If your fuel tank has developed a leak, has been punctured or otherwise damaged, it will need replacement. This task can be completed by the average mechanic. Wait and see, and be positive you have safety on your mind at all times. Gas is highly flammable and dangerous if ignored.
Work in a clean, organized area. Clutter can cause accidents.
If you are working indoors, be sure there are no pilot lights or other sources of flame or spark present.
Keep your work area well ventilated.
Be sure to have a fire extinguisher on hand.
What you’ll need:
New fuel tank
Proper gas storage container
Wrenches, sockets, normal hand tools
With all of your materials together, you're ready to install a new fuel tank. Don't forget to do it safely!
you can install a new fuel tank, you need to drain the gas out of your
old tank. Be sure you have a proper receptacle to catch the draining
Some fuel tanks have a drain cock that will allow you to
drain all of the gas neatly. If you have a drain cock, it will be
located at the lowest point on the tank. Loosen the valve and allow the
gas to completely drain.
If your tank has no drain cock, you'll
have to drain it by removing one of the fuel lines. The rubber hose that
exits the tank at its lowest point will drain the tank fully. It will
either be connected to an electric fuel pump, fuel filter, or to a hard
fuel line that goes to the front of the car. Loosen the clamp on the end
of the line that connects to the gas tank. Pull the hose off and allow
the gas to run out of the tank into your container until it is drained
Pour the gas into a gas can and store it safely. You can pour it into your new tank!
next step in replacing your fuel tank is removing the fuel lines that
connect to the tank. Gas tanks have more than one line. There is a fuel
supply line that leaves the tank at the lowest point and goes toward the
fuel pump or engine. Then there's the large fill tube coming from your
gas fill entry point (where you fill 'er up). There will also be a vent
line to allow pressure to be released when the tank's level changes.
all of the lines going to the fuel tank. It's a good idea to take a
digital camera and shoot the setup before you take it apart. This will
help you put it back together if it gets confusing.
This step won't be necessary on all vehicles. If you're lucky, you get to skip it.
cars have a single beam in the rear. On front wheel drive vehicles, it
will be a suspension beam only, but on rear wheel drive cars it will be
an axle with a rear differential. Inspect your situation to see if the
tank can be removed with the rear suspension in place.
If it can't, you'll need to drop the rear suspension.
disconnect the bottom fitting on your rear shock absorbers and pull the
rear suspension down and away from the dangling shocks.
support the rear suspension beam or drive assembly at the center with a
floor jack. This will allow you to slowly lower the heavy parts.
you're forced to drop the rear suspension to remove the fuel tank,
you've already supported the assembly with a floor jack and removed the
lower shock mount bolts (see previous step).
Next you'll need to disconnect the rear brake lines to avoid damaging them.
remove the large nuts that attach the rear beam or drive assembly to
the frame of the car. With the nuts off, lower the assembly to the
ground using the jack.
Your fuel tank is held in place with two metal straps. These straps hold the tank in tightly and safely.
remove the metal straps, loosen the nuts at one end of the straps. They
should drop on their own, but they might be a little sticky. Pull them
down and unhook them from the other end.
With nothing holding it
back, you can now drop the elderly fuel tank. Installing the new is like
taking the elderly out, only the other way around. In mechanics terms,
installation is the reverse of removal.
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