fuel pump

RonS

Has anyone installed a carter rotory vane fuel pump(gp4259) in a stepdown? Where did you mount it? I was going to place it in front of the riser of the trunk ie behind the diff. NG, the stabilizer bar was less than 1 inch below the pump & could not move it to the right due to the exhaust pipe.??

[Deleted User]

Ron - I put mine below the right front passenger seat in the floorboard recess (as you look at it from underneath). It was easy to cut and bend the fuel line to splice in a filter & the pump. If you're smarter than me, you'll disconnect at the gas tank so you don't start siphoning out gas while you work! Good luck.

J Cronk

RonS

I saw that spot, used to have a solenoid type there, but two problems: the plugs are below the frame(sub frame) exposing the pump to road debris, and AACA judges would have to be blind not to see it. Thanks for your response.So far, I think I'm stuck with the solenoid type mounted over the fuel tank. At least they are cheap and easy to change out. I can squeeze under the car if nneed be.

Park_W

Ron, be sure to take note of the thread here on putting a bypass line around that pump, unless you're going to use it full time. And BTW, I've petitioned the AACA judging folks to extend the exemption for electric fuel pumps to all 6v non fuel-injected cars. The current pre WW II cutoff has no logical basis. Let's hope they'll agree and change it.

RonS

Park,I have a photo of your installation I downloaded of the forum, I thought that was your 47. I'm curious to hear the AACA response. I do alot of judging for the AACA, was at New Bern 2 years ago. At the Palm Springs meet last year, unreseptive to the idea of adding post war cars to the standards, would be an understatement. Again at the Tucson meet, but at least Terry Bond listened.I hope they add 1946 and on. We have a Grand National in Ca.next Aug. I might enter Henrietta( my 53). So I have three concerns, drivability in the Az summer,safety and original appearance. At this time I would wish to stay with only an electric, the solenoid pump works well, but for how long? At least I can change one on the road in 15 minutes with only a set of pliers.Thanks Ron

[Deleted User]

Ron if your concern is what an AACA judge will do if the pump is spotted... install the pump in the trunk and put a picnic basket over it. Or if this is not within bounds... put it in the trunk and remove it before the car is judged. My pump is mounted to the rear side rail and is protected by a piece of rubber much like the master cylinder.

My car is not entered in any judging competition either.

Park_W

Ron, the photo that was on the thread here was indeed of our '47. But I had the 12v version of the same pump on the Hornet until the pump motor burned out. With the Hornet, I recall having some fuel flow problems when I'd be heavy into it up a hill, or passing someone. Tinkered a bit with float drop in the carbs, but never really eliminated the problem. It only happened once in a while, so I didn't worry about it. But now, based on the more recent experience with the '47, I realize the problem with the Hornet back then was probably the rotary vane pump. I have a simple "clicker" electric on the Hornet nowadays, and have encountered no flow rate problems.

RonS

What is a "clicker pump"? Do you mean a solenoid type, ie, small brass pump that resembles a gas filter@3.5 inchs. Those ran well in my Hornet, but reliability is a question. The counterman at an auto parts store here said the Airtex have a 30% failure rate, and a buddy who is a mechanic won,t install them is customers cars any more. Mine lasted 8 years in the Hornet & my Cadillac has been 10, but they were only used for occasional help when the mech stated to fade. The Cad never has a fuel delivery problem. Anyway I bought a AC Delco at Rock auto,only $44, and carry a spare in the trunk.... along with a blanket.

Park_W

Ron ... yes, I was referring to the solenoid operated pumps of various types. I'm running one of the "looks like a fuel filter" types, used just for emergency or carb filling after the car's been sitting. Six years now with no problems. I'd go with the rotary vane type if it were going to be the sole pump (original pump removed or bypassed).

[Deleted User]

I put in a Purolator #12S electronic fuel pump about 10 years ago, I call it thumper for obvious reasons. It is a 4-7 psi pump 35gph, works fine, but do not run low on gas, happened to me once shortly after installing the first one and wrecked the other pump, but this one has been very reliable and is the only fuel pump on car (I do have a spare just in case). I bought a carte rotary vane fuel pump and a check valve and intend to install keeping the Purolator as a spare and run on a switch. I bought this one from Pep Boys and a second one from Auto Zone or whatever it was 10 years ago. If you go with this pump be careful because they also sold one's that were only 1-3 psi.:)