Oxide
Member
I have read various places that drilling a hole or cutting slot in the top of the fuel tank filler neck will allow you to much more quickly pack the tank to the top. I read on one of the MT forums that a guy used a Dremel grinding wheel to cut a small slot at the very top of the neck, I think I will use this method but wanted to ask if anyone has had first-hand experience with this or another method. It seems to me if I put a small bit of shop rag in the neck I can keep stuff from falling in the tank and if I cut into the rotation direction all the chips will go on the rag and not the tank. Probably best to take the tank off to remove the fuel pump so I can make sure all the chips are out. Thoughts?
Also does anyone know why there are two vent lines? I found the one with a white paint ring goes to the gas cap vent and the other empties into the top of the tank.
For reference, if you haven't looked into this before...
I slowly packed the tank today in the garage to see at what point the gas would come out of the vent and to my surprise it never did. I filled it to within 3/8ths of an inch of the top - so much that when I closed the lid it pushed some gas out. It never came out of the vent line. I got about 3/4 of a gallon extra from the bottom of the neck to the top. I then blew a small bit of shop air through the bottom of the vent line and heard it hiss, not bubble, at the neck. So I know wherever the vent opening is it at the very, very top of the tank.
Also does anyone know why there are two vent lines? I found the one with a white paint ring goes to the gas cap vent and the other empties into the top of the tank.
For reference, if you haven't looked into this before...
I slowly packed the tank today in the garage to see at what point the gas would come out of the vent and to my surprise it never did. I filled it to within 3/8ths of an inch of the top - so much that when I closed the lid it pushed some gas out. It never came out of the vent line. I got about 3/4 of a gallon extra from the bottom of the neck to the top. I then blew a small bit of shop air through the bottom of the vent line and heard it hiss, not bubble, at the neck. So I know wherever the vent opening is it at the very, very top of the tank.