440 coolant temp sensor thread sealant?

[Kris70gtx]

Hello all, I'm sure it's been asked on here before but I couldn't find it. Are you guys putting thread sealant/teflon on your coolant temp sensors? I'm replacing mine on my 440 and wanted to know what you guys think, I wouldnt think it would need any sealant. Thank you.

 

[Abomb9182]

I always use Teflon tape for that type of sensor.

 

[Ernie ingling]

Do not use any sealant sensor needs to ground. Designed to not leak that said do not over tighten

 

[Jerry Hall]

I've never had any problem with grounding and have always used teflon tape.

 

[steve340]

I like to try and make sure they get ground so these days I use Loctite Flange Sealant 515.
I used to use Teflon tape for many years and did not have any problems but the flange sealant looks cleaner as opposed to the white tape.

 

[R413]

Dry is fine, brass pipe threads. Do you ever see these leaking on old untouched cars? Nope.
Take apart an untouched car, ever see any sealer on there? Nope.

 

[Kris70gtx]

Yeah I didnt see any sealer on mine when I took the old one out. Thanks for the help guys, have a good Sunday.

 

[493 Mike]

Having been a plumber for 30 years, I like dope on pipe threads. I prefer any paste type.
Mike