Toyota 2H Repair Manual page 205

Pump rpm
600
600
600
Pump rpm
1 . 9 2 0
2,000
2 , 0 5 0
Pump rpm
2 , 1 00
-
Inject i o n P u m p
F U E L S Y S T E M
B.
A d j u s t G o v e r n o r M a i n Spring
(a)
Measure the control rack p o s i t i o n .
V <l c u u m
kPa)
mmHg (in .Hg,
600 ( 2 3 . 6 2 , 80.0)
630 ( 2 4 .80, 84.0)
l OO.OJ
7 5 0 ( 2 9 . 5 3 .
Ib )
Remove t h e g o v e r n o r diaphr<lgm h o u s ing. a n d adjust
by
A d j u s t i n g shim
N O T E :
decrease in s h i m t h ickness and decrease with
Ie) Recheck the i n i t i a l position of the c o n t rol rack.
5_
A D J UST M E C H A N I C A L G O V E R N O R SECTION
A . Adjust Speed C o n trol Spring
tal Measure the c o n trol rack pasi lion.
Vacuum
m m H g (in Hg. kPaj
( t
7.72, 60.01
4 5 0
4 5 0 (1 7.72, 60.0)
4 5 0 ( 1 7 . 7 l , 60.0)
530 (20.87, 70.6)
A
(b)
B.
Adjust J d l i n g Spring
(a) Measure t h e control rack position.
Vacuum
kPe)
mmHg (in.Hg,
530 120,87, 70, 6 1
rack
C o n t rol
1 0 3 - 1 0.9 10. 4 0 6 - 0.429)
1 0 . 1 - 1 0. 7 (0 . 3 9 8 - 0. 4 2 1 1
7.3 - 8.9 (0. 2 8 7 - 0.350)
main
changing t h e spring adjusting s h i m .
thickness:
0.6 m m ( 0 . 0 2 0 i n . )
, , 0 m m (0.039
2.0 mm ( 0 . 0 7 9
3.0 m m
n
t rol r a c k p o s i t i o n w i l l i n C r e a s e w i t h a
T h e co
C O n t r o l rack position
1 0 4 - 1 0. 8 (0 . 4 0 9
9.6 - 1 0 . 4 (0. 3 7 8 - 0.409)
8,6 - 9 , 8 10 , 3 3 9 - 0 , 3 8 6 1
7.5 /0. 2 9 5 )
ju
d s t by t u r ning t h e speed control s c rew.
Control r a c k posilion
8 . 0 (0.3 l S)
F U - 7 7
position
{in.)
mm
In.)
in.)
(O., ' S
i n . )
an inc e
r a s e
.
mm lin.)
0.4 2 5)
or less
mm (in.)