Chapter 3 Fuel Injection
Equipment
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3.4JH3(B)(C)E
2-2-2
Inspection
of
governor
Inspection of governor weight assembly
(1) Replace the governor weight if it does not open and
close smoothly.
(2) Replace the governor weight
if
the contact surface with
governor sleeve
is
extremely worn.
(3) Replace
if
there
is
governor weight support/pin wear
or
the caulking is loose.
(4) Replace if the governor weight support stopper is ex-
cessively worn.
Inspection of governor sleeve
Contact
surface
w·1th
shifter
Sleeve
inner
dia.
Contact
surface
with
governor
weight
( 1) Replace the governor sleeve
if
the contact surface with
governor weight
is
worn or there is pitching.
(2) Replace the governor sleeve
if
the contact surface with
shifter is considerably worn
or
there is pitching.
(3)
II
the
governor
sleeve
does
not
move
smoothly
above the cam shaft due to governor sleeve inner dia.
wear
or
other reasons, replace.
Inspection of governor shaft assembly
(1)
Measure
the clearance between the
governor
shaft
and bushing, and replace
if it
exceeds the limit.
mm
Standard Clearance Limit
0.
065~0.
124 0.5
(2)
Inspect
the shifter
contact
surface, and replace the
shifter (always by removing the pin to disassemble)
if
it
is worn or scorched.
(3) Disassemble and replace throttle springs that are settl-
ed, broken or corroded by pulling the spring pin.
(4) Check link parts for bends
or
kinks that will cause mal-
functioning, and replace any parts as necessary.
NOTE:
1.
Side gap
on
top
of
governor lever shaft.
mm
Standard side gap
0.4
2.
Replace the governor lever, tension bar, bush-
ing, shifter
and
throttle spring as an assembly.
3-10
(5)
Inspection of springs
1) Check the governor spring and other springs and replace
if they are broken, settled
or
corroded.
2) Measure the free length of the governor spring, and
replace if it exceeds the limit.
See service data sheet for free length
of
governor spring.
-------
Free
length
------....i
Governor spring spec. table
Spring constant kg/mm
0.32
Free length
mm
12
2-3
Assembling governor
Inspect all parts after disassembly and replace any parts
as
necessary.
Before
starting
reassembly,
clean
new
parts and parts to be reused, and put them
in
order.
Make sure
to
readjust the unit after reassembly to obtain
the specified performance.
(1) Insert the governor weight assembly
in
the taper
portion at the end of the fuel pump camshaft, stopping
it with the hole
in
the fuel coupling ring or holding the
coupling with a vise, mount the rest, and tighten the
governor weight nut.
Governor weight
nut
tightening torque
kg-m
4.5~5.0
l',:inted
in
Japan
HINSHI-H8009
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