The Ford Barn

ModelABoy · 07-26-2011, 08:14 AM

New here, been learking for years but now I have a problem I can't figure out.She runs great for about 5 miles than starts sputtering like it's starved for gas.If I pull out on gav some she still will run like a top.new coil ,new plugs ,new condenser.Today I'm going to drain the gas and check gas filters,cars been sitting awhile so maybe filters are plug with crap,than check carb,I hope to get her done for Model a days in Amana Iowa on the 20th.Thanks for your help you guys are GREAT....John

Jim/GA · 07-26-2011, 08:18 AM

I would say you are on the right track. Sounds like plugged fuel filter to me. When it starts to run poorly, also try reaching out and removing the gas cap, see if that helps. The vent holes could be plugged up (insect nest while car sat, etc.).

bogdonj · 07-26-2011, 08:21 AM

loosen the gas cap and see if it runs better

Patrick L. · 07-26-2011, 08:25 AM

It sounds like a fuel delivery issue.. Try driving it with the gas cap loose and see what happens, or, remove it and check for the vents.. Sometimes the gas and radiator cap can get mixed up.. You could remove the fuel line at the carburetor and check for fuel flow and that the fuel line doesn't extend too far into the carburetor.. I think these are the easy things to look at first..

Jim Brierley · 07-26-2011, 10:08 AM

Sounds like it could also be a bad condenser?

Benson · 07-26-2011, 01:01 PM

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Could be something moving around on the bottom of the tank and blocking fuel to the shutoff valve every so often.

Like "gas logged" pieces of cork from the gas gauge float or filler cap or pieces of solder from some one fixing leaks in tank. I am talking about a thin flat piece of solder like you get when you "flick" a gob of hot solder off of a hot iron ... I call them "solder splats".

Looks like a spit ball on the wall!

A "finger filter" that goes inside the shut off valve inlet will prevent these problems.

Jason in TX · 07-26-2011, 01:15 PM

Trash somewhere in your fuel line, or the hole in the gas cap that allows air into the gas tank is clogged.

I had this happen on a car. There was a tiny piece of crud lodged in the needle and seat of the carburetor. Easy fix and back on the road in no time.

07-26-2011, 08:14 AM	#1
ModelABoy Junior Member Join Date: May 2010 Location: Quad Cities,Il Posts: 12	Runs Great Than act like it starves for fuel New here, been learking for years but now I have a problem I can't figure out.She runs great for about 5 miles than starts sputtering like it's starved for gas.If I pull out on gav some she still will run like a top.new coil ,new plugs ,new condenser.Today I'm going to drain the gas and check gas filters,cars been sitting awhile so maybe filters are plug with crap,than check carb,I hope to get her done for Model a days in Amana Iowa on the 20th.Thanks for your help you guys are GREAT....John

07-26-2011, 08:18 AM	#2
Jim/GA Senior Member Join Date: May 2010 Location: Young Harris, GA Posts: 1,821	Re: Runs Great Than act like it starves for fuel I would say you are on the right track. Sounds like plugged fuel filter to me. When it starts to run poorly, also try reaching out and removing the gas cap, see if that helps. The vent holes could be plugged up (insect nest while car sat, etc.). __________________ Jim Cannon Former MAFCA Technical Director "Have a Model A day!"

07-26-2011, 08:21 AM	#3
bogdonj Senior Member Join Date: Aug 2010 Location: Walkerton, Ont. Canada Posts: 623	Re: Runs Great Than act like it starves for fuel loosen the gas cap and see if it runs better

07-26-2011, 08:25 AM	#4
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Runs Great Than act like it starves for fuel It sounds like a fuel delivery issue.. Try driving it with the gas cap loose and see what happens, or, remove it and check for the vents.. Sometimes the gas and radiator cap can get mixed up.. You could remove the fuel line at the carburetor and check for fuel flow and that the fuel line doesn't extend too far into the carburetor.. I think these are the easy things to look at first..

07-26-2011, 10:08 AM	#5
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,091	Re: Runs Great Than act like it starves for fuel Sounds like it could also be a bad condenser?

07-26-2011, 01:01 PM	#6
Benson Senior Member Join Date: May 2010 Posts: 2,599	Re: Runs Great Than act like it starves for fuel Sponsored Links (Register now to hide all advertisements) Could be something moving around on the bottom of the tank and blocking fuel to the shutoff valve every so often. Like "gas logged" pieces of cork from the gas gauge float or filler cap or pieces of solder from some one fixing leaks in tank. I am talking about a thin flat piece of solder like you get when you "flick" a gob of hot solder off of a hot iron ... I call them "solder splats". Looks like a spit ball on the wall! A "finger filter" that goes inside the shut off valve inlet will prevent these problems. Last edited by Benson; 07-26-2011 at 03:33 PM.

07-26-2011, 01:15 PM	#7
Jason in TX Senior Member Join Date: May 2010 Location: ⓉⒺXⒶⓈ Posts: 2,047	Re: Runs Great Than act like it starves for fuel Trash somewhere in your fuel line, or the hole in the gas cap that allows air into the gas tank is clogged. I had this happen on a car. There was a tiny piece of crud lodged in the needle and seat of the carburetor. Easy fix and back on the road in no time. __________________ -------------- Drive it like you know how to fix it! DMAFC / OILERS CC-MC