Nissan Qashqai J11. Manual - part 107

PRECAUTIONS

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• Before carrying out any work, check that the fuel rail is not under pressure and that the fuel temper-

ature is not too high. [The system can inject the diesel into the engine at a pressure up to 160,000
kPa (1,600 bar, 1,632 kg/cm

2

, 23,200 psi)].

• Respect the cleaning and safety advice specified in this document for any work on the high pressure

injection system.

• Remove of the interior of the fuel pump and fuel injectors is prohibited.
• For safety reasons, it is strictly forbidden to slacken an injection tube union when the engine is run-

ning.

• It is not possible to remove the fuel pressure sensor from the fuel rail because this may cause circuit

contamination malfunctions. If the fuel pressure sensor fails, the fuel pressure sensor, the fuel rail
and the fuel injection tubes must be replaced.

• It is strictly forbidden to remove the fuel pump pulley.
• Applying 12 volts directly to any component in the system is prohibited.
• Ultrasonic carbon removal and cleaning are prohibited.
• Never start the engine without the battery being connected correctly.
CHECKING SEALING AFTER REPAIR

CAUTION:

After any operation, check that there is no diesel leakage.
• Start the engine and check for fuel leak for one minute after starting.
• Apply tracing fluid around the high pressure connections of the pipe that has been replaced.
• Once the engine coolant temperature is above 50

°

C (122F) and provided there are no malfunctions present,

carry out a road test, taking the engine speed up to 4,000 rpm at least once to check that there is no leak-
age.

• Perform a visual inspection after the road test to check that there is no high pressure leakage.
• Clean off the tracing fluid.

Precautions For Engine Service

INFOID:0000000010281960

DISCONNECTING FUEL PIPING

• Before starting work, check no fire or spark producing items are in the work area. 
• Release fuel pressure before disconnecting and disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.

DRAINING ENGINE COOLANT

Drain engine coolant and engine oil when the engine is cooled.

INSPECTION, REPAIR AND REPLACEMENT

Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.

REMOVAL AND DISASSEMBLY

• When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-

structed operations. 

• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Dowel pins are used for several parts alignment. When replacing and reassembling parts with dowel pins,

check that dowel pins are installed in the original position.

• Must cover openings of engine system with a tape or equivalent, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and reassembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally

opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used
in the step.

ASSEMBLY AND INSTALLATION

• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the

ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.

• Replace with new gasket, packing, oil seal or O-ring.

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PRECAUTIONS

• Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for

any restriction and blockage. 

• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.

Before assembly, oil sliding surfaces well. 

• After disassembling, or exposing any internal engine parts, change engine oil and replace oil filter with a new

one.

• Release air within route when refilling after draining engine coolant. 
• After repairing, start the engine and increase engine speed to check engine coolant, fuel, engine oil, and

exhaust gases for leakage.

PREPARATION

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PREPARATION

PREPARATION

Special Service Tools

INFOID:0000000010281961

NISSAN tool number
(RENAULT tool No.)
Tool name

Description

—
(Mot. 1979)
Piston ring compressor

Installing piston assembly into cylinder bore 

KV10111100
(

—

)

Seal cutter

Removing oil pan and front cover. etc

KV10112100
(

—

)

Angle wrench

Tightening bolts for bearing cap, cylinder 
head, etc. in angle

KV10114400
(

—

)

Heated oxygen sensor wrench

Loosening or tightening air fuel ratio sensor
a: 22 mm (0.87 in)

—
(Mot. 1970)
TDC set pin

To lock engine at TDC 

—
(Mot. 1969)
Camshaft timing tool

To lock camshaft when changing timing chain 

NT046

NT014

JPBIA0397ZZ

JPBIA0629ZZ

JPBIA0628ZZ

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PREPARATION

Commercial Service Tools

INFOID:0000000010281962

—
(Mot. 1770)
Crankshaft pulley locking tool

To lock crankshaft pulley 

—
(Mot. 1772)
Compression gauge adapter

Connecting compression gauge and glow 
plug hole

—
(Mot. 1773)
Positioning tool

To position the gear and apply for the right 
clearance (wear compensation gear)

—
(Mot. 1959)
TORX Socket

Removing and installing drive plate or fly-
wheel
Size: T55+

—
(Mot. 1972)
Piston cooler fitting tool 

Installing piston cooling jet cooler (9.5 degree 
orientation) 

—
(Mot. 1485-01)
Piston cooler removing tool 

Removing piston cooling jet cooler 

—
(Mot. 1431)
Flywheel locking tool

To lock flywheel  

—
(Emb. 880)
Piston cooler fitting tool 

Pin extractor tool  

NISSAN tool number
(RENAULT tool No.)
Tool name

Description

JPBIA0630ZZ

JPBIA0626ZZ

JPBIA0625ZZ

E1BIA0349ZZ

JMAIA0431ZZ