903-B(E)
D1703-B(E) V2203-B(E)
Checkina Valve Clearance
IN.
00
0
0
00
I
EX.
0
0
00
I
A109F020
2nd
3 rd
4th
5th
I
0
0
00
0
0
@J
01
85nF10020
(1) Projection
(2)
TC
Mark Line
(3) Valve Clearance
IMPORTANT
0
Valve clearance must be checked and adjusted
when engine
is
cold.
1.
Remove the head cover.
2.
Align the
"ITC"
mark on the flywheel and
projection
(1)
on the housing
so
that the No.7
piston comes to the compression or overlap top
dead center.
3.
Check the following
valve
clearance marked with
"off
using
a
feeler gauge.
4.
If
the clearance
is
not within the factory
specifications, adjust with the adjusting screw.
I
I
bgry
I
0.18to0.22rnrn
0.0071
to
0.0087 in.
I
Valve clearance
~
NOTE
0
The
"TC"
making on the flywheel
is
just for No.1
cylinder. There
is
no
"TC"
marking for the other
cylinders.
0
No.1 piston comes to the T.D.C. position when the
"TC" marking
is
aligned with the projection in the
window on flywheel-housing. Turn the flywheel
0.26
rad.
(1
5")
clockwise and counter-clockwise to
see
if
the piston
is
at the compression top dead
center or the overlap position. Now referring to
the table below, readjust
the
valve clearance.
(The piston
is
at the top dead center when both
the In. and
EX
valves do not move;
it
is
at
the
overlap position when both the valves move.
0
Finally turn
the
flywheel
6.28
rad.
(360")
and
aligne
the "TC" marking and
the
projection
perfectly. Adjust
all
the other valve clearance
as
required.
0
After turning
the
flywheel counterclockwise twice
or three times, recheck the valve clearance.
0
After adjusting the valve clearance, firmly tighten
the lock nut of the adjusting screw.
Enaine Model
I
I
cylinder Loca-
tion
of
piston
corn
press
-ion top
dead
center
When
No.
1
piston
is
overlap
position
-
EX.
0
-
0
s-43
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