Originally Posted By amxautox
Are you sure it's a TAPERED pipe thread, or maybe a STRAIGHT pipe thread. Same for the fittings.


This is the problem, it is not the sealer.

White Teflon tape should NEVER be used around fuel systems because when you take it apart it is near impossible to clean out all the little pieces.

Inverted flare fittings like on 6 pak fuel lines should never have any kind of sealer on the them, especially not teflon tape! runaway


You should use WD 40 on them that allows you to get them tight and leak free.