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11-04-2022, 05:45 PM | #1 |
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Original 1940 fuel sender new tank
I had to replace my original 1940 fuel tank with a reproduction tank. My original fuel sending unit and gauge work perfectly but the original sender wont fit the new tank. Where can I buy an adapter for the tank so I can use the original sender. I've read that the new senders don't work well with original fuel gauges. Thanks
Last edited by my2nd40; 11-04-2022 at 06:27 PM. Reason: Correction |
11-04-2022, 05:47 PM | #2 |
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Re: Original 1940 fuel sender new tank
Check with Yogi's in Iowa as I think they may have them.
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11-05-2022, 08:37 AM | #3 |
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Re: Original 1940 fuel sender new tank
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11-05-2022, 09:14 AM | #4 |
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Re: Original 1940 fuel sender new tank
You can also make your own. Simple piece of sheet metal with a big hole in the middle and 2 sets of mounting holes.
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11-05-2022, 09:52 AM | #5 |
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Re: Original 1940 fuel sender new tank
Ok yogis is for adapting a six hole to a five hole. Won’t work because the original ford sender is six hole too. A sheet metal piece won’t work either too thin.
The adapter that would work will have to be 3/8” thick to raise the sender up. The genuine 40 sender is to big for the hole in the new repro tank. I can make one, but I sure thought someone had them available, maybe not. |
11-05-2022, 10:32 AM | #6 |
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Re: Original 1940 fuel sender new tank
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https://www.tanksinc.com/index.cfm/p...prod/prd99.htm However, make it a closed ring with clearance holes that match your 40 bolt pattern. If there is a marine outfitter near you or a plastic supply that cuts Starboard, stop by and ask them for a small piece that you can use as spacer. It cuts real easy and is not affected by gasolene. https://www.boatoutfitters.com/mater...caAhEGEALw_wcB Last edited by 19Fordy; 11-05-2022 at 12:03 PM. |
11-05-2022, 10:37 AM | #7 |
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Re: Original 1940 fuel sender new tank
You are correct in that the original sender is a keeper, but do change out the float, particularly if yours is of cork, as ethanol fuel will dissolve the varnish and sink the float.
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11-05-2022, 12:27 PM | #8 |
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Re: Original 1940 fuel sender new tank
One of these?
https://www.speedwaymotors.com/Speed...0aAhjSEALw_wcB |
11-05-2022, 01:05 PM | #9 | |
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Re: Original 1940 fuel sender new tank
Quote:
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11-05-2022, 04:32 PM | #10 |
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Re: Original 1940 fuel sender new tank
So is there an adapter to allow old six hole to those new tanks? Is it just a matter of elevation to clear or is it just that the hole is to small?
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11-05-2022, 07:17 PM | #11 |
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Re: Original 1940 fuel sender new tank
If you use the Yogi's or Speedway adapter You can drill out the holes and countersink them to mount the adapter to the 5 holes in the new tank. Then use the 6 holes for the old sender. You will have to cut new threads in the 6 holes and use oversize screws to fasten the old sender. Call Speedway or Yogi's and ask if this can be done.
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11-05-2022, 07:33 PM | #12 |
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Re: Original 1940 fuel sender new tank
Or you could heli-coil the oversize holes in the adapter if they are too big. I have used 10-32 heli-coils to fix stripped threads in 94 carburetor bodies with great success. It looks like the Speedway piece has enough "meat".
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11-06-2022, 12:00 AM | #13 |
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Re: Original 1940 fuel sender new tank
Hard to believe no one is already making the required adapter!
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11-06-2022, 07:50 AM | #14 | |
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Re: Original 1940 fuel sender new tank
Quote:
Last edited by 40ford; 11-07-2022 at 06:19 AM. |
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11-06-2022, 08:12 AM | #15 |
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Re: Original 1940 fuel sender new tank
Can you not do anything with the original tank? I brought three tanks to the LB T swap meet. These are tanks and sending units from long stored '40s, mostly from the sixties. At twenty bucks they didn't get a glance. When I leaned them against the trash at the end of the day, they disappeared quickly. I must have hit the right price point. I've had great luck with the old tanks, as long as I gave them away. Good Luck: Fred A
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11-06-2022, 10:13 AM | #16 |
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Re: Original 1940 fuel sender new tank
I got a tank from Tank's INC. and had the same problem. It has two holes in the top of the tank a 5 screw hole and a 6 screw hole. The 5 screw hole I couldn't even get the float for the sender in it. The 6 screw hole, has the fuel pickup and return tubes mounting plate in it, the bolt holes don't line up with the sender so the holes would have to be drilled to make it work. After paying close to $300.00 with shipping for a tank that needs to be repaired to use, I just fixed my original tank and sealed it.
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11-06-2022, 10:54 AM | #17 |
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Re: Original 1940 fuel sender new tank
That finally answers my question. There's just no fitting the original float through the 5 hole opening. Could the 6 hole opening receive an adapter that would match the original sender?
Other wise there are a lot of junk new tanks out there as far as using original senders. |
11-06-2022, 10:57 AM | #18 |
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Re: Original 1940 fuel sender new tank
As the two previous posts reveal: It's a shame that aftermarket gas tank manufacturers won't make their tanks to accomodate both the old and new sending units or at least provide an adapter ring that fits the old and new sending units and allows the float to be inserted into the tank.
It wouldn't be difficult to to so. It's not rocket science. Last edited by 19Fordy; 11-06-2022 at 11:29 AM. |
11-06-2022, 11:49 AM | #19 |
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Re: Original 1940 fuel sender new tank
Easy to use the Tanks mounting ring in @19Fordy's earlier post #6. Locate a good location for the sender (look thru the existing sender and pick-up holes), layout the sender and screw holes using the new ring making sure to clock the screw holes properly, use a hole saw for the center hole, drill clearance holes for the six screws, clean out the shavings, spiral the ring inside the hole and secure with sewing thread thru a couple of the mount holes, install the sender and gasket with a couple screws, cut and remove the sewing thread, install the rest of the screws, and tighten down.
I've added sender holes to boat tanks along with putting countless heaters in diesel and hydraulic tanks using this method, with never a problem. |
11-06-2022, 12:27 PM | #20 |
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Re: Original 1940 fuel sender new tank
rich b: That's a great idea. Please clarify one question.
After you use have the adapter ring inserted inside the tank and the sending unit screwed to the adapter ring and the sewing thread removed, what prevents the adapter ring from falling into the tank when you have to remove the sending unit? Is the adapter ring held in place inside the tank by a different set of screws than those used to secure the sending unit in place? Or, is the adapter ring held in place with the original 6 screws that secured the OEM sending unit? If so, this means the adapter ring would have to be drilled and tapped for it's own set of 6 screws so that the sending unit could be secured to the adapter ring inside the tank. The end result would be that the OEM sending unit would slipped thru the hole, indexed and be screwed to a set of 6 new threaded holes in the adapter ring. Last edited by 19Fordy; 11-06-2022 at 12:40 PM. |
11-06-2022, 01:44 PM | #21 |
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Re: Original 1940 fuel sender new tank
The senders are mounted in a recessed area of the tank. Mounting elsewhere could lead to clearance problems. More butchery!!!!!!
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11-06-2022, 07:26 PM | #22 | |
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Re: Original 1940 fuel sender new tank
Quote:
The idea of another set of six holes being drilled, tapped, and somehow countersunk in the tank's thin sheet metal would hold the ring in place if the sender was removed; but just over complicates a simple deal. Better idea; if you really did not want the ring to fall in and tank was new or purged, you could drill a couple extra holes and plug weld the adapter ring in place. |
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11-07-2022, 08:45 AM | #23 |
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Re: Original 1940 fuel sender new tank
Yes, plug welding would work on a new tank. If done right, there will be no butchery. There's no harm in skillfully modifying the tank opening to make it work in your situation where you still have an 0EM sending unit and gas gauge in good, usable working condition.
Last edited by 19Fordy; 11-07-2022 at 10:32 AM. |
11-07-2022, 10:59 AM | #24 |
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Re: Original 1940 fuel sender new tank
Another thing I forgot to mention is the baffle inside the tank will interfere with the swing of the original sender float arm, it will hit the baffle and give a false reading, so you could run out of gas when the gauge shows about half a tank. So even an adaptor will not solve that issue. It came down to using a junk repop sender that everyone knows don't work, cut the top of the new tank open and remove enough of the baffle so the arm can complete its travel, then make an adaptor to fit my sender and weld it all back together and seal it, or repair my original tank and use compatible reliable Ford parts.
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11-07-2022, 03:31 PM | #25 |
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Re: Original 1940 fuel sender new tank
All that welding destroys the alloy coating on the steel and now you will have corrosion problems.
Everyone has those stamped steel tanks for sale but this outfit will custom make your tank with 304ss and the sender mounting of your choice. Sorry I don't have any pricing information. https://www.rockvalleyantiqueautopar..._bro_no_43.pdf |
11-07-2022, 06:45 PM | #26 |
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Re: Original 1940 fuel sender new tank
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Here's some interesting reading about this on Fordbarn. https://www.fordbarn.com/forum/showthread.php?p=795280 Looks like that Rock Valley outfit makes some nice tanks. |
11-11-2022, 09:48 AM | #27 |
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Re: Original 1940 fuel sender new tank
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11-11-2022, 10:13 AM | #28 |
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Re: Original 1940 fuel sender new tank
WOW! For $56 it better work!!!! Prices today are going crazy.
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11-11-2022, 10:55 AM | #29 |
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Re: Original 1940 fuel sender new tank
If this is typical, old car enthusiasts will have to return to their roots, making your own parts or adapting discarded parts from other sources. The day of "1-800-car-part" will be done.
Not that that would be a bad thing. |
11-11-2022, 07:31 PM | #30 | |
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Re: Original 1940 fuel sender new tank
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