The Stovebolt Site Forums The Shop Area Engine Shop Electric fuel pump

My 216 has a Carter W-1. If I were to use an electric fuel pump, how much pressure can this carburetor handle? I have on the shelf a AC EP 42 which specs say maximum output is 4.5 would I need a regulator?

I would say 3 to 3.5 psi at the most. Please avoid any of the inexpensive regulators being sold today. They won't do what you want and honestly may do nothing at all. I have an AutoBest F4027. It claims 2.5 to 4 psi and mine puts out 3 or just a bit more. It works fine. Good luck!

Not likely. That is right at the sweet spot. Those carters are not strombergs that can only handle 3 lbs.

I understand that myStromburg WW is recommended between 3.5 and 4 PSI

I have never found a fuel pressure specification in the Carter information in my possession.

Chevrolet specified fuel pumps with a pressure range of 3 psi to 3 3/4 psi for the Chevrolet sixes from 1932 to 1949 (Carter W-1's).

The allowable fuel pressure will also depend on the orifice in the fuel valve seat.

As far as Stromberg is concerned, many enthusiast infer than any reference to Stromberg carburetors mean the so-called Stromberg 97, which is actually ONE of the Ford variations of the Stromberg type EE-1. This SPECIFIC Stromberg is rated at 3 psi.

But many common Stromberg carbs are rated higher than 3 psi (and some MUCH lower). Examples: 1946 Cadillac 5 psi, 1921 Lincoln 3/4 psi.

For the OP: I would suggest a "vapor return line" rather than a regulator IF the pump overfuels the carburetor. Before speculating, I would try the pump to see what happens. If you are in love with a regulator, forget the "dial type inlines" available for $19.95 to $39.95 at your FLAPS. These "regulators" are extremely useful for someone with a rabbit problem in their garden, and a strong arm! If you go with a regulator, acquire one with an internal bypass, and a return line.

Jon

Thanks Jon. The diaphragm is bad the old glass top pump and needs to be rebuilt, in the meantime, I was hoping to use the AC 12 V electric that I know works that I have just sitting on the shelf until I am able to get a hold of a good kit and overhaul it. Here at altitude in Colorado I know electric is more dependable than diaphragm pumps that vapor lock. I had an old Dodge van that notoriously would leave me stranded before I put on an electric. It would always require a 15 minute nap and then be fine again. When I get back to it I’ll just give it a try and see how it goes and try your suggestions.

Good fuel pump kits are available from the Antique Auto Parts Cellar, a.k.a. Then & Now Automotive in the Boston area. If you get less than prompt response, it is because they are very busy (quality parts!) and extremely short-handed.

Jon

They only answer the phone right now between 10:00 and 6:00 on Monday and Thursday.