Ok so the new gas has killed 2 rebuilt stock pumps on my 1940, 59a and is on the way to destroying the Napa electric inline (sounding worse and oozing dark goo). I also am dealing with seriously bad vapor lock and boil over issues after shut down on hot days. I looked through some past threads on the subject and it sounds like the way to go is a vane pump that produces no more than 2.5 psi(to accommodate the stock 94 carb) that can be run continuously along with the engine . Who makes a good 12v product that will withstand today's fuel that will not require a regulator to get the 2 or 2.5 psi?
I've been using this one for 2 years now. K&N 81-0400 Electric Fuel Pump, Inline, 15 GPH, 2 PSI, 5/16 Inch Line (speedwaymotors.com)
Goo ? You do have a nice tank correct ? Just funny your gas is that bad - or you running the high test best ? Just throwing some stuff out there.....and where do you get your factory pumps from ?
Using a regulator might be a requirement. Even if a pump is rated to put out 2.5 PSI, that's too much for a Stromberg. I have had a few different electric pumps on my flathead powered sedan. They are all noisy, and all required a regulator to keep the pressure about 1.5 to 2. Right now I'm using a Carter P4070 with a Holley 12-804 regulator. And, we have Casey's gas stations around here that sell alcohol free gas, which is all I use unless I'm traveling out of the area.
Here's some very helpful info. on Fordbarn that deals with your question. Avoid pumps with rubber diafragms. https://www.fordbarn.com/forum/showthread.php?t=275278&highlight=electric+fuel+pump
Some clarification. The black ooze was coming from the case of the pump, not the fuel line. Thanks to everyone so far, looking at the info. posted here so far it is tough to know what to do. I don't want to waste a lot of time and money trying out various pumps, etc.. I would like leave the original pump on the engine if possible but at this point I just want the dang car to run in the heat no matter what. Aaron, can I use the K&N continuously instead of momentarily? 1940, thanks for the links, I checked all of them out. Seems like so many different stories on good vs bad pumps.
I had a few old (like 30 year old) SW electric pumps, these were in a box and if used, not for long. I needed one and began hooking the up to 12 volts to make sure they’d work, about 10 seconds into running them, the clicking got quieter and quit. After the third one I started taking them apart, the diaphragms were just like a black goo as well. This was well before the “new gas” that might have been run through them.
Stonehenge: Also on Fordbarn, there is a fellow (charlie NY) who rebuilds OEM Ford fuel pumps using modern day fuel resistant parts. View this thread and PM him. https://www.fordbarn.com/forum/showthread.php?t=275278&highlight=electric+fuel+pump Also, many of the "traditional old style" canister pumps used years ago were based on the WALBRO design and the parts were interchangeable like AC Delco. Sadly, the new gas turns their innards to "goo" killing the pump. I had several of them and gave them away years ago because of this constant problem. Perhaps WALBRO parts are better now. Just for the heck of it contact WALBRO and see if they have new and improved parts for your pump. https://www.walbro.com/parts-services/
I buy Charlies pump kits with his special diaphragm. You can send him your pump and he will fix it up. Just a great guy to deal with on Old Ford carbs and pumps.
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