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I hear that potentiometer-based fuel senders can be revitalized by soaking
them in a solvent to remove accumulated gunk. I'm wondering if they can be sprayed in place by running the tank dry and using a tuner cleaner (I think it's mostly dichlorofluoroethane). Will that stuff destroy fuel bladders or sealent? -- Ben Jackson http://www.ben.com/ |
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![]() Ben Jackson wrote: I hear that potentiometer-based fuel senders can be revitalized by soaking them in a solvent to remove accumulated gunk. I'm wondering if they can be sprayed in place by running the tank dry and using a tuner cleaner (I think it's mostly dichlorofluoroethane). Will that stuff destroy fuel bladders or sealent? Ben, the problem that these things develop is that the phospor-bronze wiper contact wears down to the point that it looses contact with the wire-wound resistance card at certain points in the arc of travel. No amount of tuner cleaner will fix that... They have to come out of the tank. As soon as you can visualize the little wiper sliding on the resistance wire the problem will become painfully obvious. You can use an Ohmmeter to measure the resistance while you are moving the float. AFAIR, the resistance varies from 0 to ~70 Ohms. If at any point in the swing you read "infinity", you have found your problem spot(s) There is an outfit in Lock Haven that can o/h them for you. Be sure to use new gaskets when you reinstall them... MikeM Skylane 1MM |
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