Author Topic: M2 or M2A1 fuel line routing  (Read 5161 times)

steve1973

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M2 or M2A1 fuel line routing
« on: November 26, 2017, 10:16:10 PM »
I was asked to take some photos on how the fuel lines rout from the fuel selector block to the fuel tanks. I though I would post the photos here. As my halftrack, at least the rear portion, is assembles I had to be a little creative in getting the photos. All of my lines were made from remnants of the originals.



looking from the bottom up. Rubber line goes to fuel filter. Left line goes to driver's side tank and right line goes to Passenger's side tank. If you look at the brass plate on the shut off knobs you will not that left and right is reversed.



Another view with camera angled slightly back to see line routing. Lint on left goes to passenger's side tank and line on right goes to driver's side tank.



This photo you see the line on the right, driver's side tank, going through the inboard of the two larger holes leading into the drivers side storage compartment. One other thing to note is that the sending unit wiring follows the same rout for each side tank. I havn't gotten that far with my wiring yet. The out board hole is for the power lines in the metal conduit for the radio junction box.



This is the left line going through the hole leading into the passenger's side storage compartment.



This is the driver's side compartment towards the front. You now see the line coming in bending upwards and runs along the top towards the rear. This is the same routing for the passenger's side.



This is the driver's side compartment facing the rear. You see the line at the top going to the end then a 90 degree bend. At this point a flex line is attached going through a small opening to the fuel tank. Again, this is the same routing for the passenger's side and the sending unit wire runs in the same path.

Steve A.

David

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Re: M2 or M2A1 fuel line routing
« Reply #1 on: November 27, 2017, 06:48:32 AM »
Great photos! 

How is it preferred to run a line from the tank?  I’ve heard some have used various degrees of elbows mounted to the tank and others who have just ran a custom bent metal line straight from the tank.
M2A1 Halftrack

8683jb

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Re: M2 or M2A1 fuel line routing
« Reply #2 on: November 27, 2017, 09:33:41 AM »
Great pictures Steve! These will be a big help when I get to that point on mine. You commented on the fuel valve placard and I have asked why it would indicate the left tank would be controlled by the right valve and the right tank by the left valve. There is no way I would plumb any fuel system that way and I believe the placard is supposed to be installed upside down so when the driver looks down and back, it reads the correct orientation. It makes more sense to me than having the valves reversed. What do you think?
Jon
'42 Autocar M2A1
'41 Nash Kelvinator Ben Hur trailer

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steve1973

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Re: M2 or M2A1 fuel line routing
« Reply #3 on: December 05, 2017, 03:41:51 AM »
Here are some more photos going from inside the storage locker to the gas tank. I used a rubber line for this but a braided line can also be used. Also included are some photos of how the gas tank cover mounts.











Steve A.

yd328

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Re: M2 or M2A1 fuel line routing
« Reply #4 on: December 05, 2017, 07:26:40 AM »
Nice work Steve. What size line did you use?

Thanks Gary