Workshop
Manual
Rolls Royce
Silver Shadow
8
Bentley
T
Series
Chapter
K
tank will have transferred 5.5 Imp. pts. (3,125 litres,
6.7 U.S. pts.) to the expansion tank leaving the
equivalent air space in the main tank for expansion.
Fuel tank-To remove
To remove the fuel tank proceed as described in
Section
K1-Fuel System (Early Cars) noting that
Operation
6
should be omitted and Operation
6
as
follows should be carried out.
6. Using a pair of special pliers
(RH8090), remove
the steel clips from the two rubber hoses situated one
on either side of the fuel filler neck.
Withdraw the rubber hoses from the pipes.
Fuel trap assembly-To remove
1. Disconnect the battery.
2. Remove the luggage compartment carpet and
underlay.
3.
Remove the tool kit (see Chapter R-Wheels
and
Tyres,
Fig.
RlO).
4.
Remove the fuel filler door release ring.
5. Unscrew the five 'Philips' headed screws from the
side carpet; four secure the brackets retaining the tool
kit and the fifth is positioned at the front of the side
carpet.
6. Release the
'Tenax' clip situated adjacent to the
rear lamps access point.
7. Remove the side carpet and the carpet covering
the fuel
filler neck.
8.
Using special pliers (RH8090) remove the steel
clips from the rubber hoses. Withdraw the hoses from
Fuel tank-TO fit
their respective pipes.
Fit the fuel tank by reversing the procedure given for
9.
Unscrew
and
the
three
setscrews
its removal noting the following points.
securing the fuel trap assembly.
10. Slowly move the fuel trap rearward and
down-
1. Ensure that the two rubber vent hoses are in a
ward until the lower end can be turned into the luggage
good condition.
compartment and the assembly withdrawn from the
2.
New steel clips should be used to secure the
car.
rubber vent hoses to the metal pipes on either side of
-
-
the filler neck base.
Fuel trap assembly-To fit
Fuel trap assembly
Fit the fuel trap assembly by reversing the procedure
given for its removal noting the following points.
1. Ensure that the rubber hose connections are in a
The fuel trap (see
Fig.
K42)
has a capacity of 3.25 Imp.
good
condition.
pts. (1,87 litres,
4.00
U.S.
pts.).
2. Ensure that new steel retaining clips are used.
It acts as a liquid separator and prevents liquid fuel
from being transferred to the control canister under
severe driving manoeuvres when the fuel tank is full
or during expansion of the fuel at elevated ambient
temperatures.
The tank vent pipes are fed to the lower ends of the
banana-shaped fuel trap. These pipes also serve as drain
pipes for any fuel in the trap.
The filler tube is vented into the forward end of the
fuel trap.
An outlet pipe is attached to the interior of the fuel
trap and the other end is connected via metal and
rubber pipes to the evaporation loss control canister.
A
combined relief and vacuum valve in the fuel trap
prevents any excessive pressure build-up due to
vapor-
isation, or depression as the fuel is consumed, should
the vent line to the evaporation loss control canister
become blocked.
Fuel trap relief and vacuum valve-
To remove
1. Remove the fuel trap assembly as described in
Fuel trap assembly-To remove.
2.
Unscrew the retaining setscrews, taking care not
to lose the washers.
3. Withdraw the relief and vacuum valve.
Fuel trap relief and vacuum valve--To fit
Fit the relief and vacuum valve by reversing the
procedure given for its removal, noting the following
points.
1. Ensure that the joint faces of the relief and
vacuum valve and fuel trap assembly are clean and in
a good condition.
2.
Fit a new gasket.
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