Nissan Juke F15. Manual - part 624

EM-50

< REMOVAL AND INSTALLATION >

[MR FOR NISMO RS MODELS]

HIGH PRESSURE FUEL PUMP AND FUEL HOSE

• Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.

• To avoid the danger of being scalded, never drain engine coolant when engine is hot.
1. Release fuel pressure. Refer to 

EC-166, "Work Procedure"

.

2. Remove engine cover. Refer to 

EM-26, "Exploded View"

.

3. Remove fuel pump connector protector, and remove high pressure fuel pump insulator.
4. Disconnect quick connector (A) with the following procedure.
a. Disconnect fuel feed hose (1) from bracket hose clamp (2).

b. Disengage (A) and pull up (B) the pawl of the fuel feed hose

connector retainer (C) to disconnect the fuel feed hose from high

pressure fuel pump.

NOTE:

If the fuel feed hose is stuck, hold the fuel pipe by hand and dis-

connect it by pushing and pulling.

CAUTION:

• 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 bent or twist connection between quick connector

and fuel feed hose (with damper) during installation/

removal.

• Pull quick connector holding (D).

• Never remove the retainer.

• Prepare a tray and waste beforehand as fuel leaks out.

• Never pull with lateral force applied. O-ring inside quick

connector may be damaged.

• To prevent damage to each joint and protect it from the

entry of foreign matter, cover the joint with plastic bag (A)

or an equivalent.

5. Remove intake manifold. Refer to 

EM-30, "Removal and Installation"

.

6. Remove fuel tube.
7. Remove fuel rail connector.

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Retainer color

: Red

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HIGH PRESSURE FUEL PUMP AND FUEL HOSE

EM-51

< REMOVAL AND INSTALLATION >

[MR FOR NISMO RS MODELS]

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8. Remove high pressure fuel pump (1) and lifter.

CAUTION:

To prevent damage to high pressure fuel pump and cam-

shaft bracket, loosen bolt (A) alternately by one turn at a

time until the reaction force applied on the high pressure

fuel pump disappears.

INSTALLATION

CAUTION:

• Do not reuse O-rings.

• To prevent damage to parts due to generated abnormal stress and eccentric load, always observe

the installation procedure.

1. Install high pressure fuel pump according to the following procedure.
a. Check the orientation of pump cam from the mounting area

(view arrow) of high pressure fuel pump.

b. Aim pump cam at the BDC area (arrow position).

NOTE:

For BDC area, anywhere within the area indicated by arrow can

be accepted.

c. Install O-ring to high pressure fuel pump. When handing new O-ring, paying attention to the following cau-

tion items:

CAUTION:

• Do not reuse O-ring.

• 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.

• Never damage O-ring with tools and fingernails during the installation. In addition, twisting or

stretching O-ring is not allowed. If O-ring is stretched during the installation to high pressure

fuel pump, never install high pressure fuel pump immediately.

d. Install high pressure fuel pump lifter.
e. Apply oil to the fitting area of high pressure fuel pump O-ring and camshaft bracket side to install high

pressure fuel pump.

f.

Install high pressure fuel pump. To prevent damage to high pressure fuel pump and camshaft bracket, the

following instructions must be observed.

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1

:  Camshaft  (EXH)

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EM-52

< REMOVAL AND INSTALLATION >

[MR FOR NISMO RS MODELS]

HIGH PRESSURE FUEL PUMP AND FUEL HOSE

CAUTION:

• Temporarily tighten bolt (A) by hand. Alternately tighten

bolt by one turn at a time until high pressure fuel pump

reaches camshaft bracket.

• After a pump flange sitting, tighten the bolts to the speci-

fied torque.

2. Connect fuel feed hose with the following procedure, and them install the fuel feed hose.
a. Check no foreign substances are deposited in and around matching pipe and quick connector, and no

damage on them.

b. Quick connector shall be inserted gradually, aligning with the axis of the matching pipe.
c.

Insert the retainer until it clicks and check the retainer is locked.

After insertion, pull the connector and check that the connector

is locked.

CAUTION:

If retainer cannot be installed smoothly, quick connector

may be have not been installed correctly. Check connection

again.

d. After attaching the quick connector and fix the hose to the clamp.
3. Install new fuel rail connector (1).

CAUTION:

• Never reuse fuel rail connector.

• 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.

• Never scratch O-ring with tools or fingernails when

installing fuel rail connector.

• Insert new fuel rail connector straight into fuel rail. Never decenter or twist the fuel rail connec-

tor during insertion.

4. Install the fuel tube with the following procedure.

CAUTION:

• When removing fuel tube, always replace fuel rail connector together with fuel tube.

• Never reuse fuel tube.

• Never use fuel tube if its terminal tip is damaged.

• Observe the tightening order and the tightening torque.

1 : High pressure fuel pump

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A

: Lock position

B

: Unlock position 

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2

: O-ring

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HIGH PRESSURE FUEL PUMP AND FUEL HOSE

EM-53

< REMOVAL AND INSTALLATION >

[MR FOR NISMO RS MODELS]

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a. Temporarily tighten flare nut (A) and (B) of fuel tube (3) until

seated.

CAUTION:

When temporarily tightening flare nut, place pipe in the cen-

ter of the nut inner diameter.

b. Temporarily tighten bolt (4) until the seat of bracket is seated.
c. Tighten flare nut (A) and (B) in alphabetical order.

CAUTION:

Always fit the tool completely with the nut.

d. Tighten bolt (4).
5. Install in the reverse order of removal after this step.

CAUTION:

After checking fuel leakage, maintain ten minutes of idling to bleed the fuel line.

Inspection

INFOID:0000000012197276

INSPECTION AFTER INSTALLATION

Check for Fuel Leakage

1. Turn ignition switch “ON” (with the engine stopped). With fuel pressure applied to fuel piping, check that

there is 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 is no fuel leakage at connection

points.

CAUTION:

Never touch the engine immediately after it is stopped because the engine is extremely hot.

1

: High pressure fuel pump

2

: Fuel rail connector

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