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Teflon tape electrical resistance 200 1993

posted by  Gregg Shadduck on  Thu Sep 30 04:10 CST 2010
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last visit: Fri Mar 7 12:10 CST 2014
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I also don't like the idea of tape, Art, but I do think that Teflon tape PROBABLY gets torn up enough during assembling the joint to make good contact.

However, I have not verified this with trials!

(I wouldn't feel bad about using tape on a joint that is simply meant to complete a circuit, a binary yes-no; e.g. low oil-pressure sender.)

And, a bigger HOWEVER: READING the coolant temperature sensor depends on getting RESISTANCE right, and modifying (increasing) the path of resistance with Teflon tape is a no-no. You are right.

Straight-threaded fittings seal at a shoulder -- e.g. this sensor, spark plugs, oil pan drain plug, banjo fittings at fuel lines, brake bleeders -- and usually take a sealing (deforming) washer. No pipe dope, no Teflon tape. A bit of anti-seize.

Tapered fittings rely on the taper, and can take sealant, such as Teflon tape and/or pipe dope.

All of which you already know. :-)






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