Lt1Porsche

iTrader: (6)

What do you use to seal your lines. My instructions said either to use teflon paste or just install dry and make sure they are torqued properly. Right now i have the connections dry but have not finished. Whats your opinion?

subarubill96

iTrader: (9)

use teflon paste (and only paste, tape can come off and clog lines) on all pipe fittings also refered to as NPT fittings, all AN fittings are a 37* degree flare and should be self sealing. i always use paste on all NPT fittings, but thats more out of habit considering i do some gas piping at work so im used to doping pipes up.

3fingas

iTrader: (16)

^^^+1. Be conservative with the paste though, It does'nt need much.

myfast70

iTrader: (38)

You can always use red loc-tite. That's what NX supplies with their kit. I've used it on all of my fittings with great luck. Haven't had any issues removing any fittings that have been installed for some tome.


edit:
What i meant by the above was that I use sealant on the NPT portion of the threads. I have never used any type of sealant on the flared portions of the fittings as that would compromise the sealing abilities.

Randy WS6

iTrader: (69)

I don't use any sealant from the line to the fitting because the lines are a AN-3 or 4 or bigger. The (AN-) means Army-Navy a high pressure tapered seal and any sealant on the threads will no do a thing for the leak ,Now if it the fitting that goes to like a solenoid or a pipe tapered thread then yes you need some kind of teflon past or equivalent.

subarubill96

iTrader: (9)

It is a US military-derived specification stemming from a joint standard agreed upon by the Air Force and Navy, hence AN- from wikipedia

there are two kinds that you will run into commonly, 45* and 37*, 37* is all you will see in nitrous systems where 45* is more common in like oil burners and i believe brake lines. just as long as you use the same flaring tool for the whole system you should have no leaks

Speed Density

iTrader: (38)

And always use the paste not the tape. That stuff can get dragged of the thread and clogg the lines.