Before you remove the sender unit, take
precautions against spilling fuel.Then disconnect the fuel pipe if necessary,
blocking it with a plug or an old pencil. If there are two pipes, mark
them.Disconnect the electric wires. The sender may be fixed by screws or by
studs and nuts round the edge. Unscrew them carefully; one snapped stud could
mean replacing the whole tank.car auto oil seals Preferential.
Often the sender has a bayonet fitting, held on to its seating by an outer locking ring with lugs.Release this ring by turning it anticlockwise, using a C-spanner.
Alternatively, hold a metal bar against a lug and tap gently with a hammer. shaft oil seals.Take care not to bend the lug. Take off the sender carefully. Inside there is a long arm attached to a float. auto oil seals.If you bend the arm, the gauge becomes inaccurate.
There is usually a tag in the sender hole to ensure that you refit the sender the right way round. Put the sealing ring in place and tighten the nuts or screws in sequence to spread the pressure. auto oil seals.Reconnect the fuel pipe and electric wires, refill the tank and check for leaks.A smell of petrol is most likely to come from a fuel-pipe leak (See Checking fuel pipes). Check also the flexible hose between the tank and the filler, making sure that its clips are tight. If all these are sound, the tank may be leaking.
Fuel tanks can rust from both inside and outside, particularly at the bottom. Eventually holes may develop. This is not uncommon in older cars, where a series of small pinholes barely visible to the naked eye cause a slow, steady loss of fuel.nok oil seals.If a tank is old and leaky, replace it, not only because of the needless loss of fuel but also because of the risk of fire.
A lock ring can be turned gently with a hammer and drift.car auto oil seals Preferential.
A tank mounted inside the bodywork may be rusted by water trapped in body panels.bearing oil seals. Make sure that there is no water present, and that drain holes are clear.Drill extra drain holes if necessary – but be careful of the tank. Plug any new drain holes later with suitably sized rubber bungs.
A tank mounted on the outside usually under the boot or forward of the rear axle – can be dented or holed by knocks, stones or a wrongly placed jack.A dented tank may give a shorter range between refills, but be serviceable otherwise.Do not attempt to repair a tank yourself. If it is leaking or rusted through, replace it.car auto oil seals Preferential.
Often the sender has a bayonet fitting, held on to its seating by an outer locking ring with lugs.Release this ring by turning it anticlockwise, using a C-spanner.
Alternatively, hold a metal bar against a lug and tap gently with a hammer. shaft oil seals.Take care not to bend the lug. Take off the sender carefully. Inside there is a long arm attached to a float. auto oil seals.If you bend the arm, the gauge becomes inaccurate.
There is usually a tag in the sender hole to ensure that you refit the sender the right way round. Put the sealing ring in place and tighten the nuts or screws in sequence to spread the pressure. auto oil seals.Reconnect the fuel pipe and electric wires, refill the tank and check for leaks.A smell of petrol is most likely to come from a fuel-pipe leak (See Checking fuel pipes). Check also the flexible hose between the tank and the filler, making sure that its clips are tight. If all these are sound, the tank may be leaking.
Fuel tanks can rust from both inside and outside, particularly at the bottom. Eventually holes may develop. This is not uncommon in older cars, where a series of small pinholes barely visible to the naked eye cause a slow, steady loss of fuel.nok oil seals.If a tank is old and leaky, replace it, not only because of the needless loss of fuel but also because of the risk of fire.
A lock ring can be turned gently with a hammer and drift.car auto oil seals Preferential.
A tank mounted inside the bodywork may be rusted by water trapped in body panels.bearing oil seals. Make sure that there is no water present, and that drain holes are clear.Drill extra drain holes if necessary – but be careful of the tank. Plug any new drain holes later with suitably sized rubber bungs.
A tank mounted on the outside usually under the boot or forward of the rear axle – can be dented or holed by knocks, stones or a wrongly placed jack.A dented tank may give a shorter range between refills, but be serviceable otherwise.Do not attempt to repair a tank yourself. If it is leaking or rusted through, replace it.car auto oil seals Preferential.
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