10. ROCKER ARM ASSEMBLY
(1) Visual Inspection
Independent rocker arm supports are provided
for each of the cylinders. Lubrication of the
Check the rocker arm support, the shaft, and the
rocker arm
is
carried out by forced lubrication
rocker arm bushings for cracks.
-
lube oil fed under pressure from the lube oil
pump.
(2)
Inspecting by Testing Equipment
NOTES:
(I)
The rockers
am
bushings are press-fitted in position and when rhey are to be re-
placed rhey should again be press-firred. After they have been fitted, measure them
to be sure rhey me nor
noocked nor
is
there imy coniracrion
-
t
(2)
Place the push rod on a surface table to check rhem for straghmess.
(3)
Align the oil-port when replacing bushings
n
11.
INJECTION PUMP AND INJECTION
VALVE
1.:
i
2..
3.
4.
and No.
2
cylinders.
Standard
dimension
0.5504--0.5511
,14-0.018
0)
0.5518-0.5525
iQ.034
'14~.026'
0.OW6-0.0020
(0.016-0.052)
6.5157 (165.51
Item
Outer
diameter
of
rocker
arm
shaft
Inner
diameter
of
rocker
arm
bushing
Clearance
beween
rocker
arm
shaft
and
inner
diameter
of
rocker
arm
bushings
Length
of
push
rods
The nozzles are of semi-throttle type, to achieve
An
integrated.fuel pump, a Bosch
PFR2K
type
lower combustion noise (low rpm knocking)
with-
manufactured by Yanmar,
is
used for the No.
1
out impairing engine starting performance.
Replacement
limit
-0.0039 (-0.11
0.0039 10.1)
0.0059 (0.15)
-0.0787 (-2)
Teting
equipment
Micrometer
Cylinder
gauge
Calipers
Unit:
in
(mml
Illustration
.. .
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