The Ford Barn

ScubaChief60 · 01-28-2024, 11:17 AM

Hello to all...

It's my nature and from my training to build redundancy into systems. I have 3 separate ways to heat my home... I have backup power... I have surplus food stores... you get the idea

... and now I'm considering the fuel pump for my 1935 V8.

Mechanical pump was rebuilt by Charlie in Buffalo... working well.

If the mechanical pump does ever cease pulling fuel from the tank then I'd like to have a 'Plan B'.

I am considering placing a 6 V electric pump in the line between the tank and the mechanical fuel pump. Both pressurized to 4.5 PSI. The electric pump seems to have a clear passage so that the mechanical pump can pull fuel right through it.

Id operate the electric fuel pump by use of a toggle switch and use it only as needed.

So... shoot holes in this idea... or advise even better ideas.

Take care all!

Tim Ayers · 01-28-2024, 11:45 AM

Quote:

Originally Posted by ScubaChief60

Hello to all...

It's my nature and from my training to build redundancy into systems. I have 3 separate ways to heat my home... I have backup power... I have surplus food stores... you get the idea

... and now I'm considering the fuel pump for my 1935 V8.

Mechanical pump was rebuilt by Charlie in Buffalo... working well.

If the mechanical pump does ever cease pulling fuel from the tank then I'd like to have a 'Plan B'.

I am considering placing a 6 V electric pump in the line between the tank and the mechanical fuel pump. Both pressurized to 4.5 PSI. The electric pump seems to have a clear passage so that the mechanical pump can pull fuel right through it.

Id operate the electric fuel pump by use of a toggle switch and use it only as needed.

So... shoot holes in this idea... or advise even better ideas.

Take care all!

Very common to do it just like you planned. I think the type of pump you are looking for has a trade name, like flow through, etc., but I'm not 100% sure.

Merc Cruzer · 01-28-2024, 12:07 PM

I not only have the back up electric pump on the car but a fully restored back up pump in the box. I still believe that if you have a back up you will never need it. So far that has worked for me.

Ol' Ron · 01-28-2024, 12:11 PM

Sounds good to me. I use only intank pumps. Junkyards are full of them!
Gramps

ScubaChief60 · 01-28-2024, 12:52 PM

Thanks! I really appreciate the information!

1942deluxe · 01-28-2024, 01:24 PM

Sponsored Links (Register now to hide all advertisements)

On the pumps Charlie has done for me he has marked 2.5 lbs. pressure.

ScubaChief60 · 01-29-2024, 07:37 AM

Thanks/// I'll look mine over now that you mentioned that.. and consider if there would be any issues as a result of the difference

Ron_r1959 · 01-29-2024, 12:29 PM

I run an electric in-line pump on my 41 that is 4-5 psi and the mechanical is 2-3, it doesn't cause and issues really. I use it mostly to prime the system after its sit for awhile. Just keep in mind most electric pumps work best close to the tank, they are made to push mostly. If you put a inline filter in, put it after the mechanical pump. If you are all ate up about keeping the pressure down you can put a pressure regulator after the main pump if you want.

FlatheadTed · 01-29-2024, 03:19 PM

4.1/2 is to high for continuous use .

51woodie · 01-29-2024, 06:59 PM

I installed an electric pump for backup on my '46 Coupe, and as other do, I just use it for priming. Make sure the pump you get is "flow thru", and kep in mid the polarity when connecting, if you have + ground. Charlie in NY did my pump for me, and it came back marked "2.5 PSI.

ScubaChief60 · 01-30-2024, 06:56 AM

Great information. My expected use will be for priming the mechanical fuel pump. I had an instance where the mechanical fuel pump lost it's prime and I could not get it re-primed and had to be towed. Thanks Hagerty! I now keep a 1/2 wrench and a hand operated suction pump with me in the car (Plan 'C') so I can disconnect the fuel line at the carburetor and pull fuel all the way thru to the carburetor. I installed the electric fuel pump and it's operated by a toggle switch under the dash...(on a 15A fuse close to the power supply). So I feel good about my setup now. Thanks for all of the information!

FlatheadTed · 01-30-2024, 02:28 PM

Mechanical pumps are reliable ,Check your pipe to the tank ,loose connections were pumps and filters have been removed and joints are sucking air etc .I have done two cars lately were the push rod had warn to half of what it should be .We use a push button under the dash for priming electric pumps .Ford pumps which are basically A/C pumps recommend 2,1/2 PSI for a 97 in the book . I did have a pump Fail were the arm chomped out the slot on the diaphragm rod likely due to a non harden steel rod or a dried out diaphragm because the car had been in storage ,Ted

falconedsel · 02-02-2024, 03:38 PM

That is how I have my 48 setup. It also helps on really hot days. When my car starts with vapor lock, I switch on the electric pump and no more issues. I turn it off right away. Great contingency plan.

ScubaChief60 · 02-09-2024, 02:50 PM

I have been using the electric pump now for a week or better. My procedure is set the ignition and choke then press the starter switch... if V8 does not start immediately... which has only been a few times... i run the electric pump to set a prime. Run it about ten seconds. So far that has been great!

01-28-2024, 11:17 AM	#1
ScubaChief60 Senior Member Join Date: Mar 2023 Location: Summerfield, NC Posts: 153	Fuel Pump 'Plan B' Hello to all... It's my nature and from my training to build redundancy into systems. I have 3 separate ways to heat my home... I have backup power... I have surplus food stores... you get the idea ... and now I'm considering the fuel pump for my 1935 V8. Mechanical pump was rebuilt by Charlie in Buffalo... working well. If the mechanical pump does ever cease pulling fuel from the tank then I'd like to have a 'Plan B'. I am considering placing a 6 V electric pump in the line between the tank and the mechanical fuel pump. Both pressurized to 4.5 PSI. The electric pump seems to have a clear passage so that the mechanical pump can pull fuel right through it. Id operate the electric fuel pump by use of a toggle switch and use it only as needed. So... shoot holes in this idea... or advise even better ideas. Take care all!

01-28-2024, 12:07 PM	#3
Merc Cruzer Senior Member Join Date: Jul 2010 Location: Conifer, Colorado Posts: 2,429	Re: Fuel Pump 'Plan B' I not only have the back up electric pump on the car but a fully restored back up pump in the box. I still believe that if you have a back up you will never need it. So far that has worked for me.

01-28-2024, 12:11 PM	#4
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: Fuel Pump 'Plan B' Sounds good to me. I use only intank pumps. Junkyards are full of them! Gramps

01-28-2024, 12:52 PM	#5
ScubaChief60 Senior Member Join Date: Mar 2023 Location: Summerfield, NC Posts: 153	Re: Fuel Pump 'Plan B' Thanks! I really appreciate the information!

01-28-2024, 01:24 PM	#6
1942deluxe Senior Member Join Date: Jan 2011 Location: Albion, PA Posts: 713	Re: Fuel Pump 'Plan B' Sponsored Links (Register now to hide all advertisements) On the pumps Charlie has done for me he has marked 2.5 lbs. pressure.

01-29-2024, 07:37 AM	#7
ScubaChief60 Senior Member Join Date: Mar 2023 Location: Summerfield, NC Posts: 153	Re: Fuel Pump 'Plan B' Thanks/// I'll look mine over now that you mentioned that.. and consider if there would be any issues as a result of the difference

01-29-2024, 12:29 PM	#8
Ron_r1959 Member Join Date: Aug 2021 Posts: 78	Re: Fuel Pump 'Plan B' I run an electric in-line pump on my 41 that is 4-5 psi and the mechanical is 2-3, it doesn't cause and issues really. I use it mostly to prime the system after its sit for awhile. Just keep in mind most electric pumps work best close to the tank, they are made to push mostly. If you put a inline filter in, put it after the mechanical pump. If you are all ate up about keeping the pressure down you can put a pressure regulator after the main pump if you want.

01-29-2024, 03:19 PM	#9
FlatheadTed Senior Member Join Date: May 2010 Location: Auckland Posts: 4,705	Re: Fuel Pump 'Plan B' 4.1/2 is to high for continuous use . __________________ http://www.flatheadted.com Flathead Ted brake Floaters ,

01-30-2024, 06:56 AM	#11
ScubaChief60 Senior Member Join Date: Mar 2023 Location: Summerfield, NC Posts: 153	Re: Fuel Pump 'Plan B' Great information. My expected use will be for priming the mechanical fuel pump. I had an instance where the mechanical fuel pump lost it's prime and I could not get it re-primed and had to be towed. Thanks Hagerty! I now keep a 1/2 wrench and a hand operated suction pump with me in the car (Plan 'C') so I can disconnect the fuel line at the carburetor and pull fuel all the way thru to the carburetor. I installed the electric fuel pump and it's operated by a toggle switch under the dash...(on a 15A fuse close to the power supply). So I feel good about my setup now. Thanks for all of the information!

01-30-2024, 02:28 PM	#12
FlatheadTed Senior Member Join Date: May 2010 Location: Auckland Posts: 4,705	Re: Fuel Pump 'Plan B' Mechanical pumps are reliable ,Check your pipe to the tank ,loose connections were pumps and filters have been removed and joints are sucking air etc .I have done two cars lately were the push rod had warn to half of what it should be .We use a push button under the dash for priming electric pumps .Ford pumps which are basically A/C pumps recommend 2,1/2 PSI for a 97 in the book . I did have a pump Fail were the arm chomped out the slot on the diaphragm rod likely due to a non harden steel rod or a dried out diaphragm because the car had been in storage ,Ted __________________ http://www.flatheadted.com Flathead Ted brake Floaters , Last edited by FlatheadTed; 02-06-2024 at 10:05 PM.

02-02-2024, 03:38 PM	#13
falconedsel Junior Member Join Date: Jan 2024 Location: El Paso Texas Posts: 12	Re: Fuel Pump 'Plan B' That is how I have my 48 setup. It also helps on really hot days. When my car starts with vapor lock, I switch on the electric pump and no more issues. I turn it off right away. Great contingency plan. __________________ Carlos Marquez 48 Ford Sedan 57 Ford Skyliner

02-09-2024, 02:50 PM	#14
ScubaChief60 Senior Member Join Date: Mar 2023 Location: Summerfield, NC Posts: 153	Re: Fuel Pump 'Plan B' I have been using the electric pump now for a week or better. My procedure is set the ignition and choke then press the starter switch... if V8 does not start immediately... which has only been a few times... i run the electric pump to set a prime. Run it about ten seconds. So far that has been great!