RENAULT KANGOO 1997 KC / 1.G Engine And Peripherals Workshop Manual

FUEL TANK
Fuel tank
19
Components
1 Tank
2 Bolt
3 Filler neck
4 Filler neck bowl
5 Rivet
6 Sleeve mounting clip
7 Fuel cap
8 Fuel supply pipe
9 Fuel return pipe
10 Clip
13 Cup
14 Canister pipe
15 Canister pipe
18 Canister
19 Bolt
20 Clip
21 Clip
22 Damper pad
23 Captive nut
24 Connection between filler neck outlet and
fuel passage pipe
25 Degassing - filling
27 Canister connection (fuel vapours)
28 Over-filling prevention valve
29 Excess pressure-under-pressure safety valve
30 Restriction valve
31 Leak prevention valve in case vehicle turns
over
32 Over-filling prevention valve and leak pre-
vention valve in case vehicle turns over.
A Quick-release union
B Snap-fit union
C Quick release union
D Sleeve (not snap-fit)
E Opening for air outlet during filling
F Air volume allowing the fuel to expand
R Fuel inlet for filling
V Maximum fuel volume allowed.
19-27

FUEL TANK
Fuel tank
19
PURPOSE OF THE VALVES
28 Overfill prevention valve
When the filler cap is removed the valve is
closed, trapping a volume of air within the
breather volume. This prevents fuel from fil-
ling this volume.
When the filler cap is replaced, the valve
opens allowing the tank to breathe through
the canister
29 Excess - vacuum safety valve
If the fuel vapour recirculation circuit is
blocked, this valve prevents the fuel tank
being subject to excess pressure (the tank
would inflate) or vacuum (as fuel is used, the
tank would be crushed).
30 Restriction valve
This valve prevents the introduction of leaded
fuel into the tank.
31 Leak prevention valve in case vehicle turns
over
If the vehicle turns over, this valve prevents
the tank from emptying, either through the
pipe leading to the canister, or through the
breather pipe (in Diesel versions).
32 Overfill prevention valve and leak prevention
valve in case the vehicle turns over
The overfill prevention valve operates using
the ball at (33).
When the vehicle is stationary, during filling,
the ball rests in its seat, retaining a certain
volume of air in the reservoir .
When the vehicle is moving , the ball (33)
moves out of its seat, thus allowing the tank
to be connected to the canister.
When the tank is full, it is vital that a
sufficient volume of air to allow the fuel
contained within it to expand is retained
inside the tank, but not too much, otherwise
there is a risk of the tank exploding .
This valve has the same operating principle as
the valve (31) .
The tank has a sealed cap.
The filler neck for unleaded petrol has the follo-
wing special features :
- a filling opening with a smaller diameter and
not compatible with a conventional filling
nozzle (the lead would have the effect of pol-
luting the depollution system: oxygen sensor
and catalytic converter),
- a valve blocking the filing opening (30) (to
avoid fuel evaporating or the reverse passage
of fuel).
Fitting the cap releases the overfill prevention
valve (A) allowing the tank to breathe (this fea-
ture is present only in first generation petrol ver-
sions).
99212R2
19-28

FUEL TANK
Sender unit
19
In petrol versions, the pump and sender unit can-
not be separated.
In diesel versions, there is no pump immersed in
the tank, and there is only a sender unit.
For the removal of the sender unit, please refer to
subsections "Tank", "Pump-sender unit".
Checking the sender unit
Check for a variation in resistance by moving the
float.
NOTE : all the above values are given merely as
an indication.
IndicationValue between terminals
A1 and B1 (in Ω)
4/4 7 maximum
3/4 54.5 ± 7
1/2 98 ± 10
1/4 155 ± 16
Low fuel level 300 ± 20
19-29

Mot. 1264 Wrench for removing
Mot. 1264-01 pump-sender unit assembly nut
Mot. 1265 Pliers for removing
Mot. 1265-01 quick release unions
FUEL TANK
Pump- sender unit
19
SPECIAL TOOLING REQUIRED
IMPORTANT :
During all operations on the fuel tank or on the
fuel supply circuit , it is vital :
- to refrain from smoking and handling incan-
descent objects in the vicinity of the working
area,
- to avoid fuel projections, due to the residual
pressure present in the pipes during removal .
REMOVAL
To remove the pump-sender unit assembly, it is
not necessary to remove the tank, as it is accessi-
ble through the inside of the vehicle. To do this :
- disconnect the battery,
- lift the rear bench seat ,
- remove the steel access cover,
- remove the electrical connection at (1),
- remove the clips at (2).
97163R5
Nut for pump - sender unit assembly 7

TIGHTENING TORQUES (in daN.m)Disconnect, using tool Mot. 1265 or Mot. 1265-
01:
- the fuel supply pipe (3) (which is marked by a
green quick release union),
- the fuel return pipe (4) (marked by a red quick
release union and by an arrow (B)).
96420R1
19-30

FUEL TANK
Pump- sender unit
19
REFITTING
Check that the seal is not deformed, and replace it
if necessary.
Position the pump-sender unit assembly
(ensuring that the arrow at (F) is placed in the
longitudinal axis of the vehicle pointing to the
rear).
Position the nut and tighten it to the torque of
3.5 daN.m.
Fit the fuel pipes (it is not necessary to use the
pliers Mot. 1265 or Mot. 1265-01).
Refit the safety clips at (2).
Reconnect the electrical connection.
Refit the steel cover.
ALLOCATION OF CONNECTOR TRACKS
TRACK ALLOCATION
A1 Earth
A2 Fuel minimum level warning light
B1 Sender unit information to instrument
panel
B2 Not used
C1 pump
C2 pump
Remove the mounting nut at (5) using tool
Mot. 1264 or 1264-01 (release the nut, remove
the tool, hand slacken the nut, then remove it).
Extract the fuel pump-sender unit assembly.
99367S
NOTE : if several hours have to pass between the
removal and refitting of the fuel pump-sender
unit assembly, refit the nut on the tank, to avoid
deforming it.
19-31

ENGINE MOUNTING
Suspended engine mountings
19
12924G
D7F Engine
TIGHTENING TORQUES (in daN.m)
13359S
19-32

ENGINE MOUNTING
Suspended engine mountings
19
13359R3
D7F Engine
TIGHTENING TORQUES (in daN.m)
19-33

ENGINE MOUNTING
Suspended engine mountings
19
13086R2
F8Q Engine
TIGHTENING TORQUES (in daN.m)
19-34