Can anyone explain the danger in this??????

chrisvosberg said:

Spud monkey is right:thumbup The liquid cannot burn, only the vapor will. So this leads to the question: Why doesn't the fuel tank explode when not full?

Every fuel injected motorcycle, car, aircraft has a fuel pump in the tank to pressurize the lines. Fuel quantity wiring amperage is too low to start a fire, the fuel pump wiring amperage is high enough. If the connections are firm and pass the current to the pump, no fire can happen, even if the wires are bare. However, if the bare wires of opposite polarity touch each other and not immersed in liquid.....Boom! Electricity, as a rule, will ALWAYS seek the path of least resistance. A direct short, as in the bare wire senario, is less resistance than running the pump.

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There is not enough air in the vapour of your tank to ignite without greater heat.

Think about a molotov coctail which has a lighted fuse in the form of a rag stuffed into the end. It doesn't ignite the contents until the glass smashes and a the fuel can mix with a much greater qauntity of air.

For electricity to past through air it takes about 30,000 volts per cm. Also the pump circuit will have a low ampage fuse so even if the insulation was to rub off the fuse would blow a split second after the wires touched together.

Isnt it because fuel itself wont explode its the vapour's that are the flamable bit?

p.s. havent read all 3 pages

Olllie said:

Isnt it because fuel itself wont explode its the vapour's that are the flamable bit?

p.s. havent read all 3 pages

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You were wise not to, its something that will never happen :roll

strongbow said:

For electricity to past through air it takes about 30,000 volts per cm. Also the pump circuit will have a low ampage fuse so even if the insulation was to rub off the fuse would blow a split second after the wires touched together.

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Yes, lotsa volts. It does not take much heat to start a chain reaction.

Electricity travels at the speed of light, fuses must heat and physically break--arc wins! The arc would still be in the tank and if the fuel level was low, it is very probable the tank would grenade.....but let's not try it, ok?

the reason is if those well insulated cables happened to be stripped then the electric would first jump through the gasoline which is more conductive then the air and wouldn't not cause sparks like you touch a screw driver on the positive terminal of your battery and the chassis of your bike. The electric arcs when it's on metal and then it spatters in a termite affect. (12V with plenty of amps to cause major sparks and explosion Fahrenheit 911 ****, please check out the footage on the torched beams)

so if you manage to drop your keys or a razor in your tank and then the POSITIVE cables (sexy green negative? and sexy blue positive) cannot resist your animal magnetism and they decide to get naked and tangle together because the Positive won't do **** by itself since the tank has protective coat on it (lacquer I guess) and you don't have time to scratch your arse and the tank with the cables that long because your bike will stall when your pump goes out incase of an event like this unless your wifes new bf splits the cable ends and goes al quada on your arse for the life insurance... well if you can manage to strip both cables after dropping your keys with a floater keychain on it (let's say you have a yatch too) in the tank while fueling. well let's say your tank lid is broken too and you were checking out this chick with ******** and *** and she might possibly be that al quada dudes gf or wife? world is small and the possibilities are endless in this scenerio. and after all the cutting with cables inside your tank with the keys like prisoner in Alcatraz you can manage the blow up your tank while trying to steer your stalling engine at 1XX MPH I guess? and just do a mean rolling stoppie so you won't skid long like couple hundred furlongs like i do. I would love to watch that cuz If i catch you you owe me my 2 cents back! don't drink and fuel and drive with your keys to your yatch! lol so anyway yes it is possible to blow up your **** if you can manage to get those cables uninsulated! don't sabotage anyone like that point that person and i will beat him up for you. arrrrrrrrrr lol

There, i think we can safely say it wont blow up then, phew what a relief, i might ride mine again now i know it wont explode in my face and kill me :thumbup

little1uk said:

There, i think we can safely say it wont blow up then, phew what a relief, i might ride mine again now i know it wont explode in my face and kill me :thumbup

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YEP, so I just istall the oppposite to the way it came out :doug

My two cents worth.
Gas does not conduct electricity well. So if you put two leads with no more than say 12 volt difference in some gas, nothing happens as long as you keep them a little apart.

If you'd short-circuit the leads like by rubbing the bare copper over each other you would definitely get sparks, like you would in normal air too.
Lucky for all of us who occasionally ride with a few gallons of petrol between our legs, gas needs oxygen from somewhere else to burn. If you rub the wires "under water" there would not be oxygen to ignite the fuel. If you'd rub the wires inside the tank above the fuel level there might be oxygen if you recently opened the tank or still have it open. And even then, you'd need the correct mixture of air and petrol vapor to get a good bang, the range between "too lean to ignite" and "too rich to ignite" is not that big.
Petrol in a tank will normally evaporate and drive most air out of your tank over time so most tank-insides will have a "too rich to ignite" interior.
Even so, I would treat the construction inside my tank with a little more respect because of the combination of electricity and gas: don't fiddle with the construction, check for wear and make sure when you re-connect wires that they really are plugged in firmly and correctly, make sure the wires don't rub anywhere so there is no abrasion to the insulation.

blimey i can't read all those posts i got a life to lead.

Ok not much of a life granted.

Yes, all good points and mostly correct. Anything after this I would say is.....:horse

Looks pretty scary but apparently safe. Most cars are built this way & they hardly ever blow up...

An important thing is not to run it out of gas. The fuel keeps the pump cool & running it dry radically shortens its lifespan. Check the short "U"-shaped piece of hose as there was a recall in some countries.

Let's make a Molotov coctail and zap the bottle with a stun gun and see what happens lol

I think I only find my jokes amusing. lol I just need to type a litttle slower sometimes I don't even get my own jokes when I read them later. lol