Adjustment Of Injection Pump; Pretest Check And Preparation - Toyota 1PZ Repair Manual

FU-70 FUEL SYSTEM Injection Pump

ADJUSTMENT OF INJECTION PUMP

1.

PRETEST CHECK AND PREPARATION

(a) The specifications for test nozzle and nozzle holders
are as follows.
Test nozzle:
Test nozzle opening pressure:
145-155 kg/cm
(2,062- 2,205 psi, 14,220-15,200 kPa)
(b) Check the accuracy of the tachometer.
Allowable error:
(c) Install the angle gauge stand.
(d) Mount the injection pump body on the pump tester.
HINT: Place a mark on the key groove portion of the
coupling.
(e) Install an injection pipe with the following specifica-
tions.
Outer diameter:
Inner diameter:
Length:
Minimum bending radius: 25 mm (0.98 in.) or more
(f) Remove the fuel inlet hollow screw.
(g) Connect the fuel inlet pipe with an adapter.
DN12SD12 (NIPPONDENSO)
2
± 40 rpm
6.0 mm (0.236 in.)
2.0 mm (0.079 in.)
840 mm (33.07 in.)