Toyota 1C - Adjustment of Injection Pump

FU-36
FUEL SYSTEM - Injection Pump
CV. CT (w/ HAC)
17203
26 . INSTALL IDLf -UP
Install the idle-up with three bolts.
2 7. REMOVE IN J ECTION PUM P FROM STA NO
28. PERFORM A IR TIGHT TEST
(al Replace the overllow screw with a bolt.
(bl Connect an air hose to the fuel inlet hole and sub-
merge the injection pump in diesel fuel.
(cl Apply 1.5 kg/ cm• (21 psi. 147 kPal of pressure and
confirm that there are no leaks.
(di Next check that there are no leaks with 5.0 kg/cm>
(71 psi. 490 kPal of pressure applied .
29 . INSTALL WOODRUFF KEY ON DRIVE SHAFT
FUEL SYSTEM - Injection Pump
FU-37
•nos
ADJUSTMENT OF INJECTION PUMP
1. PRE-TEST CHECK AND PREPARATION
(al The specifications for test nozzle and nozzle holders
are as follows.
Test nozzle: ON 12 SD 12
Test nozzle holder valve opening pressure :
145 - 15 5 kg/cm'
(2.0 62 - 2 ,20 5 psi. 14 ,220 - 15 .200 kPa)
(b) Check the accuracy of the tachometer .
Allowabl e error: ± 40 rpm
(cl Install the angle gauge stand.
(di Mount the injection pump body on the pump tester.
NOTE: Place a mark on the key groove portion of the
coupling.
(e) Install an injection pi pe with the following specifica-
tions.
Outer diameter: 6.0 mm (0.236 in.I
Inner diamete r : 2.0 mm (0.079 in.I
Length: 840 mm (33.07 i n.)
Minimum bending radius : More t han 25 mm (0.98 in.I
(fl Connect the fuel inlet pipe with an adapter.