Toyota 3b Repair Manual page 135

;
FU-32
FUEL SYSTEM
-
lnjection Pump
FU21
19
7.
INSPECT PICKUP SENSOR
Using
an
ohmmeter, measure
the
resistance
between
terminals.
Resistance:
6OO
-
8OO O
lf
not
within
specification, replace the sensor.
INSPECT ACTUATOR FOR IDLE.UP
Apply vacuum and check that the actuator rod
moves.
lf
the
actuator does
not work,
replace
the
actuator
necessary.
ADJUST PLUNGER SPRING SHIM
(a)
lnstall the following parts to the distributive
head.
(1)
Two plunger spring guides
(21
Two upper spring seats
(3)
Two plunger springs
(41
Lower spring seat
(5)
Upper plunger plate
(6)
Lower plunger plate
(71
Pump plunger
HINT:
Do not assemble
the plunger spring shims at
this
time.
(b)
Using calipers, measure clearance
A
indicated in
the
figure.
(c)
Determine
the
shim size
by
using
the
following
formula and chart.
New shim thickness
=
5.8
-
A
A
. . . . Plunger position measured
Shim selection
chart
Measured
clearance
Shim
thickness
Measured
clearance
Shim
thickness
More than
5.3 (O.2Oe)
0.5
(o.o2o)
4.3
-
4.5
(o.169
-
0.1771
1.5
(0.059)
5.0
-
5.2
to.196
-
0.205)
o.8
(0.o31)
4.O
-
4.2
(0.157
-
0.165)
1.8
(0.o71)
4.8
-
4.9
(0.189
-
0.193)
1.0
(0.039)
Less
than
3.9
(0.154)
2.O
(0.079)
4.6
-
4.7
(0.181
-
0.185)
1.2
(o.o47l
HINT:
o
For
a
measurement between listed sizes, use the
nexl
larger size. Ex.
lf
thickness
is
1.1mm (O.O43
in.)
by
calculation, use a
1.2 mm (O.O47 in.) shim.
o
Select
two shims which
have
the
same thickness.
8.
9.
FUOl87
FUO188
mm
(in.l