2005 NISSAN NAVARA engine

EM-54
FUEL PUMP
5. Before fuel pump is installed, make sure that spacer and the 6
mm (0.24 in) dia. hole on coupling are aligned.
6. Insert fuel pump to the mounting position from the rear side of
the engine, and install the tightening bolts with seal washer.
CAUTION:
Be careful not to drop the seal washer into engine.
7. Using the extension bar and the TORX socket (size: E10) (com-
mercial service tool), tighten the tightening bolts of fuel pump.
8. Remove the sprocket holder [SST].
9. Using the TORX wrench [SST], turn the pump shaft gradually to
adjust the position of fuel pump sprocket. Then, insert the posi-
tioning stopper pin [SST] to the 6 mm (0.24 in) dia. hole of the
fuel pump sprocket through the pump body.
10. Remove the TORX wrench [SST].
11. Using the hexagon wrench [SST], tighten the sprocket tightening
bolt.
lWhen the washer of the fuel pump sprocket is removed,
install it with the marking “F” (front) facing the front of the
engine.
12. Pull out the positioning stopper pin [SST].
MBIA0016E
PBIC2438E
PBIC2405E
MBIA0049E
PBIC2404E

FUEL PUMP
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13. Install secondary timing chain. Refer toEM-73, "SECONDARY TIMING CHAIN".
14. Following steps below, install injection tube center. Refer toEM-44, "
INJECTION TUBE AND FUEL
INJECTOR".
a. Pre-set clip and insert rubber to injection tube center.
b. Pre-tight nut of injection tube center to fuel pump and fuel rail by hand. (until seal surface touched)
c. Adjust clip dimension and tight bolt for clip to intake manifold by tool.
d. Tight nut of injection tube center to fuel pump by tool.
e. Tight nut of injection tube center to fuel rail by tool.
15. Connect the harness connector to fuel pump.
16. Install fuel hoses. Refer toEM-44, "
INJECTION TUBE AND FUEL INJECTOR".
17. Hereafter, install in the reverse order of removal.
CAUTION:
When fuel pump is replaced with new one or another one, perform fuel pump leaning value clean-
ing before starting engine. Refer toEC-24, "
Fuel Pump Learning Value Clearing".

EM-56
ROCKER COVER
ROCKER COVER
PFP:13264
ComponentsEBS01EK4
lRefer toGI-10, "Components"for symbol marks in the figure.
Removal and InstallationEBS01E65
REMOVAL
1. Remove engine cover. Refer toEM-20, "INTAKE MANIFOLD".
2. Remove vacuum gallery and engine cover bracket on rocker cover and ventilation hose. Refer toEM-20,
"INTAKE MANIFOLD"andEM-15, "AIR CLEANER AND AIR DUCT".
3. Disconnect harness connector from fuel injector. Refer toEM-44, "
INJECTION TUBE AND FUEL INJEC-
TOR".
4. Following steps below, remove injection tube. Refer toEM-44, "
INJECTION TUBE AND FUEL INJEC-
TOR".
a. Put a paint mark or tag on injection tubes to identify each cylinder.
lUse a fuel-resistant method.
b. Remove injection tubes in order of 2-1-4-3 individually.
CAUTION:
Be careful not to allow leaked fuel to contaminate engine room. Especially, ensure to keep engine
mounting insulator clear of fuel.
5. Remove injection nozzle oil seal.
1. Nozzle oil seal 2. Rocker cover 3. Ventilation hose
4. Washer 5. Oil filler cap 6. Gasket
A. Refer to “INSTALLATION” in “ROCKER COVER” B. To ventilation hose
PBIC3440E

ROCKER COVER
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lUsing the flat-bladed screwdriver, pry flange to remove nozzle
oil seal.
6. Remove rocker cover.
lLoosen holding bolts in the reverse order of that shown in the
figure and remove.
7. Remove gasket from rocker cover.
INSTALLATION
1. Install new gasket to rocker cover.
2. Apply liquid gasket with tube presser [SST: WS39930000] on
locations shown in the figure.
lUse Genuine Liquid Gasket or equivalent.
3. Tighten holding bolts in numerical order shown in the figure.
Re-tighten to the same torque in the same order as above.
4. Install nozzle oil seal.
lInsert it straight until flange fully contacts rocker cover.
5. Install remaining parts in the reverse order of removal.
6. Before starting engine, bleed air from fuel piping. Refer toFL-5, "
Air Bleeding".
PBIC0944E
: Engine front
PBIC3441E
1 : Cylinder head
2 : Cylinder head rear cover
A : Liquid gasket application area
: Engine front
PBIC3442E
: Engine front
: 7.8 N·m (0.8 kg-m, 69 in-lb)
PBIC3441E

EM-58
ROCKER COVER
INSPECTION AFTER INSTALLATION
Start engine and increase engine speed to check for fuel leak and engine oil leak.
CAUTION:
Do not touch the engine immediately after stopped as engine becomes extremely hot.

CAMSHAFT
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CAMSHAFTPFP:13001
ComponentsEBS01EK5
lRefer toGI-10, "Components"for symbol marks in the figure.
CAUTION:
lThis engine will have a different valve arrangement from
normal DOHC 4-valve type engines. As both camshafts on
this engine have intake and exhaust camshafts, in this
chapter they are named as follows:
lRefer to the figure for intake and exhaust valve arrange-
ment.
(The camshafts have, alternately, either intake valve or an
exhaust valve.)
Removal and InstallationEBS01E66
REMOVAL
1. Drain engine coolant. Refer toCO-7, "Changing Engine Coolant".
2. Remove rocker cover. Refer toEM-56, "
ROCKER COVER".
1. Camshaft bracket 2. Camshaft (right side) 3. Camshaft (left side)
4. Signal plate 5. Rubber washer 6. Adjusting shim
7. Valve lifter 8. Camshaft sprocket 9. Cylinder head
10. Cylinder head rear cover 11. O-ring 12. Camshaft position sensor
Camshaft (right side) : Intake manifold side
Camshaft (left side) : Exhaust manifold side
PBIC3443E
SBIA0178E

EM-60
CAMSHAFT
3. Remove cylinder head rear cover, camshaft position sensor and rubber washer.
Loosen cylinder head rear cover mounting bolts in the reverse
order shown in the figure.
4. Remove fuel injector. Refer toEM-44, "
INJECTION TUBE AND FUEL INJECTOR".
5. Remove secondary timing chain. Refer toEM-73, "
SECONDARY TIMING CHAIN".
6. Remove camshaft sprockets and signal plate.
lLoosen the camshaft sprocket mounting bolts and signal plate
mounting bolt by fixing the hexagonal portion of camshaft.
7. Remove camshaft.
lPlace distinguishing marks on the right and left sides with paint.
lLoosen and remove the camshaft sprocket bolts in the
reverse order shown in the figure.
8. Remove adjusting shim and valve lifter.
lRemove by taking notice of the installation position, and place outside engine in order to prevent confu-
sion.
INSPECTION AFTER REMOVAL
Visual Check of Camshaft
lCheck the camshaft for one sided wear or scratches.
lReplace the camshaft if there are abnormalities.
PBIC3445E
JEM159G
JEM160G

CAMSHAFT
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Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
lMeasure the outer diameter of the valve lifter with the microme-
ter.
VALVE LIFTER BORE DIAMETER
lMeasure the bore diameter of the cylinder head valve lifter with
theinsidemicrometer.
VALVE LIFTER CLEARANCE CALCULATIONS
l(Clearance) = (Valve lifter bore diameter) – (Valve lifter outer diameter)
lIf out of standard, refer to the outer diameter and bore diameter standard values and replace valve lifter
and/or cylinder head.
INSTALLATION
1. Install valve lifter and adjusting shim.
lMake sure that these are installed in the same position as before the removal process.
2. Install camshaft.
lIdentify camshafts by the paint position and screw hole at the
rear end.Standard : 29.960 - 29.975 mm (1.1795 - 1.1801 in)
SEM961E
Standard : 30.000 - 30.021 mm (1.1811 - 1.1819 in)
PBIC0367E
Standard : 0.025 - 0.061 mm (0.0010 - 0.0024 in)
: Engine front
Camshaft (right side) Intake manifold side (1):
Paint is at position (C) (Blue) without screw hole (A).
Camshaft (left side) Exhaust manifold side (2):
No paint with screw hole (B).
PBIC3444E