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Old 03-12-2009, 11:39 AM   #1
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Using the Fuel Pump to empty the tank - carefully

The car will be sitting for a couple weeks minimum - the night before it dropped a valve seat it was filled up. I was thinking that the gas would be better served by putting it to use in the other car before it goes stale.

Not knowing if there was a screen in the filler tube I thought I might be able to siphon it out. I had just received my Chiltons manual and looked up how to remove the gas/tank to see if they had any recommendations. Chiltons recommended buying a siphon hose from the auto parts store to remove the gas.

I had some 10 feet of 1/4 inch gas resistant hose from HomeDepot that I tried to get into the tank. About three feet went into the tank filler hose before it abruptly stopped. I was able to get almost 2 gallons of the 12 out before it just started to suck air.

It looks like there is a screen in the filler hose.

Anyone know of a way to empty the tank without self combustion or causing more uncertainty in/of part failure?

I was thinking since my engine is completely stripped of everything I might be able to run the fuel pump to pump the gas out. 35+PSI is a concern of fuel injection but there would be no restriction (ok tube diameter) on the flow so maybe this would work. The fuel pumps job is to pump the fuel so it shouldn't have any adverse affect on the pump as long as it isn't run empty for too long?

Anyone have thoughts or experience with this?


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Old 03-12-2009, 01:14 PM   #2
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I;ve done it with a few cars, never a problem. Pop it off by the fuel filter and pump it into a gas can. Easiest way IMO.
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Old 03-13-2009, 10:43 AM   #3
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Personally, I would buy a bottle of sta-bil fuel stabilizer, put it in the tank, jump up and down in the trunk a few times to mix it up and not worry about it.
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Old 03-18-2009, 12:34 AM   #4
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Actually what happened was/is I came across a section in the Service Manual CD titled:
"Fuel Tank Draining (235510)" while looking to see what had to be reconnected to get the fuel pump to work since I had everything stripped off to the short block - (it's more than just the fuel pressure sensor....!).

Any way It says: .......

Note: To enable the hose to enter the fuel tank it is necessary to cut a 40mm long taper at the end.

Drain the fuel from the tank using a 12.5mm nylon drain tube with the approved ford.......


It doesn't say to do this because of a screen - It may even be because of the "Roll Over" valves in the filler line. I used 1/4 nylon tube and about 10 feet - enough so it coiled under its own weight in the bottom of the tank. The auto parts store siphon kit was too rigid, too short and felt as though it curled to the surface and sucked air.

40mm taper = 1.57 Inches
12.5mm nylon drain tube = 0.49 Inches
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