The Ford Barn

jstrez5 · 08-03-2013, 02:11 PM

just put a new fuel pump on 39 flat head i cant get fuel to the sed bowl what can the problem be what am i doing wrong. help needed. thanks jim

47COE · 08-03-2013, 02:34 PM

The new fuel pump could be bad, or there is an obstruction in the fuel line, or there is a bad fitting somewhere between the tank and fuel pump that leaks air, or you are out of gas.

At least that is the list of things that have happened to me at one time or another.

Tom

ken ct · 08-03-2013, 02:37 PM

Try priming the engine through the carb,if that dont work,you probebly bought one of those infamous made in China pumps pure garbage. They dont build to corn-gas specs/ Get a rebuilt in USA pump and you probebly got the wrong one anyway. 39 uses a rare off-set hole pump not availible from the big box Vendors. word to the wise. ken ct.

36rgtop · 08-03-2013, 02:38 PM

Found at least one time that the sediment bowl gasket was faulty (was sucking air)

ken ct · 08-03-2013, 02:54 PM

Quote:

Originally Posted by ken ct

Try priming the engine through the carb,if that dont work,you probebly bought one of those infamous made in China pumps pure garbage. They dont build to corn-gas specs/ Get a rebuilt in USA pump and you probebly got the wrong one anyway. 39 uses a rare off-set hole pump not availible from the big box Vendors. word to the wise. ken ct.

PS is this a glass bowl pump ?? ken ct.

jstrez5 · 08-03-2013, 04:35 PM

Sponsored Links (Register now to hide all advertisements)

yes it is a glass bowl. ken i found a screw loose on top of the carb could this be the problem the screw is stripped out.

Bluebell · 08-03-2013, 11:36 PM

If any air can leak at the bowl seal, nothing will happen.
Dismount the pump from the engine again. Remove the pipe from the carb. put your thumb lightly over the outlet of the pump, and work the lever. If that doesnt do it, take the suction pipe off.
The pump should try to blow your thumb off the outlet in the above test.
If you block the inlet only it should suck your thumb into the hole. If you get a positive result here, you have an air leak in the pipe back to the tank.
The above is not a full test of a pump, but it should be enough to tell you if it is going to work at all.
The fittings need to seal correctly.
Why did you get a new pump in the first place?

ken ct · 08-04-2013, 12:30 AM

Quote:

Originally Posted by jstrez5

just put a new fuel pump on 39 flat head i cant get fuel to the sed bowl what can the problem be what am i doing wrong. help needed. thanks jim

You got a stripped hole on a BRAND NEW pump,boy thats quality. Its the wrong pump for a 39 in the first place. 39 should have an offset hole pump on there.All metal construction no glass bowl. These pumps are rare to find and i get $100 to rebuild them and a $50 core chg. if you dont have a correct turnin. The glass bowl will work on there but not Ford correct if its rebuilt correctly.I also rebuild GB ones for $70 but has to be a genuine "AC" one. no aftermarkets. Do what ever you must. ken ct. PM only. Offset holes refers to the inlet an outlet. The outlet is like 3/8" below the leval of the inlet. They are not straight across from each other.

Bluebell · 08-04-2013, 12:46 AM

Ken, He said stripped thread in the carb.

34PKUP · 08-04-2013, 01:27 AM

Quote:

Originally Posted by ken ct

You got a stripped hole on a BRAND NEW pump,boy thats quality. Its the wrong pump for a 39 in the first place. 39 should have an offset hole pump on there.All metal construction no glass bowl. These pumps are rare to find and i get $100 to rebuild them and a $50 core chg. if you dont have a correct turnin. The glass bowl will work on there but not Ford correct if its rebuilt correctly.I also rebuild GB ones for $70 but has to be a genuine "AC" one. no aftermarkets. Do what ever you must. ken ct. PM only. Offset holes refers to the inlet an outlet. The outlet is like 3/8" below the leval of the inlet. They are not straight across from each other.

Pay attention

He said stripped screw in carb

ken ct · 08-04-2013, 05:45 AM

Quote:

Originally Posted by jstrez5

yes it is a glass bowl. ken i found a screw loose on top of the carb could this be the problem the screw is stripped out.

On top of carb no // on top of pump its possible,contact me by PM or cell 1-203-260-5945 ken ct.

Terry,OH · 08-04-2013, 05:48 AM

No the screw on the carb is not the problem in getting fuel to the carb, it may be a problem with a seeping leak later after you get the car running, fix it later. There are some good thoughts posted previously, check them out, especially the flexable fuel line going to the fuel pump, leaking air around it's fittings or swelled closed from todays fuel.

ken ct · 08-04-2013, 05:55 AM

Quote:

Originally Posted by Bluebell

Ken, He said stripped thread in the carb.

yea i missed that,dont think it would cause his problem. omo ken ct.

ken ct · 08-04-2013, 05:56 AM

Quote:

Originally Posted by 34PKUP

Pay attention

He said stripped screw in carb

I know,i know. ken ct.

08-03-2013, 02:11 PM	#1
jstrez5 Senior Member Join Date: Aug 2012 Location: PA Posts: 263	new fuel pump just put a new fuel pump on 39 flat head i cant get fuel to the sed bowl what can the problem be what am i doing wrong. help needed. thanks jim

08-03-2013, 02:34 PM	#2
47COE Senior Member Join Date: Apr 2011 Location: Oregon Posts: 220	Re: new fuel pump The new fuel pump could be bad, or there is an obstruction in the fuel line, or there is a bad fitting somewhere between the tank and fuel pump that leaks air, or you are out of gas. At least that is the list of things that have happened to me at one time or another. Tom

08-03-2013, 02:37 PM	#3
ken ct BANNED Join Date: May 2010 Location: stratford,ct Posts: 5,971	Re: new fuel pump Try priming the engine through the carb,if that dont work,you probebly bought one of those infamous made in China pumps pure garbage. They dont build to corn-gas specs/ Get a rebuilt in USA pump and you probebly got the wrong one anyway. 39 uses a rare off-set hole pump not availible from the big box Vendors. word to the wise. ken ct.

08-03-2013, 02:38 PM	#4
36rgtop Senior Member Join Date: Jun 2013 Location: east coast Posts: 113	Re: new fuel pump Found at least one time that the sediment bowl gasket was faulty (was sucking air)

08-03-2013, 04:35 PM	#6
jstrez5 Senior Member Join Date: Aug 2012 Location: PA Posts: 263	Re: new fuel pump Sponsored Links (Register now to hide all advertisements) yes it is a glass bowl. ken i found a screw loose on top of the carb could this be the problem the screw is stripped out.

08-03-2013, 11:36 PM	#7
Bluebell Senior Member Join Date: Nov 2012 Location: Tauranga, New Zealand Posts: 726	Re: new fuel pump If any air can leak at the bowl seal, nothing will happen. Dismount the pump from the engine again. Remove the pipe from the carb. put your thumb lightly over the outlet of the pump, and work the lever. If that doesnt do it, take the suction pipe off. The pump should try to blow your thumb off the outlet in the above test. If you block the inlet only it should suck your thumb into the hole. If you get a positive result here, you have an air leak in the pipe back to the tank. The above is not a full test of a pump, but it should be enough to tell you if it is going to work at all. The fittings need to seal correctly. Why did you get a new pump in the first place?

08-04-2013, 12:46 AM	#9
Bluebell Senior Member Join Date: Nov 2012 Location: Tauranga, New Zealand Posts: 726	Re: new fuel pump Ken, He said stripped thread in the carb.

08-04-2013, 05:48 AM	#12
Terry,OH Senior Member Join Date: May 2010 Posts: 4,799	Re: new fuel pump No the screw on the carb is not the problem in getting fuel to the carb, it may be a problem with a seeping leak later after you get the car running, fix it later. There are some good thoughts posted previously, check them out, especially the flexable fuel line going to the fuel pump, leaking air around it's fittings or swelled closed from todays fuel.