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(235)
PART
10-5
10-31
FUEL TANK AND LINES
Section
Page
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1 Description and Operation .....
. ....... 10-31
2 Removal and Installation ................. 10-31
D
DESCRIPTION AND OPERATION
All Lincoln Continental models are
equipped with a 24-gallon fuel tank
(Fig.
1).
The tank is held in a ver-
tical position by two steel straps. An
insulating pad is positioned between
the top of the tank and the underside
of the luggage compartment floor
pan and also between the rear ver-
tical wall of the tank and front wall
of the spare tire well.
The fuel sender unit is located on
the front side of the tank.
It
is ac-
cessible from underneath the car.
The fuel line and vapor return line
both fasten to connecting hoses that
are attached to lines which enter the
fuel tank through the fuel sender
unit assembly (Fig.
1).
A filter is
located in the tank, on the fuel send-
er unit pick-up tube. This filter
dot~s
not require servicing.
The fuel tank filJer pipe opening
is located behind a door in the left-
rear quarter panel, just above and
rearward of the wheel housing open-
ing. The tank is vented through the
fuel filler pipe cap. The filler pipe
is attached to the filler pipe housing
of the quarter panel with a gasket
between the pipe flange and housing.
EJ
REMOVAL AND INSTALLATION
FILLER PIPE
REMOVAL
In some instances, removal of the
fuel filler pipe may prove difficult.
A fuel tank filler pipe removal or
installation tool can be fabricated
locally from standard steel shapes
that are readily available. Figure 2
outlines instructions for fabricating
the tool.
~
1. Partially drain the fuel tank to
a level below the filler pipe connec-
tion in the tank (Fig.
1 ) .
2. Remove the retaining screws se-
curing the filler pipe to the filler pipe
housing. Insert the fabricated filler
pipe removal tool in the filler pipe
opening. Rotate the filler pipe with
the removal tool and pull it outward
to remove it from the fuel tank and
housing.
3. Remove and discard the 0-ring
seal located in the filler pipe open-
ing of the fuel tank. Replace the
filler pipe mounting gasket if it is
worn or damaged.
INSTALLATION
1. Install a new 0-ring seal in the
fuel tank (Fig. 1) . Install a new
gasket, if necessary, on the filler pipe
mounting flange.
2.
Position the filler pipe and ro-
tate the pipe into the fuel tank with
the fabricated tool. Make certain
the 0-ring seal is properly seated.
Install and tighten the filler pipe
retaining screws.
3. Fill the fuel tank and install
the filler cap. Check for fuel leaks.
FUEL TANK
REMOVAL
1. Remove the fuel tank filler cap
(Fig.
1).
Drain the fuel in the tank
into a suitable container with a
siphon.
2.
Raise the front of the car and
keep the rear wheels lowered. Dis-
connect the rear shock absorbers at
the top.
3. Remove fuel sender unit wire
and ground wire, low fuel level
device wire, fuel line and vapor re-
turn line from the sender unit.
4.
Remove the filler pipe to
fill
pipe housing retaining screws. Ro-
tate the filler pipe with the fabricated
tool and pull it outward to remove
it from the fuel tank and housing.
5. Loosen the nuts and release the
tank retaining strap bolts (hooks)
from the slotted underbody member
at the front of the fuel tank.
The filler pipe is sealed at the tank
with an 0-ring.
Two lines, a fuel supply line and
a vapor return line, with connecting
hoses and clamps, make up the fuel
line system.
These two lines are routed to-
gether from the tank, passing beneath
the left side of the underbody, then
under the left fender and through the
forward part of the fender apron.
All segments of the fuel lines are re-
placeable. However, only the dam-
aged segments are usually replaced.
6.
Remove the tank and discard
the filler pipe opening 0-ring seal.
If the fuel tank is to be replaced,
remove the fuel gauge sending unit
. and discard the gasket. Note the
position of the insulating pad and
the insulation between the tank
and retaining straps.
INSTALLATION
1. If the retaining strap(s)
re-
quired replacement, install the flanged
end ( s) of the new strap ( s) in the
slot ( s) of the underbody member
(Fig.
1) .
If necessary, properly posi-
tion the tank insulating pad.
2. If
a new tank is to be installed,
adhere new insulating pressure-sensi-
tive black tape, of the specified width
and length, to the sides of the fuel
tank. Install the fuel gauge sending
unit and new gasket on the tank.
3. Install a new 0-ring in the
filler pipe opening of the tank. Posi-
tion the mounting gasket on the
filler pipe. Insert the filler pipe into
the filler pipe housing. Carefully posi-
tion the tank on the retaining straps
and hook the strap bolts in the slots
of the underbody member. Align the
tank and filler pipe and tighten the
tank strap bolt retaining nuts.
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