Toyota 1HD-FT Repair Manual page 177

EG-164
ENGINE - FUEL SYSTEM
,EG
14_ ADJUST BOOST COMPENSATOR
CHARACTERISTIC
(a) Apply 67.2 kPa (503.7 mmHg. 19.83 in.Hg) of vacuum
to the SICS actuator.
(b)
w/o
BACS,
Apply 40 kPa (0.41 kgf/cm
2
,
5.8 psi) of pressure to
the boost compensator.
(e)
w/
BACS,
Apply 79 kPa (0.81 kgf/cm
2
•
11.5 psi) of pressure to
the boost compensator.
(d) Measure the injection volume.
wI
BACS:
Pump
No. of musuring Elch injection volume
'Pm
Itrok...
cc Icu
in.}
12.56 14.16
720 200
(0.76 - 0.86)
w/o BACS:
a
_____ +b _
,
I
IL
'0'
-np~u=m=p~,=p=m:-----'--
Pump No. of m...uring Each injection volume
,pm
strokes cc (cu in.)
12.70 14.30
720
200
(0.17 - 0.87)
(e) Using a screwdriver. adjust the injection volume by
the guide bushing.
HINT: When the guide bushing is turned clockwise, as
seen from above, the injection volume will increase.
15. CHECK FOR CHARACTERISTiC TENDENCY
(a) Apply 67.2 kPa (503.7 mmHg, 19.83 in.Hg) of vacuum
to the SICS actuator.
(b)
w/o
BACS,
Apply 15.7 kPa (0.16 kgf/cm
2
,
2.3 psi) of pressure to
the boost compensator.
(e)
w/
BACS,
Apply 41.2 kPa (0.42 kgf/cm
2
,
6.0 psi) of pressure to
the boost compensator.
(d) Measure the injection volume.
wi
BACS:
a
e~-f-
w/o
BACS:
Pump
No. of mfIBiuriog
beh injection volume
'Pm strokls
ee leu in.)
8.02 - 9.22
720
200
10.49 - 0.56)
Pump
No. of mllsuring rleh injection volume
'pm strokes
ee leu in.)
8.80 10.00
720
200
(0.5.4 - 0.611
d
•
E
,
-0
'--l'b,,-/
>
,
.9 '-- _
~
Boost Pressure-
'2
fal
"' < 11""
lult·lM<I
,,,,,.;1_
~.~
II>J
Adl",'lu~
_ ..........".,
"'1«'_ """'_
(cl ........'c""'''.. ''''!1~
-~
(dl""'''''_c_ _
c........."''''
1.1 AdI ",
_OCOfr"llOC'_""" 11011
.....