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Posted

For about the same price you can pick up a 6v or 12v electric Airtex fp at the flea markets. These newere pumps are not affected by the ethanol that has been added to the gas and also act as a backup to the mechanical pump if it fails. The electircal will pump throught the mechanical if it goes south. Also this willhelp if you get a vapor lock on the old flat head engines in the summer.

You might want to consider this over the old mechanical first.

rich

desoto1939@aol.com

Posted
For about the same price you can pick up a 6v or 12v electric Airtex fp at the flea markets. These newere pumps are not affected by the ethanol that has been added to the gas and also act as a backup to the mechanical pump if it fails. The electircal will pump throught the mechanical if it goes south. Also this willhelp if you get a vapor lock on the old flat head engines in the summer.

You might want to consider this over the old mechanical first.

rich

desoto1939@aol.com

What is vapor lock?

Posted

What year car are you looking for send me the car and the year and model and I might beable to tell you the AC model number. I know that my 39 Desoto flat 6 used the AC 588. Knowing the model is very important for when you go into the store. This helps the sales clerk since they do not have the knowledge of the older cars and sometimes the books do not go back far enough or they do not want to spend the time to look it up for up.

rich

desoto1939@aol.com

Posted

Any new pump you buy now should be ethanol safe too. Just don't buy a 30 year old new one off ebay etc. I rebuilt both the pumps on my car and truck with kits from antique auto cellar. I run ethanol gas in both with no issues.

Posted

The rockauto price should be close to the napa price maybe a few $'s cheaper as you pay shipping but no sales tax. I ordered the airtex electric pump that was discussed on the forum from them it should arrive tomorrow. No real reason other then I want to try a electric and was having fuel problems that may be related to the old pump.

If you use rockauto here is a 5% discount code good until july 26

17924351413745

Posted

Few guys have had trouble with tehe ac588 one shedding its pin that holds the arm in. If it was me I'd try the carter.

Posted
What is vapor lock?

Definition I found online:

Noun

1. a stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the flow of gasoline to the carburetor)

(synonym) vapour lock

(hypernym) blockage, block, closure, occlusion, stop, stoppage

I believe the problem is not so much that the bubbles "block" the gas flow, but that the gas in the hot fuel pump boils, turning into vapor, which does not pump nearly as well as liquid gasoline. The needle valve in the carb would keep gas line slightly pressurized, which helps prevent boiling, but if it leaks or the float drops, the pressure is relieved.

Posted (edited)

:DSpeaking of fuel pumps...... I bought a fuel pump a few years ago as a spare. It's an AC 9418 and when I got it, it didn't look like the one in the P-12 manual. It has no gl*** bowl. Here is some pics. Let me know if this pump will actually fit. Thanks, Tom

post-3900-13585350245741_thumb.jpg

post-3900-13585350246668_thumb.jpg

Edited by P-12 Tommy
To reword a bit
Posted

This is a description of vapor lock - post-423-13585350247494_thumb.jpg.

post-423-13585350248046_thumb.jpg

Posted (edited)

I ordered the Carter fuel pump today from rock auto to keep as a spare. I am getting married end of July on Shelter Island (east end of long island NY in between the fork)and we are using the Plymouth in our wedding. I want to have a spare fuel pump because the drive to Shelter Island is about a 2 hour drive and I hear they can fail without warning. Is there anything else that I should keep in the trunk as a spare besides a tire?

Edited by aero3113
Posted

I take it you meant Carter fuel pump.If you're carrying spare parts for a 2 hour trip you're probably better prepared than most.Usually all I have in the trunk is spare fluids -water,gas,oil,and brake fluid,plus a basic set of tools including a pair of coveralls...Someone in the past included a photo of their emergency road kit - a cellphone :)

Posted (edited)

My bad, carter fuel pump. I'm not too worried the day of the wedding just the drive out. I am going to take the car out a few days early so if there are any problems I can hopefully fix it before the big day.I know its not that long of a trip just want to be prepared.

Edited by aero3113

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