fuel sending unit replacement problems

[hatched91]

okay, here's the story. i bought a used fuel sending unit. the fuel sending unit that i purchased used, was not disconnected from the fuel pump, the wires were cut. i decided to go ahead and cut my wires and splice the negative to the negative and positive to the positive. i used butt-connectors with plastic covering. now, after doing it i'm afraid to put it back together. i do not want the rubber to spark or the two wires to touch, what should i do?

[Alexlind123]

lots of electrical tape?

[BillionPa]

electrical tape + gasoline = bad.

if you are using gas without ethanol in it you shouldnt have any problems, but ethanol makes it conductive so i dunno there.

i would fill the little plastic thing with some kind of permatex silicone sealant thats solvent resistant.

[Alexlind123]

Heat-shrink tubing.

[Rus]

Solder the wires and use heatshrink tubing. That would be the most secure way of making the connections.

[hatched91]

i have heatshrink ready to be slid over the butt connectors. will the gas just eat up the heatshrink?

[Kobe Diesel]

wire insulation and heat shrink are available for use in oil/gas applications.

[genphreak]

i have heatshrink ready to be slid over the butt connectors. will the gas just eat up the heatshrink?

Strip, solder and shrink. Don't bodge it, this is not a place you want to mess. Even if you get a dodgey gauge (or just the perception of one) you'll always be blaming corrosion in your connector. Do it properly and be done with it is my advice. Nuff said.

[hatched91]

where would i obtian some gas proof heat shrink? i have some already as you can see in the picture that is pulled up above the connection, but i do not believe it is gas-resistance or gas proof.

[Dr. evil]

Butt splices are the only type of connector approved for aviation (witch are as strong or stronger that the wire). solder has a tendency to brake, if it was me i would call it good at that.

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