Nissan Cube. Manual - part 408

 

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Nissan Cube. Manual - part 408

 

 

EM-36

< REMOVAL AND INSTALLATION >

FUEL INJECTOR AND FUEL TUBE

3.

Disconnect quick connector with the following procedure. Dis-
connect fuel feed tube (1) from fuel tube (3).
NOTE:
There is no fuel return path.

a.

Remove quick connector cap (engine side) (2) from quick con-
nector connection.

b.

With the sleeve side of quick connector release facing quick connector, install quick connector release
(commercial service tool) onto fuel tube.

c.

Insert quick connector release (A) into quick connector (2) until
sleeve (B) contacts and goes no further. Hold quick connector
release on that position.

CAUTION:

Inserting quick connector release hard will not disconnect
quick connector. Hold quick connector release where it
contacts and goes no further.

d.

Draw and pull out quick connector straight from fuel tube (1).

CAUTION:

• Pull quick connector (E) holding position (C) in the figure.
• Never pull with lateral force applied. O-ring inside quick connector may be damaged.
• Prepare container and cloth beforehand as fuel will leakage out.
• Avoid fire and sparks.
• Keep parts away from heat source. Especially, be careful when welding is performed around

them.

• Never expose parts to battery electrolyte or other acids.
• Never bend or twist connection between quick connector and fuel feed tube during installation/

removal.

• To keep clean the connecting portion and to avoid dam-

age and foreign materials, cover them completely with
plastic bags, etc. (A) or something similar.

4.

Disconnect harness connector from fuel injector.

5.

Remove fuel tube and fuel injector assembly.
• Loosen mounting bolts in the order of 2, 1 as shown in the fig-

ure.

CAUTION:

• When removing, be careful to avoid any interference with fuel

injector.

• Use a shop cloth to absorb any fuel leakage from fuel tube.

PBIC3157J

D : Insert and retain

JPBIA2255ZZ

JPBIA2888ZZ

: Engine front

PBIC3154J

FUEL INJECTOR AND FUEL TUBE

EM-37

< REMOVAL AND INSTALLATION >

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6.

Remove fuel injector from fuel tube with the following procedure:

a.

Open and remove clip (2).

b.

Remove fuel injector (3) from fuel tube (1) 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.
• Never disassemble fuel injector.

INSTALLATION

CAUTION:

Do not reuse O-rings.

1.

Note the following, and install O-rings to fuel injector.

CAUTION:

• Do not reuse O-ring.
• Upper and lower O-rings are different. Be careful not to confuse them.

• 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 fuel injector to fuel tube with the following procedure:

a.

Insert clip (2) into clip mounting groove (F) on fuel injector (4).

• Insert clip so that protrusion (G) of fuel injector matches cut-

out (D) of clip.

CAUTION:

• Never reuse clip. Replace it with a new one.
• Be careful to keep clip from interfering with O-ring. If

interference occurs, replace O-ring.

b.

Insert fuel injector into fuel tube (1) with clip attached.
• Insert it while matching it to the axial center.
• Insert fuel injector so that protrusion (B) of fuel tube matches

cut-out (C) of clip.

• Check that fuel tube flange (A) is securely fixed in flange fixing

groove (E) on clip.

c.

Check that installation is complete by checking that fuel injector
does not rotate or come off.

3.

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

CAUTION:

JPBIA0290ZZ

Fuel tube side

: Black

Nozzle side

: Green

3

: O-ring (black)

5

: O-ring (green)

PBIC3155J

EM-38

< REMOVAL AND INSTALLATION >

FUEL INJECTOR AND FUEL TUBE

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

4.

Install fuel tube and injector assembly onto cylinder.
• Tighten mounting bolts in the order of 1, 2 as shown in the fig-

ure.

5.

Connect harness connector to fuel injector.

6.

Connect fuel feed tube with the following procedure.

a.

Check for damage or foreign material on the fuel tube and quick connector.

b.

Apply new engine oil lightly to area around the top of fuel tube.

c.

Align center to insert quick connector straightly into fuel tube.
• Insert quick connector (1) to fuel tube until the top spool (C) on

fuel tube is inserted completely and the 2nd level spool (D) is
positioned slightly below quick connector bottom end.

CAUTION:

• Hold (A) position in the figure when inserting fuel tube

into quick connector.

• Carefully align center to avoid inclined insertion to pre-

vent damage to O-ring inside quick connector.

• Insert until you hear a “click” sound and actually feel

the engagement.

• To avoid misidentification of engagement with a similar sound, be sure to perform the next

step.

d.

Pull quick connector hard by hand holding position. Check it is completely engaged (connected) so that it
does not come out from fuel tube.

e.

Install quick connector cap (engine side) (2) to quick connector
connection.

• Install quick connector cap (engine side) with the side arrow

facing quick connector side (fuel feed tube side).

CAUTION:

• Check that the quick connector and fuel tube are

securely engaged with the quick connector cap (engine
side) mounting groove.

• Quick connector may not be connected correctly if

quick connector cap (engine side) cannot be installed easily. Remove the quick connector cap
(engine side), and then check the connection of quick connector again.

f.

Install fuel feed hose to hose clamp.

7.

Install remaining parts in the reverse order of removal.

Inspection

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INSPECTION AFTER INSTALLATION

: Engine front

PBIC3154J

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: Upright insertion

E

: Fitted condition

1.

Fuel feed hose

3.

Fuel tube

JPBIA2256ZZ

PBIC3157J

FUEL INJECTOR AND FUEL TUBE

EM-39

< REMOVAL AND INSTALLATION >

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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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