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Fuel Sender Repair |
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John Cotner 
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Joined: 11 Sep. 2014 Location: New Ulm, MN Status: Offline Points: 355 |
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 Topic: Fuel Sender RepairPosted: 13 June 2021 at 2:13pm |
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The fuel sender on my '46 CJ2a started acting up the other day, jumping from full to empty and everywhere in between. I checked all of the wires and they're okay. I pulled it out of the tank to see if there was something stuck or obstructing travel but the float arm seemed to be moving smoothly. I got my hands on a new unit and it works fine. I looked on the web but couldn't any info on repairing or refurbishing old fuel senders. Does anyone know where to find info on repairing these things?
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Thanks,
John Cotner New Ulm, Minnesota |
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TERRY
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Sponsor Member Joined: 22 May 2007 Location: BOULDER COLORADO Status: Offline Points: 3400 |
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Posted: 15 June 2021 at 4:30pm |
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Uncrimp and open the wire resistor, clean it if it is intact, and clean the wiping contact, bending it toward the resistor wire.
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BOULDER 48 2A
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John Cotner
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Joined: 11 Sep. 2014 Location: New Ulm, MN Status: Offline Points: 355 |
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Posted: 15 June 2021 at 5:56pm |
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Would you use a fine brass brush to clean the contacts or something else?
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Thanks,
John Cotner New Ulm, Minnesota |
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TERRY
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Sponsor Member Joined: 22 May 2007 Location: BOULDER COLORADO Status: Offline Points: 3400 |
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Posted: 16 June 2021 at 6:11pm |
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I would lean towards spray contact cleaner or brake clean and blow dry, polish with a clean cloth--- no abrasives. Don't want a rough or pitted surface.
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BOULDER 48 2A
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John Cotner
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Joined: 11 Sep. 2014 Location: New Ulm, MN Status: Offline Points: 355 |
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Posted: 17 June 2021 at 6:43am |
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I gave the fuel sender a hard look and it appears the top and bottoms halves don't look like they were meant to come apart, and nothing looks like it can be uncrimped. Could you post a photo of what you're looking at?
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Thanks,
John Cotner New Ulm, Minnesota |
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