engine NISSAN PICK-UP 1998 Repair Manual

3. Depress accelerator pedal fully under no load and, at this
point, read the tachometer indication.
Maximum engine speed (Under no load):
5,000
+100
-200rpm
4. If indication is lower than specified maximum engine speed,
turn maximum speed adjusting screw counterclockwise 1 or
2 rotations. Then depress accelerator pedal to floor under no
load and, at this point, read indication.
5. If indication is still lower than specified speed, repeat step 4
above until specified engine speed is reached.
6. After adjustment, tighten lock nut securely.
7. Seal with a sealing wire or install a sealing cap.
Disassembly
Refer to ``VE INJECTION PUMP'' in EF section of Service
Manual for TD series diesel engine (1st Revision).
Load Timer Adjustment
1. After adjusting the timer stroke, find the control lever position
where the injection quantity is as specified and then fix the
control lever using the adjusting device (KV11282617).
2. Run the injection pump at the specified speed and then
adjust the governor shaft installation position so that the timer
stroke is as specified.
Refer to ``Injection Pump Calibration Standard'' in SDS for
the timer stroke.
SEF627I
MEF451B
MEF450B
INJECTION PUMPTD
Installation and Adjustment (Cont'd)
EC-183

Bleeding Fuel System
Air should be bled out of fuel system when injection pump
is removed or fuel system is repaired.
Protect pump and engine mounts from fuel splash with rags.
If engine will not start after bleeding air, loosen injection
tubes at nozzle side and crank engine until fuel overflows
from injection tube. Tighten injection tube flare nuts.
If the engine does not operate smoothly after it has started, race
it two or three times.
CAUTION:
Wipe up any fuel discharged while bleeding air during each
step.
lStep 1: Fuel filter and injection pump bleeding
1. Loosen air bleeder screw to injection pump.
2. Move fuel filter priming pump up and down until no further air
comes out of air bleeder screw.
3. Tighten air bleeder screw.
lStep 2: Fuel injection tube and spill tube air bleeding
1. Loosen injection tube nuts on nozzle holder side.
2. Move the priming pump up and down until no further air
comes out of the injection tube nuts.
3. Tighten the injection tube nuts.
:20-25Nzm (2.0 - 2.5 kg-m, 14 - 18 ft-lb)
SEF083K
DEF015
SEF307K
FUEL SYSTEM CHECKTD
EC-191

Description
When coolant temperature is lower than 50ÉC (122ÉF), the relay is turned on at the same time that the igni-
tion switch is turned on. From this time, the electric current flows through the glow plugs and heats them up
quickly. After T
1seconds have passed, the control unit turns off the indicator. The relay automatically turns
off after it has been on for T
2seconds or the cranking time, whichever is longer.
The relay remains on for T
3seconds after the ignition switch has returned to ``ON'' from ``START''. These
features improve the combustion performance of the engine after it has started.
When the coolant temperature is higher than 50ÉC (122ÉF), the relay is turned on only during engine crank-
ing.
T1: approx.2-6[sec.] (Varies with coolant temperature.)
T
2: 30 [sec.] [When coolant temperature is below 50ÉC (122ÉF).]
5 [sec.] [When coolant temperature is over 50ÉC (122ÉF).]
T
3: 600 [sec.] [When coolant temperature is below 50ÉC (122ÉF).]
0 [sec.] [When coolant temperature is over 50ÉC (122ÉF).]
SEF905V
QUICK-GLOW SYSTEMTD
EC-196

Wiring Diagram
TD25 ENGINE (LHD)
HEC571
.
EC±GLOW±01
QUICK-GLOW SYSTEMTD
EC-197

TD25 ENGINE (LHD)
HEC572
.
EC±GLOW±02
QUICK-GLOW SYSTEMTD
Wiring Diagram (Cont'd)
EC-198

TD25 ENGINE (LHD)
HEC573
.
EC±GLOW±03
QUICK-GLOW SYSTEMTD
Wiring Diagram (Cont'd)
EC-199

TD25 ENGINE (RHD)
HEC574
.
EC±GLOW±04
QUICK-GLOW SYSTEMTD
Wiring Diagram (Cont'd)
EC-200

TD25 ENGINE (RHD)
HEC575
.
EC±GLOW±05
QUICK-GLOW SYSTEMTD
Wiring Diagram (Cont'd)
EC-201

TD25 ENGINE (RHD)
HEC576
.
EC±GLOW±06
QUICK-GLOW SYSTEMTD
Wiring Diagram (Cont'd)
EC-202

Glow Control Unit Circuit Inspection (For
Cold Areas)
Roll up the floor sheet. Check the glow control unit.
POWER SUPPLY CIRCUIT
Turn ignition switch ON and check voltage between terminalV1
orV11and body ground.
Voltage: approx. 12V
GROUND CIRCUIT
Check continuity between terminalV12,V13,V17orV18and body
ground.
Continuity should exist.
VEHICLE SPEED SENSOR CIRCUIT
While running vehicle or lifting rear wheels in 2WD position,
check that voltage between terminal
V10and body ground fluctu-
ates.
Voltage: approx. 5V
ENGINE COOLANT TEMPERATURE SENSOR
CIRCUIT
Check continuity between terminalsV21andV19orV20.
Measure resistance to temperature approximately as shown in
``ENGINE COOLANT TEMPERATURE SENSOR'', ``Component
Inspection'', EC-209.
DEF022-A
.
DEC044
DEC018
DEC019
DEC020
QUICK-GLOW SYSTEMTD
EC-203