Jeep Cherokee 2000 Service Manual - page 1245
(b) Rotate the pump until 0.55 mm is indicated
on the dial indicator gauge. If while rotating the
pump the 0.55 mm specification is passed do not
attempt to rotate the pump in the opposite direc-
tion. You must rotate the pump back below the
0.25 mm specification and start the procedure over
from the start of the TDC procedure. This will pre-
vent a false reading due to gear backlash.
(c) Tighten the three pump mounting nuts to 30
N·m (22 ft. lbs.) torque.
(d) Recheck the dial indicator after tightening
the pump mounting nuts. Gauge should still be
reading 0.55 mm.
(14) Remove dial indicator and adapter tools.
(15) Install access plug and washer to rear of
injection pump.
(16) Install plug at timing gear cover.
(17) Install and connect the four high–pressure
fuel lines to the fuel injection pump. Also connect
fuel lines at the fuel injectors. For procedures, refer
to High–Pressure Fuel Lines in this group.
(18) Install electrical connector at engine coolant
temperature sensor.
(19) Connect electrical connector at fuel shutdown
solenoid.
(20) Connect the main engine wiring harness to
the glow plugs.
(21) Connect the fuel timing solenoid pigtail har-
ness to the engine wiring harness.
(22) Connect the overflow valve/banjo fitting (fuel
return line assembly). Replace copper gaskets before
installing.
(23) Connect the rubber fuel return and supply
hoses to metal lines at pump. Tighten hose clamps to
2 N·m (20 in. lbs.) torque.
(24) Install generator assembly.
(25) Install engine accessory drive belt. Refer to
Group 7, Cooling System for procedures.
(26) Install negative battery cable to battery.
(27) Start the engine and bring to normal operat-
ing temperature.
(28) Check for fuel leaks.
FUEL INJECTORS
Four fuel injectors are used on each engine. Of
these four, two different types are used. The fuel
injector used on cylinder number one is equipped
with a fuel injector sensor (Fig. 38). The other three
fuel injectors are identical. Do not place the fuel
injector equipped with the fuel injector sensor
into any other location except the cylinder
number one position.
REMOVAL
(1) Disconnect negative battery cable at battery.
(2) Thoroughly clean the area around the injector
with compressed air.
(3) Remove the fuel drain hoses (tubes) at each
injector (Fig. 39) being serviced. Each of these hoses
is slip–fit to the fitting on injector.
Fig. 38 Fuel Injector Sensor — #1 Cylinder
1 – NEEDLE MOVEMENT SENSOR
2 – FUEL INJECTOR (NUMBER 1 CYLINDER ONLY)
3 – COPPER WASHER
4 – SENSOR CONNECTOR
Fig. 39 Fuel Injector—Typical
1 – FUEL INJECTOR
2 – LINE FITTING
3 – HIGH-PRESSURE FUEL LINE
4 – FUEL DRAIN TUBES
XJ
FUEL SYSTEM—2.5L DIESEL ENGINE
14 - 19
REMOVAL AND INSTALLATION (Continued)