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Ford 2000 vapor locking?

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Bondy

07-02-2005 11:25:48

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My Ford 2000 will run for only about an hour then it will not restart unless started fuel is put in the plugs. When it does restart the minute you add more gas it chokes out. Usually have to wait to the following day. Is it vapor locking, trash in gas line? I have checked carberator and plugs and the they are fine. Also should gas flow generously into the sediment bowl mine is just trickling that made me think trash in line.

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frankiee

07-02-2005 17:12:55

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Re: Ford 2000 vapor locking? in reply to Bondy, 07-02-2005 11:25:48

Could be trash in the line. //try blowing back mildly. e carefull because air pressure can cause static. Dont want a spark with fuel vapors around.
Could be the cap vent is clogged. Try removing the cap the next time it happens and listen to the tank to see if there is a suction noise.
Vapor lock? Try pour water over the fuel pump and lines to see if it will start again. If it does then it will likely be vapor lock and post back.

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txgrn

07-03-2005 04:41:31

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Re: Ford 2000 vapor locking? in reply to frankiee, 07-02-2005 17:12:55

Vapor lock is caused by suction. Reduced atmospheric pressure of the fuel (caused by suction) causes the fuel to "boil" and the gas (vapor) is what keeps your engine from running.

So where do you have suction? If you have a fuel pump like in a car, the fuel pump does it.

If you have gravity feed like in a tractor, gravity has to do it.

In either case the suck pressure exceeds the supply of fuel and that produces the reduced atmospheric pressure..... so you are looking for what would cause a restriction of the fuel supply!

On an up draft carb (which most tractors have) with the bowl removed from the carb, dropping the float should cause a stream of gas coming out of the carb about half the diameter of a pencil. Might get a suitable can and just let it run for a gallon or two and see if the problem develops in front of you (that is if you have an adequate stream to start with). Then start trouble shooting and don't overlook the fuel tank not venting (as mentioned).

Mark

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frankiee

07-03-2005 04:33:09

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Re: Ford 2000 vapor locking? in reply to frankiee, 07-02-2005 17:12:55

Just remembered. Try a bit of cooling water on the ignition coil when it won't start.
Could be coil getting hot and breaking down.
I think that is it.

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steveormary

07-02-2005 21:07:44

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Re: Ford 2000 vapor locking? in reply to frankiee, 07-02-2005 17:12:55

Fuel should flow generously into and out og the sediment bowl. Also should flow generously thru the carb. when the drain plug is removed from the bottom of the carb.

Good luck,have fun,play safe.

steveormary

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