Ford 3000, 1973 Tried everything, need advice.

techegirl71

New User
We have a 73, Ford 3000 Gas
We have changed points, condenser, fuel pump, fuel shut off
valve, coil, rebuilt carburetor, and still it runs for a few minutes
then acts as though it?s not getting fuel. My questions are.
1. Should the sediment bowl be full always?
This one runs about an inch shy of full but has enough in it
that it?s not sucking air.
2. The generator shows 13 on the volt meter and I know it
should run at least two volts above battery? The battery is a
12 volt. So I?m wondering if this is an issue?

Tonight it ran for about 15 min so we thought it was all better
but took it out for a trial and spit and sputtered and died. Let it
sit for a few min started up, spit, sputtered, and died again
and again. Finally limped it back to shed and gave up. Been at
this for three weekends already. Am about to give up.

I?ll post more questions as I think of them. Thanks ahead of
time for any help you can give.
 
Are you aware that there are 4 fuel filters? Board guru Ultradog has explained this several times. This is from memory, so doublecheck me...search user Ultradog and keyword filter:
One in the tank.
Sediment bowl.
One in fuel pump (front of engine, behind fan).
Small screen at inlet of carb.

My first guess is a plugged filter.

Kudos to Ultra for all his knowledge & willingness to share.
 
Also make sure you don?t have crud in the tank. Replacing shutoff valve won?t help if tank is very dirty.
 
A friend of mine just had close to the same problem with an old AC tractor. I thought for sure that it was the ignition switch or coil. Turned out to be a fuel problem. Believe it or not, insects had clogged the sedment bowel. Make sure that you have an uninterrupted fuel delivery, beginning with new fuel or cleaned out fuel screens as some have suggested. Also try running with the gas cap off to see if that solves the problem. Next time it quits, try taking off the fuel line at the carb right away to see if you still have a nice flow of fuel.
 
(quoted from post at 22:07:44 06/10/18 )
1. Should the sediment bowl be full always? This one runs about an inch shy of full but has enough in it
that it?s not sucking air.

Yes! You have a fuel restriction somewhere prior to the sediment bowl. Find it and you'll fix your problem. You're wrong about it not sucking air.

2. The generator shows 13 on the volt meter and I know it should run at least two volts above battery? The battery is a 12 volt. So I?m wondering if this is an issue?

Not an issue unless you're running a heavy electrical load such as lights. Your problem is not an electrical issue. It's a fuel issue.
 
The most likely place for crud is in the shutoff on the bottom of the tank. If the screen is not standing up vertical inside the tank, check there first. Drain the tank, take the valve off and I bet you will find crud wedged inside the passages of the valve. Mine did that twice before I fished out the screen and put it back on the valve inlet. The second place in the path of fuel is a screen in the top of the fuel pump. Check the tank first, as when you remove the top of the fuel pump, you will likely damage the gasket. If you need a new gasket, buy some gasket material from Napa and cut out a new one.

If your sediment bowl is partially full, your problem has to be in either the tank or the pump. That bowl should be totally full.

John
 
Had an odd deal with my 3600. Like you I was about to put a bomb under it! Lo and behold, while inspecting the sediment bowl assembly and filter I discovered that someone had used a common hose washer for a sediment bowl gasket. Not fit for gasoline, the hose washer swelled up to the point where it blocked the inlet passage to the bowl. That was a fuel gremlin that eluded me for a year!
C
 

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