| Bob56 | -- 01-23-2024 @ 6:31 AM |
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The tank is half full and the gauge reads correctly. If I step on the gas the gauge goes to 3/4 full and if I drive the car it pegs the gauge above the full mark where you can't even see the meter. What might cause this before I swap out the gauge? I have a NOS fuel sender in the tank
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| 37RAGTOPMAN | -- 01-23-2024 @ 11:48 AM |
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HI BOBS56 it would nice to know what year and model you are working on, but I will try to help you PHOTOS would be great. how was the fuel gauge reading before replacing with a NOS, FORD ? or after market ? I would guess the sender is not installed correctly, maybe at the wrong angle [ gas is sloshing it front to back, I think it should be sideways to read correctly, you could remove the sender, hook up a ground wire to it, then move the float and have someone sit in the drivers seat and they can watch the gauge and see if it reads correctly out of the tank [ is the tank new, ? ] a NOS SENDER does not mean it is any good, did you test it before installing ? let hear how you made out, hope this helps 37 Ragtopman, Maine This message was edited by 37RAGTOPMAN on 1-23-24 @ 3:24 PM
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| Bob56 | -- 01-24-2024 @ 4:05 AM |
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1936 Club Cab. Sending unit is installed side to side. With no movement of the car just pressing on the gas it moves from 1/2 to 3/4 full.
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| 37RAGTOPMAN | -- 01-24-2024 @ 7:56 AM |
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Bob56 was the car rewired,? it sounds to me the wiring on the back of the dash cluster is not wired correctly looks like the fuel gauge is acting like a ammeter, ? either that a wire is shorting out the system, I would disconect the generator and run the engine, and see if that make a difference, for testing only if it does,,, go over the wiring in the car, has the car been rewired ? hope this helps 37Ragtopman, Maine
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| Bob56 | -- 01-25-2024 @ 4:39 AM |
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Car has not been rewired. I dropped the tank to clean it out from sitting and put it back in. Prior to that it worked fine
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| 51504bat | -- 01-25-2024 @ 6:47 AM |
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Ground issue from dropping the tank? Just a guess. ______________ No signature
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| trjford8 | -- 01-25-2024 @ 7:36 AM |
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I agree that it sounds like a ground issue. Make up a ground wire and attach it to a screw on the sender. Then attach the other end to a clean spot on the frame to see how the gauge reacts.
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| 37RAGTOPMAN | -- 01-25-2024 @ 1:04 PM |
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if might be a bad ground, but if the gauge reads full it most likely the wire goig to the sender is grounding, I do not think if you loose the ground, the gauge will not read, I would check the wire running along the frame and see if has frayed wiring,,even one of the metal clips could have rubbed threw, the only thing to make a gauge to read full is if you ground the lead going to the back, or a bad sender is faulty When having issues,with a problem. explaining in more detail, helps fellow member to solve your issue, try hooking up the old sender, you said it worked before you changed the sender, now it does not work ? hope this helps 37Ragtopman , Maine
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| TomO | -- 01-25-2024 @ 5:10 PM |
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What is the P/N stamped on the sending unit? I would not change the gauge, it appears that the problem is in the sending unit. Tom
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| Bob56 | -- 01-27-2024 @ 9:54 AM |
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Sorry for the delay. I do not see any part # on the unit
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| MG | -- 01-27-2024 @ 10:30 AM |
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After market sending unit = junk...
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| trjford8 | -- 01-28-2024 @ 6:30 AM |
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I agree with MG. That sending unit is the problem
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| Bob56 | -- 01-29-2024 @ 7:21 AM |
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Besides Flea bay is there anywhere I can by a NOS unit
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| kubes40 | -- 01-29-2024 @ 9:19 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:27 AM
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| carcrazy | -- 01-29-2024 @ 9:33 AM |
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You might have to settle for an aftermarket unit from a reputable vendor like Dennis Carpenter.
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| kubes40 | -- 01-29-2024 @ 10:34 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:28 AM
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| MG | -- 01-29-2024 @ 11:54 AM |
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Bob56 - If I were you, I certainly wouldn't hesitate in purchasing this unit on eBay > https://www.ebay.com/itm/126304687722?hash=item1d6858966a:g:TscAAOSwsJtltsns This King-Seeley sending unit is correct for your car but you'll probably have to adjust the float arm on it to make it work properly... This message was edited by MG on 1-29-24 @ 12:04 PM
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| kubes40 | -- 01-29-2024 @ 5:27 PM |
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MG, It had never occurred to me to search Jeep parts. You are 100% correct in that this unit will work fine in a Ford. Simple enough to swap the old arm to this NOS unit. And, at $115, a bargain compared to a Ford unit. Mike "Kube" Kubarth
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| MG | -- 01-29-2024 @ 7:33 PM |
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Kubes40 - I see that the sender I referenced on eBay is sold. Did you buy it? Hopefully, Bob56 got it... This message was edited by MG on 1-29-24 @ 8:37 PM
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| Bob56 | -- 01-30-2024 @ 4:07 AM |
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No I missed it
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| kubes40 | -- 01-30-2024 @ 5:45 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:28 AM
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| MG | -- 01-30-2024 @ 8:54 AM |
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Bummer! So, hopefully, are you're going to sell it to Bob56?
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| kubes40 | -- 01-30-2024 @ 6:12 PM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:28 AM
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| MG | -- 01-30-2024 @ 6:24 PM |
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You, as a gentleman, should take mercy on Bob56 and sell it to him. He probably is "desperate" for one. After all, it was Bob56s' plea that caused me to search the web for that sender...
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| Grant | -- 01-31-2024 @ 3:43 AM |
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Well said, MG. I second your motion.
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| Bob56 | -- 01-31-2024 @ 8:17 AM |
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Thanks MG. Will be on the look out for a jeep part as well
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| dean333 | -- 01-31-2024 @ 9:22 AM |
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Wow, triple the price for a friend!! TIM CARLIG
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| kubes40 | -- 01-31-2024 @ 9:43 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:29 AM
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| MG | -- 01-31-2024 @ 11:11 AM |
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"supply and demand" and greed...
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| kubes40 | -- 01-31-2024 @ 11:40 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:29 AM
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| Bob56 | -- 02-01-2024 @ 4:33 AM |
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My exact feeling as well. Had so many he sold them last year at a huge profit and then had to buy this out from under me. Karma is a Bi**h
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| kubes40 | -- 02-01-2024 @ 5:46 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:29 AM
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| Bob56 | -- 02-01-2024 @ 7:05 AM |
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Where did I say I don't deal with ebay. Most of the parts I have bought are from ebay. I never thought I would have to deal with a person like you on this forum as everybody until now has been so extremely helpful. But I guess there is one in every bunch. It would have been one thing to just screw a fellow member but then to come on this forum and boast about it then brag how you scr*w*d a "friendly acquaintance".
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| kubes40 | -- 02-01-2024 @ 8:25 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:30 AM
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| kubes40 | -- 02-01-2024 @ 8:27 AM |
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... Mike "Kube" Kubarth This message was edited by kubes40 on 2-1-24 @ 8:31 AM
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| 1942deluxe | -- 02-01-2024 @ 9:05 AM |
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Is the fuel tank original or reproduction? I know on the 41-48's an original fuel sender will not fit without modification in the reproduction (Drake)tanks.
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| Bob56 | -- 02-01-2024 @ 10:33 AM |
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To the best of my knowledge it's original
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| 37RAGTOPMAN | -- 02-01-2024 @ 11:11 AM |
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BOBS56 on the fuel gauge, I think I was right that the sender was all fault, the sender was the same from 1936 to 1955, you might bend the arm to a certain shape What if wrong with the one you took , OUT,. you never said ??? if the wire is rusted you might be able to braze a new wire onto it, if the float is NG youi can also inprovise using another cars float, as far as the cost to NOS SENDER, it is worth the cost, because it will work for may years with out problems a great saving in LABOR I have invested in many parts and stored them for many many years so I would have them to use, a old saying is better to HAVE and NOT NEED, then to NEED and NOT HAVE, my 3 cents 37RAGTOPMAN This message was edited by 37RAGTOPMAN on 2-1-24 @ 11:41 AM
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| 1942deluxe | -- 02-01-2024 @ 3:43 PM |
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Look at Ebay item (304912831469). NOS for 42-48 sedan delivery. Arm may be different but might be able to be swapped. $249 or you can make an offer.
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| MG | -- 02-01-2024 @ 8:35 PM |
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1942deluxe - That one is probably being sold by that "Kube" guy... :o)
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| Grant | -- 02-02-2024 @ 4:26 AM |
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MG, I don't think so. That NOS 21A-9275 sending unit is being offered by a reputable seller in North Carolina (99.6 % positive feedback).
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| Bob56 | -- 02-02-2024 @ 5:34 AM |
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This is the original problem. The tank is half full and the gauge reads correctly. If I step on the gas the gauge goes to 3/4 full and if I drive the car it pegs the gauge above the full mark where you can't even see the meter
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| Drbrown | -- 02-04-2024 @ 10:04 AM |
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Please let us know about your grounding of the sensor. Since the gauge reading is increasing with engine speed almost sounds like the gauge is getting feed-back from the generator system.
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| 37RAGTOPMAN | -- 02-04-2024 @ 3:02 PM |
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drbrown I am with you .... I posted that I thought the same as you, that the generator is cauing the eratic fuel gauge, [ IT ALSO could be wired incorrectly, or has frayed wires that are touching, ? a photo of under the dash would be helpful, or a simple inspection, and post that information, I see he had a after market senging unit, it might not read correctly but it should not go up and down, I mention that to the guy trying to repair the fuel gauge,. do not think he read my post, ALL TESTS should be done without the engine running anf see if the gauge reads corectly then with the engine running, to see if there is a difference my 2 cents 37Ragtopman
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| TomO | -- 02-05-2024 @ 8:43 AM |
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The after market units use a variable resister to indicate fuel level. The original King Seeley units use a current balance to indicate the fuel level. Using Ohms Law, if you increase the voltage and do not change the resistance the current will change. This will cause more current to flow in the gauge as well, increasing the reading. You should check your 3rd brush setting to make sure that you are not getting more than 7.4 volts when you rev up the engine. I like to set the 3rd brush so that with the parking lights on and the engine reved up to about 35mph, I get a slight positive indication on the amp meter on the dash. If you drive a lot at night, then I would set it with the headlights on and check the battery water level frequently. Tom
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| MG | -- 02-13-2024 @ 9:36 AM |
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Hey, Bob56, how are you coming along with your fuel sending unit problem? I'm still upset about how that "Kube" guy 'sniped' you on eBay, bought from under you, the Jeep unit I found for you on eBay...No class! ....
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| Bob56 | -- 02-14-2024 @ 4:29 AM |
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Just got back into town. Planning on working on it this weekend
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| trjford8 | -- 02-15-2024 @ 8:08 AM |
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Do you still have the original Ford sender? If not send me a private message as I may have a used original one in my used parts. This message was edited by trjford8 on 2-15-24 @ 8:11 AM
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| TomO | -- 02-16-2024 @ 10:49 AM |
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Even if you go back to the original type sending unit, check you generator out put to make sure that it is putting out the correct voltage. Tom
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| Bob56 | -- 02-18-2024 @ 5:03 AM |
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These are the two units I have. The first with the box came with the car when I bought 8 years ago. The second is what was originally in the car. I must have had this problem all along but never noticed it as I check the fuel when I initially start the car
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| MG | -- 02-20-2024 @ 11:12 AM |
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Bob, If that number on the box (87-4902) is a Ford part number, I'm not able to find it anywhere online. Was there any paperwork in the box. I'm wondering if it might be a 12 volt sender. I'd like to research that unit... This message was edited by MG on 2-20-24 @ 11:22 AM
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| Dan Duszkiewicz | -- 02-20-2024 @ 1:01 PM |
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Part numbers that have base numbers starting with 4XXX are driveline (rear axle - driveshaft) parts. So that box isn't for the sender. The correct base number for a fuel sender (6 and 12 volt) is 9275.
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| Dan Duszkiewicz | -- 02-20-2024 @ 1:21 PM |
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Bob56 please check your private messages.
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| Bob56 | -- 02-20-2024 @ 1:38 PM |
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Dan. Thanks I bought one last week and should be here Thursday
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| MG | -- 02-21-2024 @ 11:02 PM |
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Bob, Post a picture of the sender you'll be receiving Thursday...
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| Bob56 | -- 02-22-2024 @ 4:24 AM |
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This is from a 42 to 48. I tested with a multimeter and it appears to be in working order
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| JayChicago | -- 02-22-2024 @ 8:31 AM |
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Now the question, is that 42-48 arm a good length for your 36 tank? May need to shorten or bend the arm to fit your tank. I would measure the depth of your tank and draw two lines on cardboard indicating the top and bottom of your tank. Then lay the sender on your template and see if the float will hit top or bottom before the sender is able to move thru its full range of movement. This message was edited by JayChicago on 2-22-24 @ 8:33 AM
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| Dan Duszkiewicz | -- 02-22-2024 @ 9:15 AM |
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Here is a copy of the instructions sent with a Ford service fuel sender. See if yours is on the chart.
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| 51woodie | -- 02-23-2024 @ 7:46 AM |
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I salvaged a sender from a rusted out '51 Ford sedan, to replace the "jobber" unit in my '46 Super Deluxe. I didn't have the chart/info that Dan posted, so I did as Jay posted. The sender arm and float from the salvaged unit was in bad condition, so I spliced the "jobber" sender arm and float onto the arm of the salvaged KS unit, shaped the arm to get the travel needed and I now have a reliable fuel gauge.
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| Bob56 | -- 02-23-2024 @ 11:49 AM |
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Just wanted to thank everyone for help in getting this repaired and the education everyone has given me. Seems to work with the correct sender in it. I drained most of the gas out and it read empty and put 5 gallons in and it reads little above 1/4 tank. Will keep an eye on it as I use the fuel. Again Thank you
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| MG | -- 03-08-2024 @ 4:53 PM |
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Bob, Have you had to make any more adjustments to your new sending unit?
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| Bob56 | -- 03-09-2024 @ 3:08 AM |
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Other than the arm it seems to be working fine. I don't drive it much maybe 10 miles a week just to keep the oils moving. so far so good
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