The Ford Barn

dfoster · 10-26-2014, 08:12 PM

I recently purchased a 1941 ford pickup with original flathead and drivetrain. I was having trouble with getting the engine to start so I replaced the points, condenser, but re-used the coil. The vehicle now starts almost immediately. The engine appears to keep fire. My new problem is...once the engine runs for 15 minutes or so, and once I start to feed it more throttle, it wants to quit. In fact if I give it any throttle, it will quit. Could it be fuel deliver? Is the timing need set? Does the points need adjusted? All input would be appreciated.

Tinker · 10-26-2014, 10:15 PM

Sound fuel related but...

I know this seems like a sell... look at having your dizzy done by bubba or skip. Have your coil done by skip. And having your carb run through by a professional.

Coil is really a must. May run well in the driveway but once you go for a trip it leaves you shoulder side. Best investment from a standpoint, granted your time and the cost of doing it. Plus chasing it. Both guys have my approval and wished earlier that I went that route.

My thought anyway.

supereal · 10-26-2014, 10:40 PM

It is safe to say that 99 percent of old coils either affect operation when hot, if they run the vehicle at all.

dfoster · 10-27-2014, 05:50 AM

Tinker, Who is Skip? I'm new to the flathead world so I don't have the resources that most of you guys have. Could you please forward me information on sending a coil to him? The carburetor appears to be rebuilt, but I would gladly send that of as well.

adileo · 10-27-2014, 06:16 AM

Here's the web site where you'll find his contact info.
www.fordcollector.com

jerry shook · 10-27-2014, 06:27 AM

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I have a thread here Disturber problems and my car is acting the same way. when it does start it is cool after driving 10min it is like it is running out of gas and the harder the pull it is worse and it dies. i have tried a new coil condenser and one of Bubbas disturber and it is doing the same thing.

V12Bill · 10-27-2014, 09:10 AM

When you say "coil condenser" do you mean the condenser or the coil or both?

Willit Stop · 10-27-2014, 10:02 AM

Just a shot in the dark here......Is your gas cap vented or non-vented? It should be vented.Try warming up the car, remove the cap and take it for a spin.If your cap is non-vented,the fuel pump will create a vacuum in the tank and the carburetor will be starving for gas.

jerry shook · 10-27-2014, 01:04 PM

Coil and condenser

FlatheadTed · 10-27-2014, 02:09 PM

If it throws a yellow spark of the HT wire then its a Ing problem ,if its blue I would be looking at the carburettor or fuel delivery /pump .Ted

dfoster · 10-27-2014, 02:26 PM

I'll try to respond to several comments:

The condenser I replaced, was attached to the left side to the distributor. It is a seperate piece but apparently is required for the coil to operate properly.

Fuel - I read previous post from others that would theorize it could be vapor locking/fuel related. I did triy exactly what is suggested below. I took the cap off completely and then tried to excelerate the throttle by giving more fuel. This provided me with the exact same result. The engine would die with hardly any added fuel.

FlatheadTed · 10-27-2014, 02:32 PM

What do you mean added Fuel ,Are you tipping fuel down the carb .

mike42 · 10-27-2014, 03:52 PM

dfoster.....I had a similar problem and had the coil reworked by Skip with a new condenser. That was 3 years ago and it runs great still.

Mike

Ken Bull · 10-27-2014, 04:53 PM

This is an odd one but worked for me/check tightness of wires to the resister under the dash/try a new condenser.

dfoster · 10-29-2014, 08:10 PM

Update:

I installed new coil, new condenser and a new resister tonight. Started up first try. Let it run for 15-20 minutes to build engine temperature. It appears to be corrected. Hit the throttle to accelerate the RPM's...it appears to take it OK. Timing might need to be adjusted slightly but otherwise I think It's correct. It could have been the resister but I replaced all 3 items.

Thanks again for all the feedback. It was certainly helpful.

10-26-2014, 08:12 PM	#1
dfoster Member Join Date: Oct 2014 Location: West Virginia Posts: 43	issues with flathead running after engine warms up I recently purchased a 1941 ford pickup with original flathead and drivetrain. I was having trouble with getting the engine to start so I replaced the points, condenser, but re-used the coil. The vehicle now starts almost immediately. The engine appears to keep fire. My new problem is...once the engine runs for 15 minutes or so, and once I start to feed it more throttle, it wants to quit. In fact if I give it any throttle, it will quit. Could it be fuel deliver? Is the timing need set? Does the points need adjusted? All input would be appreciated.

10-26-2014, 10:15 PM	#2
Tinker Senior Member Join Date: May 2010 Location: MN Posts: 7,053	Re: issues with flathead running after engine warms up Sound fuel related but... I know this seems like a sell... look at having your dizzy done by bubba or skip. Have your coil done by skip. And having your carb run through by a professional. Coil is really a must. May run well in the driveway but once you go for a trip it leaves you shoulder side. Best investment from a standpoint, granted your time and the cost of doing it. Plus chasing it. Both guys have my approval and wished earlier that I went that route. My thought anyway.

10-26-2014, 10:40 PM	#3
supereal Senior Member Join Date: Jul 2014 Location: Iowa Posts: 1,634	Re: issues with flathead running after engine warms up It is safe to say that 99 percent of old coils either affect operation when hot, if they run the vehicle at all.

10-27-2014, 05:50 AM	#4
dfoster Member Join Date: Oct 2014 Location: West Virginia Posts: 43	Re: issues with flathead running after engine warms up Tinker, Who is Skip? I'm new to the flathead world so I don't have the resources that most of you guys have. Could you please forward me information on sending a coil to him? The carburetor appears to be rebuilt, but I would gladly send that of as well.

10-27-2014, 06:16 AM	#5
adileo Senior Member Join Date: Jun 2014 Location: New Jersey Posts: 1,772	Re: issues with flathead running after engine warms up Here's the web site where you'll find his contact info. www.fordcollector.com

10-27-2014, 06:27 AM	#6
jerry shook Senior Member Join Date: Nov 2010 Posts: 516	Re: issues with flathead running after engine warms up Sponsored Links (Register now to hide all advertisements) I have a thread here Disturber problems and my car is acting the same way. when it does start it is cool after driving 10min it is like it is running out of gas and the harder the pull it is worse and it dies. i have tried a new coil condenser and one of Bubbas disturber and it is doing the same thing.

10-27-2014, 09:10 AM	#7
V12Bill Senior Member Join Date: May 2010 Location: Mt. Holly,NJ Posts: 1,822	Re: issues with flathead running after engine warms up When you say "coil condenser" do you mean the condenser or the coil or both?

10-27-2014, 10:02 AM	#8
Willit Stop Senior Member Join Date: Feb 2013 Location: Eureka Calif. Posts: 968	Re: issues with flathead running after engine warms up Just a shot in the dark here......Is your gas cap vented or non-vented? It should be vented.Try warming up the car, remove the cap and take it for a spin.If your cap is non-vented,the fuel pump will create a vacuum in the tank and the carburetor will be starving for gas.

10-27-2014, 01:04 PM	#9
jerry shook Senior Member Join Date: Nov 2010 Posts: 516	Re: issues with flathead running after engine warms up Coil and condenser

10-27-2014, 02:09 PM	#10
FlatheadTed Senior Member Join Date: May 2010 Location: Auckland Posts: 4,700	Re: issues with flathead running after engine warms up If it throws a yellow spark of the HT wire then its a Ing problem ,if its blue I would be looking at the carburettor or fuel delivery /pump .Ted __________________ http://www.flatheadted.com Flathead Ted brake Floaters ,

10-27-2014, 02:26 PM	#11
dfoster Member Join Date: Oct 2014 Location: West Virginia Posts: 43	Re: issues with flathead running after engine warms up I'll try to respond to several comments: The condenser I replaced, was attached to the left side to the distributor. It is a seperate piece but apparently is required for the coil to operate properly. Fuel - I read previous post from others that would theorize it could be vapor locking/fuel related. I did triy exactly what is suggested below. I took the cap off completely and then tried to excelerate the throttle by giving more fuel. This provided me with the exact same result. The engine would die with hardly any added fuel.

10-27-2014, 02:32 PM	#12
FlatheadTed Senior Member Join Date: May 2010 Location: Auckland Posts: 4,700	Re: issues with flathead running after engine warms up What do you mean added Fuel ,Are you tipping fuel down the carb . __________________ http://www.flatheadted.com Flathead Ted brake Floaters ,

10-27-2014, 03:52 PM	#13
mike42 Senior Member Join Date: Jun 2012 Location: Gaylord, Michigan Posts: 1,599	Re: issues with flathead running after engine warms up dfoster.....I had a similar problem and had the coil reworked by Skip with a new condenser. That was 3 years ago and it runs great still. Mike

10-27-2014, 04:53 PM	#14
Ken Bull Senior Member Join Date: Dec 2010 Location: Port St Lucie Florida Posts: 398	Re: issues with flathead running after engine warms up This is an odd one but worked for me/check tightness of wires to the resister under the dash/try a new condenser.

10-29-2014, 08:10 PM	#15
dfoster Member Join Date: Oct 2014 Location: West Virginia Posts: 43	Re: issues with flathead running after engine warms up Update: I installed new coil, new condenser and a new resister tonight. Started up first try. Let it run for 15-20 minutes to build engine temperature. It appears to be corrected. Hit the throttle to accelerate the RPM's...it appears to take it OK. Timing might need to be adjusted slightly but otherwise I think It's correct. It could have been the resister but I replaced all 3 items. Thanks again for all the feedback. It was certainly helpful.