Dead Reckon Posted August 10, 2022 Report Share Posted August 10, 2022 So I'm looking for a replacement fuel level sending unit for my '85 Nissan 720 with the Z24, mine is reading about 11 ohms all the time causing the gauge to peg full even though the tank is definitely not full. Gauge goes to empty as it should if the sender is unplugged back at the tank. The only fuel level sending units I can find are on Fleabay, and of the Chinesium variety... Anyone know if these are any good? Thought about dropping the tank to try to clean the sending unit up, dunno if that'll work or if the contacts are just corroded away and it's grounding out on it's self. Here's an example: https://www.ebay.com/itm/354208140675?hash=item5278734d83:g:HCwAAOSwsopi7jRY Quote Link to comment
datzenmike Posted August 10, 2022 Report Share Posted August 10, 2022 Sender is probably stuck from gummy fuel. Take it out and try to get it to swing properly. Once loose it will swing and keep itself clean. Was the truck sitting for any amount of time? Quote Link to comment
Dead Reckon Posted August 10, 2022 Author Report Share Posted August 10, 2022 20 hours ago, datzenmike said: Was the truck sitting for any amount of time? Yeah, it's only had about 600 miles put on it since 2019, 30 of that I put on it driving it home. Prior to that I think it sat for a while more. I'm surprised at how well it runs on the questionable mix of new and who knows what vintage gas is in the tank. I've cleaned some fuel sending units before, how do the floats hold up on these? I guess if push comes to shove I could improvise a float, oh well, at least the gas tank can be drained on these! Quote Link to comment
Stoffregen Motorsports Posted August 10, 2022 Report Share Posted August 10, 2022 I clean them with Krud Kutter metal etch. Don't let it sit too long before you rinse it off though. 5 minutes tops. What is the float made out of? Plastic should be ok. Brass can get holes in them from corrosion. Cork floats...haven't seen those in decades. Quote Link to comment
Thomas Perkins Posted August 11, 2022 Report Share Posted August 11, 2022 On 8/9/2022 at 8:39 PM, Dead Reckon said: So I'm looking for a replacement fuel level sending unit for my '85 Nissan 720 with the Z24, mine is reading about 11 ohms all the time causing the gauge to peg full even though the tank is definitely not full. Gauge goes to empty as it should if the sender is unplugged back at the tank. The only fuel level sending units I can find are on Fleabay, and of the Chinesium variety... Anyone know if these are any good? Thought about dropping the tank to try to clean the sending unit up, dunno if that'll work or if the contacts are just corroded away and it's grounding out on it's self. Here's an example: https://www.ebay.com/itm/354208140675?hash=item5278734d83:g:HCwAAOSwsopi7jRY That part number does not match up and beware of Thailand parts.Also the connector will not fit ours.Part number is 25060-90W10 Quote Link to comment
datzenmike Posted August 11, 2022 Report Share Posted August 11, 2022 25060-90W10 is March '85 and on. 25060-54W01 is through Feb. '85 and these cover King Cab and 4wd. Quote Link to comment
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