Infiniti F50. Manual - part 513

 

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Infiniti F50. Manual - part 513

 

 

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

EC-693

C

D

E

F

G

H

I

J

K

L

M

A

EC

8. 

CHECK REFUELING CONTROL VALVE

Refer to 

EC-693, "Component Inspection"

 .

OK or NG

OK

>> GO TO 9.

NG

>> Replace refueling control valve with fuel tank. 

9. 

CHECK REFUELING EVAP VAPOR CUT VALVE

Refer to 

EC-693, "Component Inspection"

 .

OK or NG

OK

>> GO TO 10.

NG

>> Replace refueling EVAP vapor cut valve with fuel tank.

10. 

CHECK FUEL FILLER TUBE

Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.

OK or NG

OK

>> GO TO 11.

NG

>> Replace fuel filler tube.

11. 

CHECK ONE-WAY FUEL VALVE-I

Check one-way valve for clogging.

OK or NG

OK

>> GO TO 12.

NG

>> Repair or replace one-way fuel valve with fuel tank.

12. 

CHECK ONE-WAY FUEL VALVE-II

1.

Make sure that fuel is drained from the tank.

2.

Remove fuel filler tube and hose.

3.

Check one-way fuel valve for operation as follows.
When a stick is inserted, the valve should open, when removing
stick it should close.
Do not drop any material into the tank.

OK or NG

OK

>> INSPECTION END

NG

>> Replace fuel filler tube or replace one-way fuel valve

with fuel tank.

Component Inspection

EBS00MOX

WATER SEPARATOR

1.

Check visually for insect nests in the water separator air inlet.

2.

Check visually for cracks or flaws in the appearance.

3.

Check visually for cracks or flaws in the hose.

SEF665U

EC-694

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

4.

Check that A  and C  are not clogged by blowing air into B  with
A , and then C  plugged.

5.

In case of NG in items 2 - 4, replace the parts.

NOTE:

Do not disassemble water separator.

REFUELING EVAP VAPOR CUT VALVE

 With CONSULT-II

1.

Remove fuel tank. Refer to 

FL-9, "FUEL TANK"

 .

2.

Drain fuel from the tank as follows:

a.

Remove fuel feed hose located on the fuel gauge retainer.

b.

Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other
side to a fuel container.

c.

Drain fuel using “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT-II.

3.

Check refueling EVAP vapor cut valve for being stuck to close as follows.
Blow air into the refueling EVAP vapor cut valve (from hose end B), and check that the air flows freely into
the tank.

4.

Check EVAP vapor cut valve for being stuck to open as follows.

a.

Connect vacuum pump to hose ends A and B using a suitable 3-way connector.

b.

Remove fuel gauge retainer with fuel gauge unit.
Always replace O-ring with new one.

c.

Put fuel tank upside down.

d.

Apply vacuum pressure to both hose ends A and B [

13.3 kPa (

100 mmHg, 

3.94 inHg)] with fuel gauge

retainer remaining open and check that the pressure is applicable.

 With GST

1.

Remove fuel tank. Refer to 

FL-9, "FUEL TANK"

 .

2.

Drain fuel from the tank as follows:

a.

Remove fuel gauge retainer.

b.

Drain fuel from the tank using a handy pump into a fuel container.

3.

Check refueling EVAP vapor cut valve for being stuck to close as follows.

PBIB1032E

PBIB1135E

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

EC-695

C

D

E

F

G

H

I

J

K

L

M

A

EC

Blow air into the refueling EVAP vapor cut valve (from hose end B), and check that the air flows freely into
the tank.

4.

Check EVAP vapor cut valve for being stuck to open as follows.

a.

Connect vacuum pump to hose ends A and B using a suitable 3-way connector.

b.

Remove fuel gauge retainer with fuel gauge unit.
Always replace O-ring with new one.

c.

Put fuel tank upside down.

d.

Apply vacuum pressure to both hose ends A and B [

13.3 kPa (

100 mmHg, 

3.94 inHg)] with fuel gauge

retainer remaining open and check that the pressure is applicable.

REFUELING CONTROL VALVE

1.

Remove fuel filler cap.

2.

Check air continuity between hose ends A and B.
Blow air into the hose end B. Air should flow freely into the fuel tank.

3.

Blow air into hose end A and check there is no leakage.

4.

Apply pressure to both hose ends A and B [20 kPa (150 mmHg, 5.91 inHg)] using a pressure pump and a
suitable 3-way connector. Check that there is no leakage.

PBIB1135E

PBIB1135E

EC-696

POSITIVE CRANKCASE VENTILATION

POSITIVE CRANKCASE VENTILATION

PFP:11810

Description

EBS00MOT

SYSTEM DESCRIPTION

This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV
valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air passes
through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.

Component Inspection

EBS00MOU

PCV (POSITIVE CRANKCASE VENTILATION) VALVE

With engine running at idle, remove PCV valve ventilation hose from
PCV valve; if the valve is working properly, a hissing noise will be
heard as air passes through it and a strong vacuum should be felt
immediately when a finger is placed over valve inlet.

PBIB0062E

PBIB1588E

PBIB1589E

 

 

 

 

 

 

 

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