5_litre_eater

I'm in the process of installing a few gauges in my car, one of which is a trans temp gauge. I have the sending unit installed with a little teflon tape on the threads, since that's what the Autometer instructions said to do. I've just read a few threads on different forums stating teflon tape should never be used. Should I removed the teflon tape and use high temp RTV instead?

jrpimp00

iTrader: (17)

I used it and had no problem for the 4 years it was in.

mrvedit

The concern is tiny bits of tape coming loose. I don't use teflon tape in the fuel system because even the tiniest bit would clog an injector. Don't think a tiny bit would hurt the trans; be careful not to let any tape past the threads which might cause a bigger piece to come loose and clog a valve.
Where and how are you mounting the temp sensor?

Randolph Ziskey

iTrader: (13)

Imma use the teflon on mine. Fuel pressure gauge. Just not going to let it pass the threads.

5_litre_eater

Thanks for the advice, guys.

I mounted the sensor in the test port.

Cajun ELESS-ONE

im about to install a trans temp and fuel pressure gauge. would rtv be a better option like op asked or just make sure the tape doesnt go to far into the threads???

Rodney WS6

I used teflon tape on my trans temp sending unit, trans cooler fittings, and fuel rail fittings. All are great with no leaks.

mrvedit

I use ARP thread sealer, but there may be better products for higher pressure:
http://www.permatex.com/documents/TD...tive/59235.pdf

PBA

If you install the Teflon tape correctly, you should never have a problem with the tape getting into anything. It works very well. I have been using it when it used to cost over $10.00 for the little roll of it.

01ssreda4

iTrader: (96)

^^yep. Perfectly fine if you apply it correctly.