Fuel Pump for 6 Cylinder Engines

[plym_46]

[SD Glenn]

I have an electric pump on the 29 Model Coupe (it was there when I got the car) The original vacuum pump was long gone. I would like to have one, just to see if I can make it work. The 39 has the original mechanical pump, and works fine. Neither of these car would take much to make them Judge worthy. However, I like the cars (which I consider oringinal, the shape they were in when I drove them growing up). The 39 in more or less in that shape now, with a restoration from probable the 60s. I drive it daily and enjoy it very much. (The old patenna) I probable will paint it, maybe later this summer but right now it is fine like it is. I don't worry about comments from the guys that like them only to take a trophy, that is their thing and that is great, if I get one in that shape I probable would still drive it more than i should. lol  I have been lucky, the shape these 2 cars were in when I got them, sure saved me a lot of work. lol
Take care
SDGlenn

[plym_46]

Oh dear I hope he (Four Door) dosen't read the weldable head lamp rim post some guy is talking about Frenching his head lamps...
As far as an electric fuel pump.  They should be mounted as close to the tank as possible as they push better tha they pull.  They will also push through the check valves in the mechanical pump, so you can leave the mechanical pump in place and plumbed as normal, and runn the flow from the electric pump through it.  No one will be the wiser.  Unless the judges notice the wirig and pump when perusing your under carraige.

As far as being disqualified and removed from the judging field, I doubt that any show cahir person would let that happen to a registered member or guest. 

I have showed my car at a number of national POC events. Its one of those terrible modified cars with dual carbs and a improper engineering series engine.  I chose to have it judged once, and since thn have registered as a nonjudged entry.  Funy thing is it seems to engender more interest, comments and questions than the trailer queen over restored hundred pointers parked down the row. 

I had my fingers crossed when I registered.  Hope yall don;t hold it against me.

I believe the club needs to lighten up a bit, to attract more members who might have an interest in preparing and present THEIR PLYMOUTHS the way they like them rather than how they left the factory.  After all they are still Plymouths, are are being used and enjoyed instead of sheltering away in their climate controlled trailers. 

[MRR41 COUPE]

I wish that when I spent 8 years rebuilding my 41 p-12 that all that I would of had to do was change out the 6volt fuel pump and replace it it with the mechcanical pump. Thanks for keeping the old plymouth running and out of the junk yard. I would have loved to have started with your original 6 volt car. It might have taken 1 month instead of 8 years. THANK YOU FOR NOT DESTROYING THE OLD PLYMOUTH.

Mike

[SD Glenn]

Patsy13, See what you started, sure hope you're satisfied. LOL.  Sorry we got off on a different topic and I hope you got the information you needed to complete your project. Seems this happens often with other topic also, that is probably the charm of it. lol  I still enjoy this site.
SD Glenn

[SD Glenn]

This is all good reading and it is what we all strive to do, however, there are some limits to what can be accomplished with the $$ available. Some people do their best. (It is HAILING like mad out here right now. lol )  Some people might read this as Four Door does, some like I do, some like you do.  I don't think the below statement is to lock us in or out of the Plymouth Club. We all have our own way of interpreting anything. I don't think anybody is hurting the POC or disrespecting the POC. We all do our own thing with what we have and are happy with, this site is great when anybody can write anything they want about anything they need help with. If you think this is offensive, discribe offensive.

THE OFFICIAL POLICY OF THE PLYMOUTH OWNERS CLUB, INC. IS TO PROMOTE THE CORRECT AND AUTHENTIC RESTORATION OF THE PLYMOUTH BRAND AND TO DISCOURAGE ANY ACTIVITIES, IDEAS OR PHILOSOPHIES CONTRARY TO THESE AIMS." The views expressed and information exchanged on this website are not necessarily the official position of the Plymouth Owners Club, Inc. The Plymouth Owners Club reserves the right to remove any material that members find offensive, discussion members who post offensive material may be denied use of the board. All information exchanged on this forum is assumed at the readers own risk and the Plymouth Owners Club, Inc., its officers, directors and members are not liabile in any manner for the accuracy of information exchanged on this bulletin board.

SD Glenn

[TodFitch]

... Please cease and desist from this discussion. ...

Hmmmm. I'm pretty sure that Mark Olson (the webmaster here) and Jim Benjaminson (long time member of the Plymouth Owners Club's management) follow these forums fairly closely and would mention it if the topic strayed too far off the club's "politically correct" position. I also happen to know the current national POC president and would be very surprised if adding an electric fuel pump to a touring car would bother him.

Yes, you'll get points deducted for having that on your car at a judged car show. And they could be enough points to take you out of the running for any prize. That is your choice as the owner of the car.

So who the heck are you and who assigned you the position of forum enforcer?

By the way, I much prefer my cars "stock" and have, in fact, done pretty well at national POC judged shows with my car. That is my preference but I certainly understand others desires and/or needs might be different.

[RC Drown]

I have to agree with Pat and SD Glenn, these cars were made to drive and enjoy, with the prices skyrocketing, keep it as cheap as possible, but safe as possible at the same time.  I for one have had my 1940 Plymouth since 1988, so far this year I have driven it 680 miles since Jan first.  I have 15 inch radials on Jeep rims as I couldn't afford the 6X600-16's.

I have been a member of the POC since 1994 and I would imagine I have more miles driven than 70-80 percent of our members, but is she correct, heck no and I don't have her judged at any shows I attend, but by God I drive her as much as possible and believe me I get many thumbs up and the older people, I am almost 64, tell me about their parents or grandparents having one also.

My Thoughts,
Bob

[36 Ply]

I've been a member of POC since 1975, and I completely agree with SD Glenn's comments below. I've owned two '36 Plymouths (4 door touring sedan 1969-90 and convertible 1990-2012). I've driven them from Illinois to Georgia, Niagra Falls, Kansas and Oklahoma and back.

My grandkids don't care what fuel pump feeds the engine, they just like the car. When I croak and the car is sold, it can easily be returned to stock.

Nobody knows everything about everything; for one thing, Mr. Four Door, you have spread misinformation by posting that modern cars only have disc brakes in the front. Just relax, if you don't like the posts from those of us who drive our cars, just don't read them. I won't be seeking to have my '36 judged anytime soon, so it won't be an issue.

Pat O'Connor

[SD Glenn]

I agree with you partialy, Use original if you can. However, I remember way back in the 40s even, we used electric to repair these old cars. Now days some of us can not afford the "repair" or "repalcement" of some of the items (NOS) the vendors want for these "old" items (Just because people like you can afford to pay the big bucks to buy them).  Does that mean we have to quit using our pride and joy, or talking about it, to please you?. This site would die...  I think not, and I have never heard, or saw, where the "site administrators" even attempted to correct anyone for talking about such things  here.  lighten up.
SD Glenn

[Go Fleiter]

the scetch just shows the layout, the e-pump is directly lateral to the original one at same hight.

I never ha dto use it in emergency to feed the engine while driving, but it may work for this too.
I just use it to flood the carb after longer rests, especially to get rid of the vapot lock gas bubbles.

[Lew]

GO's diagram shows installing the "auxiliary elec. pump" in parallel, rather than in-series( or in- line) with the gas line to the carb. Is this a preferred method? It seems this may avoid extra pressure on and wear of the mechanical pump diaphragm having to pull gas through the "elec." pump.
Some say it's better to locate the "elec" .pump close to and lower than the tank,probably on the frame.If so, there would need to be another long length of gas line to go to the T fitting mounted on the "out"  line from the mech. pump.
Would it be OK to mount the "elec" pump up closer to the engine to avoid more plumbing?

[36 Ply]

I agree with Four Door that electric fuel pumps are not needed. The '36 Plymouth 4 door that I owned from 1969-1990 had an original type mechanical fuel pump. When I bought my present '36 convertible in 1990, it had an electric Stewart-Warner pump installed, and a blockoff plate in place of the original mechanical pump. I ran it with the S-W pump until it began to fail two years ago. I did some research and bought a Carter rotary vane pump ad installed it (see below). And I am my own mechanic, including, but not limited to, replacing the front leaf springs on the car by myself (8 hour job) two years ago.

Pat O'Connor

[36 Ply]

I've been using a 6 volt Carter P4259 electric pump for a couple of years. It was about 110 bucks from Summit Racing. If you buy one, you will also need an adjustable fuel pressure regulator between the pump and the carb. Ballpark PSI is about 3 PSI; once I adjusted mine (trial & error), my '36 Plymouth is running well. The Carter pump puts out about 6 PSI without a regulator, which is too much for the '36. It is a rotary vane pump, so there's no diaphragm to be attacked by modern fuels. I also installed a clear fuel filter between the tank and the pump.

Pat O'Connor

[Lew]

see posts from Jan 07,2012 and prior for elec fuel pump .
Then and Now has the new fuels type mech. pump diaphragms.The old style rubber or other types won't stand up well
to modern fuels. Many folks suggest BUNA N (fabric) reinforced nitrile rubber as the material.
LR

[Go Fleiter]

I use an electrical gas pump in  shunt  setup. 
It is only used for the starting procedure, as the mechanical pump is in good working condition. As I have a 12 V pump in my 6 V system, I didn?t put a pressure regulator.
Works perfectly, but never had to use it as emergency feeding with failing nechanical pump while driving.
I just wanted to avoid to have the starter move the whole engine just to get some gas to the carb.  I use it since ~10 years only to balance out vapor lock plus long parking periods.
Gas line shunt is fuel hoses just clamped together.
Will not be electible when judged. unless You unclamp all back to the original setup.
Greetings! Go

[TodFitch]

Antique Auto Parts Cellar also doing business as Then and Now Automotive has rebuild kits if you want to do it yourself but I think they also will do the rebuilding.

[patsy13]

Does anyone know of a quality rebuilder for flathead 1946-1948 Plymouth fuel pumps?  I want someone that can rivet and stake the operating pin properly and do a quality rebuild on my fuel pump.  Also does anyone have info on electric fuel pump replacement?