I have to replace a fuel sump fitting sometime in the near future. I have the new one on hand but the old one has quit dripping for the time being. I have 2 questions for those of you with experience in replacing these.
#1. It doesn't look like there's a place for a "backing wrench" to help support the flange that the sump fitting is screwed into while you'e torquing on the old fitting to remove it - or tightening the new fitting in for that matter. In searching the posts, I see where one person attributed his leaky fitting flange to having to remove a sump fitting multiple times - causing a leak betweent the flange and the tank skin. I suppose I could use a very small pipe wrench that I sometimes use for jobs like this but I really don't want to wreck the paint or scratch the metal tank flange. The mini-pipe wrench might also be too thick to get between the sump fitting and the flange. The flange looks like it is attached to the tank with plenty of rivets, but is some kind of backing wrench still a good idea?
#2. Is it OK to use some teflon tape on the threads of the new fitting or should I be using nothing at all or another product as a thread lubricant/sealant when installing the new fitting?
Thanks for the information & help.
#1. It doesn't look like there's a place for a "backing wrench" to help support the flange that the sump fitting is screwed into while you'e torquing on the old fitting to remove it - or tightening the new fitting in for that matter. In searching the posts, I see where one person attributed his leaky fitting flange to having to remove a sump fitting multiple times - causing a leak betweent the flange and the tank skin. I suppose I could use a very small pipe wrench that I sometimes use for jobs like this but I really don't want to wreck the paint or scratch the metal tank flange. The mini-pipe wrench might also be too thick to get between the sump fitting and the flange. The flange looks like it is attached to the tank with plenty of rivets, but is some kind of backing wrench still a good idea?
#2. Is it OK to use some teflon tape on the threads of the new fitting or should I be using nothing at all or another product as a thread lubricant/sealant when installing the new fitting?
Thanks for the information & help.