Nissan Qashqai J11. Manual — part 26

FUEL INJECTOR AND FUEL TUBE

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6.

Disconnect:
• Fuel injector connectors (2).
• Fuel pressure sensor connector (3)

7.

Remove fuel tube and fuel injector assembly.

CAUTION:

• When removing, be careful to avoid any interference with fuel injector.
• Use a shop cloth to absorb any fuel leakage from fuel tube.
• Never reuse fuel tube.

8.

Remove fuel injector from fuel tube with the following procedure:

a.

Remove injector holder.

b.

Remove fuel injector by pulling straight.

CAUTION:

• Be careful with remaining fuel that may go out from fuel tube.
• Be careful not to damage fuel injector nozzle during removal.
• Never bump or drop fuel injector.

Fuel injector seal disassembly.

1.

Remove carefully from fuel injector:
• O-ring seal (1).
• O-ring lower seal (2).
• ring stopper (3).

CAUTION:

• Handle O-ring with bare hands. Never wear gloves.
• Lubricate O-ring with new engine oil.
• Never clean O-ring with solvent.
• Check 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 is stretched while installing, never insert it quickly into fuel tube.

• Insert O-ring straight into fuel tube. Never decenter or twist it.

2.

Remove carefully from fuel injector teflon ring seal (4) following this procedure.
• Clean fuel injector

CAUTION:

It is forbidden to use a wire brush, sandpaper, etc.

• Cut fuel injector teflon ring seal with a pliers circlip.

CAUTION:

Take care to not damage fuel injector nozzle.

INSTALLATION

Fuel injector seal assembly.

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FUEL INJECTOR AND FUEL TUBE

1.

Install on fuel injector:
• O-ring seal (1).
• O-ring lower seal (2).
• ring stopper (3).

CAUTION:

• Handle O-ring with bare hands. Never wear gloves.
• Lubricate O-ring with new engine oil.
• Never clean O-ring with solvent.
• Check 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 is stretched while installing, never insert it quickly into fuel tube.

• Insert O-ring straight into fuel tube. Never decenter or twist it.

2.

Install carefully on fuel injector teflon ring seal (4) following this procedure using [SST: Mot.1533 (—)].
• Install on the fuel injector the cone (1) of [SST: Mot.1533 (—)].
• Install teflon ring seal on the cone (1) of [SST: Mot.1533 (—)].
• Push teflon ring seal into fuel injector groove.
• Remove the cone (1) of [SST: Mot.1533 (—)].

• Push the reforming tool (1) of [SST: Mot.1533 (—)] around fuel

injector nozzle to retract teflon ring seal during 30 secondes
minimum.
NOTE:
This operation is necessary to set correct outside diameter to
teflon ring seal.

Fuel injector and fuel tube installation.

CAUTION:

Never reuse fuel tube.

1.

Install fuel injector to fuel tube.

2.

Set fuel tube and fuel injector assembly at its position for installation on cylinder head.

CAUTION:

For installation, be careful not to interfere with fuel injector nozzle.

3.

Install fuel tube and injector assembly onto cylinder.
• Tighten mounting bolts.

4.

Connect harness connector to fuel injector.

5.

When replacing fuel injector, this procedure must be performed. Refer to

ECH-102, "Special Repair

Requirement List"

.

6.

Install remaining parts in the reverse order of removal.

Inspection

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INSPECTION AFTER INSTALLATION

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FUEL INJECTOR AND FUEL TUBE

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Check on Fuel Leakage

1.

Turn ignition switch “ON” (with the engine stopped). With fuel pressure applied to fuel piping, check there
are no fuel leakage at connection points.
NOTE:
Use mirrors for checking at points out of clear sight.

2.

Start the engine. With engine speed increased, check again that there are no fuel leakage at connection
points.

CAUTION:

Never touch the engine immediately after stopped, as the engine becomes extremely hot.

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OIL PAN (LOWER)

OIL PAN (LOWER)

Exploded View

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Refer to

GI-4, "Components"

for symbol marks in the figure.

Removal and Installation

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REMOVAL

1.

Drain engine oil. Refer to

LU-9, "Draining"

.

2.

Remove oil pan (lower) with the following procedure:

1.

Dowel pin

2.

Cylinder block

3.

Baffle plate

4.

Dowel pin

5.

Oil pan (upper)

6.

Oil pan (lower)

7.

Drain plug washer

8.

Drain plug

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