2006 NISSAN PATROL compression

Removal
1. Remove battery.
Disconnect electronic injection pump harness connectors.
2. Set No. 1 piston at TDC on its compression stroke.
TDC: Crankshaft pulley notch without painted mark
3. Remove fuel hoses (supply, return and spill) and injection
tubes.
4. Remove air duct and injection pump timing belt cover.
5. Remove injection pump timing belt.
Refer to EM section (``Injection Pump Timing Belt'').
6. Remove injection pump sprocket with Tool.
+Remove key from injection pump shaft and store safely.
SEF663V
SEF664V
SEF665V
ELECTRONIC FUEL INJECTION PUMP
EC-27

Symptom Matrix Chart
SYSTEM
Ð Basic engine
control systemSYMPTOM
Reference page
Feature of symptom, Check pointHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator lamp illuminates.
Can be detected by CONSULT?
Fuel cutNO START (with ®rst ®ring)
NO START (without ®rst ®ring)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATING
BLACK SMOKE
WHITE SMOKEWarranty symptom
codeAA AB AC AD AE AF AG AH AJ AK AL AM AP HA
Injection
timingAdvancedjj
++j+jj+jEC-47
Retardedjj
++j+jj+jEC-47
Electric injection pump
mainframe
++++jjjjj+jjj++jj+j jjjÐ*1
Injection nozzlejjjjjjj
+jj j++ +EC-22 *2
Glow systemjj
++ + +EC-151
Engine body
jj
++jjj+jj j++jjj+EM sec-
tion*3
EGR system
++ +EC-156
Air cleaner and ducts
++ +jMA sec-
tion*4
+; High Possibility Item
j; Low Possibility Item
*1: Insufficient or excess amount. Governor malfunction may be the cause.
*2: Depends on open-valve pressure and spray pattern.
*3: Caused mainly by insufficient compression pressure.
*4: Symptom varies depending on off-position of air duct, etc.
TROUBLE DIAGNOSIS Ð General Description
EC-48

ENGINE MECHANICAL
SECTION
EM
CONTENTS
PRECAUTIONS...............................................................1
Parts Requiring Angular Tightening .............................1
Liquid Gasket Application Procedure ..........................1
PREPARATION................................................................2
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................6
NVH Troubleshooting Chart Ð Engine Noise .............7
OUTER COMPONENT PARTS.......................................8
COMPRESSION PRESSURE........................................10
Measurement of Compression Pressure ...................10
OIL PAN.........................................................................13
Removal .....................................................................13
Installation ..................................................................14
TIMING BELT.................................................................15
Removal .....................................................................15
Inspection...................................................................17
Installation ..................................................................18
OIL SEAL REPLACEMENT..........................................20
TURBOCHARGER.........................................................23
Removal and Installation ...........................................23
Inspection...................................................................24CHARGE AIR COOLERS..............................................27
CYLINDER HEAD..........................................................28
Removal .....................................................................29
Disassembly...............................................................30
Inspection...................................................................31
Assembly ...................................................................37
Installation ..................................................................37
VALVE CLEARANCE....................................................40
Checking ....................................................................40
Adjusting ....................................................................41
ENGINE REMOVAL.......................................................43
Removal .....................................................................44
Installation ..................................................................44
CYLINDER BLOCK.......................................................45
Disassembly...............................................................46
Inspection...................................................................46
Assembly ...................................................................53
SERVICE DATA AND SPECIFICATIONS (SDS)..........56
General Speci®cations ...............................................56
Inspection and Adjustment ........................................56
EM

* Special tool or commercial equivalent
Tool number
Tool nameDescription
KV101151S0
Lifter stopper set
V1KV10115110
Camshaft pliers
V2KV10115120
Lifter stopper
NT041
Changing shims
EM03470000*
Piston ring compressor
NT044
Installing piston assembly into cylinder bore
ST16610001*
Pilot bushing puller
NT045
Removing crankshaft pilot bushing
KV10109300
Puller holder
NT628
a = 68 mm (2.68 in)
b = 8 mm (0.31 in) dia.
V1ED19601000
Compression gauge
V2ED19600600
Compression gauge
adapter (for glow plug
hole)
V3ED19600700
Compression gauge
adapter (for injector
hole)
NT742
Checking compression pressure
KV11100300
Nozzle holder socket
NT563
PREPARATION
EM-3

Measurement of Compression Pressure
1. Warm up engine sufficiently.
2. Disconnect injection tube on nozzle side and loosen injection
tubes on pump side. Release clamps on injection tubes.
+Use two wrenches to prevent delivery holder on pump side
from loosening.
3. Remove spill-tube assembly.
+To prevent spill tube from breaking, remove it by gripping
nozzle holder.
4. Remove all injection nozzles using Tool or a suitable tool.
5. Turn ignition switch OFF and disconnect harness connector
(black colored) at injection pump.
SEM702B
SEM703B
SEM704B
SEM705B
SEM789F
COMPRESSION PRESSURE
EM-11

6. Fit compression gauge adapter to cylinder head.
7. Crank engine and read gauge indication.
Crank speed: 200 rpm
Compression pressure:
Standard
3,040 kPa (30.4 bar, 31 kg/cm
2, 441 psi)
Limit
2,452 kPa (24.5 bar, 25 kg/cm
2, 356 psi)
Differential limit between cylinders
490 kPa (4.9 bar, 5 kg/cm
2, 71 psi)
8. If the pressure appears low, pour about 3 m!(0.11 Imp ¯ oz)
of engine oil through nozzle holes and repeat test.
For indications of test, refer to the following table.
Gauge indication during tests Trouble diagnosis
SEM857
+Piston rings are worn or
damaged.
SEM858
+If two adjacent cylinders
are low, gasket is dam-
aged.
+Valve is sticking.
+Valve seat or valve con-
tact surface is incorrected.
9. Replace nozzle gaskets and install injection nozzles.
New nozzle gasket installation direction is as shown.
Nozzle to cylinder head:
:59-69Nzm
(6.0 - 7.0 kg-m, 43 - 51 ft-lb)
SEM706B
SEM708B
COMPRESSION PRESSURE
Measurement of Compression Pressure
(Cont'd)
EM-12
First readingSecond
reading
Increased
reading
Same reading
maintained

10. Install spill tube by holding nozzle holder.
Spill tube nut:
:39-49Nzm
(4 - 5 kg-m, 29 - 36 ft-lb)
11. Install injection tubes using two wrenches as shown.
Injection tube:
:22-25Nzm
(2.2 - 2.5 kg-m, 16 - 18 ft-lb)
12. Initialize the ECM.
Refer to EC section (``HOW TO ERASE DTC'').
SEM704B
SEM702B
SEM703B
COMPRESSION PRESSURE
Measurement of Compression Pressure
(Cont'd)
EM-13

Checking
Check valve clearance while engine is warm and not running.
1. Remove rocker cover.
2. Set No. 1 cylinder at TDC on its compression stroke.
+Align pointer with TDC mark on crankshaft pulley.
+Check that valve lifters on No. 1 cylinder are loose and valve
lifters on No. 6 are tight.
If not, turn crankshaft one revolution (360É) and align as
described above.
3. Check only those valves shown in the ®gure.
No. 1 No. 2 No. 3 No. 4 No. 5 No. 6
INT EXH INT EXH INT EXH INT EXH INT EXH INT EXH
No. 1 cylin-
der at TDCjjj jj j
+Using a feeler gauge, measure clearance between valve lifter
and camshaft.
+Record any valve clearance measurements which are out of
speci®cation. They will be used later to determine the required
replacement adjusting shim.
Valve clearance for checking (Hot):
Intake
0.28 - 0.38 mm (0.011 - 0.015 in)
Exhaust
0.32 - 0.42 mm (0.013 - 0.017 in)
4. Turn crankshaft one revolution (360É) and align mark on crank-
shaft pulley with pointer.
5. Check only those valves shown in the ®gure.
No. 1 No. 2 No. 3 No. 4 No. 5 No. 6
INT EXH INT EXH INT EXH INT EXH INT EXH INT EXH
No. 6 cylin-
der at TDCjj jj jj
+Use the same procedure as mentioned in step 4.
6. If all valve clearances are within speci®cation, install the follow-
ing parts:
+Rocker cover
SEM790F
SEM799F
SEM634F
SEM800F
VALVE CLEARANCE
EM-41