2007 INFINITI QX56 oil

EM-26
< SERVICE INFORMATION >
OIL PAN AND OIL STRAINER
1. Install the oil pan (upper) using the following steps.
a. Apply liquid gasket thoroughly as shown.Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-
45, "Recommended Chemical Product and Sealant".
CAUTION:
Apply liquid gasket to outside of bolt hole for the hole
shown by .
b. Install new O-rings to the oil pump and front cover side.
c. Tighten the bolts in numerical order as shown.
2. Install the oil strainer to the oil pan (upper).
3. Install the oil pan (lower).
a. Apply liquid gasket thoroughly as shown. Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-45, "
Recommended Chemical Product and Sealant"
b. Tighten the oil pan (lower) bolts in numerical order as shown.
KBIA2470E
KBIA2469E
M6 × 30 mm (1.18 in) : No. 15, 16
M8 × 25 mm (0.98in) : No. 1, 3, 5, 7, 11, 13
M8 × 45 mm (1.77 in) : No. 2, 4, 6, 8, 10, 14
M8 × 123 mm (4.84in) : No. 9, 12
PBIC2553E
KBIA2471E
PBIC2595E

OIL PAN AND OIL STRAINEREM-27
< SERVICE INFORMATION >
C
DE
F
G H
I
J
K L
M A
EM
NP
O
4. Install the oil pan drain plug.
5. Install engine assembly. Refer to
EM-74, "
Removal and Installation".
• Do not fill the engine oil for at least 30 minutes after oil pan is installed.
INSPECTION AFTER INSTALLATION
1. Check engine oil level and add engine oil if necessary. Refer to LU-8, "Inspection".
2. Start the engine, and check for leaks of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check engine oil level again.

EM-28
< SERVICE INFORMATION >
IGNITION COIL
IGNITION COIL
Removal and InstallationINFOID:0000000003531529
REMOVAL
1. Remove the engine room cover using power tool. Refer to EM-12, "Removal and Installation".
2. Disconnect the harness connector from the ignition coil.
3. Remove the ignition coil. CAUTION:
Do not shock ig nition coil.
INSTALLATION
Installation is in the reverse order of removal.
1. Ignition coil 2. Spark plug
WBIA0796E

SPARK PLUGEM-29
< SERVICE INFORMATION >
C
DE
F
G H
I
J
K L
M A
EM
NP
O
SPARK PLUG
Removal and InstallationINFOID:0000000003531530
REMOVAL
1. Remove the ignition coil. Refer to
EM-28, "Removal and Installation".
2. Remove the spark plug using suitable tool.
INSPECTION AFTER REMOVAL
• Do not use a wire brush for cleaning.
• If the spark plug tip is covered with carbon, a spark plug cleaner may be used.
1. Ignition coil 2. Spark plug
WBIA0796E
SEM294A
SMA773C
Cleaner air pressure : Less than 588 kPa (5.9 bar, 6 kg/cm2, 85 psi)
Cleaning time : Less than 20 seconds

EM-32
< SERVICE INFORMATION >
FUEL INJECTOR AND FUEL TUBE
7. Remove the fuel injector from the fuel tube using the followingsteps.
a. Spread open and remove the clip.
b. Remove the fuel injector from the fuel tube by pulling straight out.
CAUTION:
• Be careful with remaining fuel that may leak out from fueltube.
• Do not damage injector nozzles during removal.
• Do not bump or drop fuel injectors.
• Do not disassemble fuel injectors.
8. Remove the fuel damper from each fuel tube.
INSTALLATION
1. Install the fuel damper to each fuel tube using the following steps.
a. Apply engine oil to the new O-ring and set it into the cup of the fuel tube.
CAUTION:
• Handle O-ring with bare hands. Never wear gloves.
• Lubricate new O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Make sure that O-ring and its mating part are free of for-eign material.
• When installing O-ring, do not scratch it with tool or fin-
gernails.
• Do not twist or stretch the O-ring.
b. Make sure that the backup spacer is in the O-ring connecting surface of the fuel damper.
NOTE:
The backup spacer is part of the fuel damper assembly.
c. Insert the fuel damper until it seats on the fuel tube. CAUTION:
• Insert straight, making sure that the axis is lined up.
• Do not pressure-fit with excessive force.
d. Install the cap, and then tighten the bolts evenly. • After tightening the bolts, make sure that there is no gap between the cap and fuel tube.
2. Install new O-rings to the fuel injector paying attention to the items below. CAUTION:
• Upper and lower O-rings are different colors.
• Handle O-ring with bare hands. Never wear gloves.
KBIA2506E
Reference value :130 N (13.3 kg, 29.2 lb)
Fuel tube side : Blue
Nozzle side : Brown
KBIA2473E

FUEL INJECTOR AND FUEL TUBEEM-33
< SERVICE INFORMATION >
C
DE
F
G H
I
J
K L
M A
EM
NP
O
• Lubricate new O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Make sure that O-ring and its mating
part are free of foreign material.
• When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to
twist or stretch O-ring.
• If O-ring was stretched while it was being att ached, do not insert it quickly into fuel tube.
• Insert O-ring straight into fuel tube. Do not angle or twist it.
3. Install the fuel injector to the fuel tube using the following steps.
a. Insert new clip into clip mounting groove on the fuel injector. • Insert clip so that lug ″A ″ of fuel injector matches notch ″A ″ of
the clip.
CAUTION:
• Do not reuse clip. Replace it with a new one.
• Do not allow the clip to interf ere with the O-ring. If inter-
ference occurs, replace the O-ring.
b. Insert the fuel injector into the fuel tube with the clip attached. • Insert it while matching it to the axial center.
• Insert fuel injector so that lug ″B ″ of fuel tube matches notch
″ B ″ of the clip.
• Make sure that the fuel tube flange is securely seated in the flange fixing groove on the clip.
c. Make sure that installation is complete by checking that the fuel injector does not rotate or come off.
• Make sure that the protrusions of the fuel injectors are alignedwith the cutouts of the clips after installation.
4. Install the fuel tube and fuel injector assembly to the intake manifold. CAUTION:
Do not let the tip of the injector nozz le come in contact with other parts.
• Tighten fuel tube assembly bolts ″a ″ to ″b ″ in illustration in two
steps.
5. Install the fuel hose assembly. • Insert connectors straight, making su re that the axis is lined up with fuel tube side to prevent O-ring from
being damaged.
• Tighten bolts evenly in several steps.
• Make sure that there is no gap between the flange and fuel tube after tightening the bolts.
CAUTION:
• Handle O-ring with bare hands. Do not wear gloves.
• Lubricate O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Make sure that O-ring and its mating part are free of foreign material.
• When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to
twist or stretch O-ring.
• If O-ring was stretched while it was being att ached, do not insert it quickly into fuel tube.
• Insert new O-ring straight into fuel tube. Do not twist it.
KBIA2507E
1st step : 12.8 N·m (1.3 kg-m, 9 ft-lb)
2nd step : 24.5 N·m (2.5 kg-m, 18 ft-lb)
KBIA2474E

ROCKER COVEREM-35
< SERVICE INFORMATION >
C
DE
F
G H
I
J
K L
M A
EM
NP
O
ROCKER COVER
Removal and InstallationINFOID:0000000003531532
REMOVAL
1. Remove the engine room cover using power tool. Refer to
EM-12, "Removal and Installation".
2. Remove the air duct and resonator assembly. Refer to EM-15, "
Removal and Installation" (for LH only).
3. Move the harness on the upper rocker cover and its peripheral aside.
4. Remove the electric throttle control actuator, loosening the bolts diagonally (for LH only).
5. Remove the ignition coils. Refer to EM-28, "
Removal and Installation".
6. Remove the PCV hose from the PCV control valves. •⇐ : Engine front
7. Loosen the bolts in reverse order shown using power tool for rocker cover (A) or (B).
CAUTION:
Do not hold the rocker cover ( RH) (B) by the oil filler neck.
INSTALLATION
1. Rocker cover (LH) 2. PCV control valve 3. O-ring
4. Rocker cover gasket (LH) 5. Rocker cover (RH) 6. PCV control valve
7. O-ring 8. Oil filler cap 9 . Rocker cover gasket (RH)
KBIA2508E
WBIA0697E

EM-36
< SERVICE INFORMATION >
ROCKER COVER
1. Apply liquid gasket to the joint part of the cylinder head andcamshaft bracket following the steps below.
NOTE:
Illustration shows an example of (LH) side (zoomed in shows
No.1 camshaft bracket).
a. Refer to illustration ″a ″ to apply liquid gasket to the joint part of
No.1 camshaft bracket and cylinder head.
b. Refer to illustration ″b ″ to apply liquid gasket 90 ° to illustration
″ a ″.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-45, "
Recommended Chemical Product and Sealant".
2. Install the rocker cover (A) or (B). • Make sure the new rocker cover gasket is installed in the groove of the rocker cover (A) or (B).
• Tighten the bolts in two steps in the numerical order shown.
CAUTION:
Do not hold the rocker cover (RH) (B) by the oil filler neck.
3. Install the PCV hoses. NOTE:
• Remove foreign materials from inside the hose using com-
pressed air.
• The inserted length is within 25 - 30 mm (0.98 - 1.18 in) [Tar-
get: 25 mm (0.98 in)].
4. Installation of the remaining components is in the reverse order of removal.
KBIA2510E
1st step : 2.0 N·m (0.2 kg-m, 18 in-lb)
2nd step : 8.3 N·m (0.85 kg-m, 73 in-lb)
WBIA0697E