24v fuel pump

[vinnytruck]

Ok guys, here it goes...I read all the threads on fuel pumps. No help, why -because I dont know what(---) I am doing...If anyone can help please do: I would like to know what kind of fuel 24v pump to buy,(by # & brand)(lets try to watch the pocket also) do I need water seperator, and a regulator,gas filter(what kind also) I would have like to keep the org. pump but everyone is telling to change to 24v, I dont know why but maybe preformance? My son and I are ready for this quest, we already changed out the gas tank.(step one) I NEED all the help I can get, this is our first project together and I know as much as my son (he is 14). From this day on PLEASE bear with me, I dont want to go to a machanic. THE QUEST BEGINS NOW, anybody out there want to give up some knowledge. THANKS in advance VinnyTruck

[52 M-42]

vinnytruck, I would help you if I could, but I've always stuck with the original, mechanical pump. In 32 years of owning my truck I've only ever replaced that pump once. I like the ability to pump it by hand (the lever) and I still run vacuum wipers. So maybe I'm just "old school" but I like the original parts because then my manuals "work".

Good luck on the electrical pumps.

Sorry I couldn't help you.

52 M-42

[M37UK]

Hi Vinnytruck

When I bought my '52 truck it came with an electric pump in the engine bay.
This wasnt ideal as it often resulted in vapor lock problems and I wasnt too keen on the potential for fuel pump leaking and spraying everywhere over a hot engine/manifold!!.
So I decided to go with a 24v version of the Facet pump:
http://www.facet-purolator.com/gold-flo.php

I mounted the pump on the support beam in front of the fuel tank and have had no problems with it in the last year or so.
The pump is regulated at 4-5.5psi, has a built-in filter which can be easily cleaned and is able to pump 24" vertically.
They are not cheap, but then I would not want to rely on a cheap fuel pump.
Charles at M-Series Rebuild has supplied a fuel pump cut-off switch that will activate if the engine oil pressure drops.

I dont have the problem with vacuum wipers as I converted these to 24v last year.

I hope this is of some help to you in your quest.

Stu

[CTgreen]

My new M37 didn't seem to be pumping fuel with the stock pump. I didn't know the condition of the tank inside (looks good outside). I tried to run the truck on an auxiliary gravity feed tank to the carburetor, but there wasn't enough fuel pressure to open the needle and seat in the carburetor. I took a 24V electric fuel pump off a generator I have. I mounted it on the inner fender. Now the truck starts right up and runs good. Lots of vehicles use electric pumps. My only concern is that in an accident, the pump will continue to pump fuel even if the engine is off, but ignition is on. I got some good info from this site on an affordable mechanical civilian fuel pump that will fit and work on the M37. Just make sure the battery is disconnected when you are working on installing an electric pump (if you do), and have a fire extinguisher handy any time you are working with fuel. An electric fuel pump is a simple install. It has a fuel in side (attach to line from tank) and a fuel out side (attach to line to carburetor). Run the power wire for the pump to a terminal that is only hot when the ignition is on. Or, run the fuel pump wire to a hidden switch, and then to a power terminal. It will give you a little security against theft by amateur thieves/joy-riders. The pump should be grounded bu the mounting hardware. It is a good idea to have a good, large fuel filter BEFORE the fuel pump. Check the PSI of the electric pump. If it is too high, you should have a fuel pressure regulator between the pump and the carburetor. Hal in CT

[N1VSM]

Short answer - if you are looking for any 24V accessory, think Marine (boat, not grunt).

I have a Walbro 6000 series pump in my M37, 24V, 4 PSI, 33GPH. Walbro has since changed the numbering scheme, and I think they may have discontinued this model. The 4 PSI is important. If you buy a pump that has an output pressuer higher than that, you'll need a regulator. These pumps push better than they pull - mount it near the gas tank.

As for a filter, I got a clear in-line fuel filter from NAPA. Not sure the model number, but if you tell them the engine you have, they'll (hopefully) get you the right one.

My fuel system goes like this: Tank -> stopcock (I put that is as a failsafe) -> filter -> pump -> lines (all new) -> carb (rebuilt). I took my original pump out of the system, but you can leave yours in line if it is still ok.

[vinnytruck]

Hi Guys, Just a wonderful mention: N1vsm,Ctgreen,M37uk,52 m-42 THANK YOU , I will be starting this weekend, I will let you know. VT