Hi all,

Im hooking up my fuel tank and I have 2 questions. One - The cap the is screwed on the tank --- do you seal that with silicone or anything?
Two - The silicone fuel lines---- do they get any kind of clamp or just slide on?

thanks, Joe

When you put the bung in the tank, the center screw is to be tightened until it is secure and flush with the tank. The screw expands the bung as it tightens and seals it completely if you get it tight enough. The silicone tubing just needs to be slid on the copper pipes and they won't come off granted you have at leat 1/2"to 3/4" to go on the pipe. Hope this helped.

Gibbs

Thanks NCIS... any help is greatly appreciated!

Joe, The cap / rubber stopper can just be used as is, sometimes I'll coat it with
some light grease etc. just to ease it into the tank. As you tighten the center screw
it will squeeze the rubber stopper to make the seal on the tank and tubing. I have
never had one leak yet. It's a good idea to use tubing clamps or twist some wire
on the fittings/tubing on the inside of the tank so they stay on, I have done it with
and without with no problems to date..
The only place I use silicone is on the outside of the stopper cap/tamk and the
firewall to seal and hold the frt. of the tk.

The above advice is right on. Screw down the stopper will seal it up. Make sure you make it part of your regular maintenance to check your tank stopper to ensure it stays sealed. Tanks like this can and do vibrate and over time the screw in the stopper will loosen up, which will cause your tank to leak fuel into your fuselage. I usually check my tanks at least twice a flying season.

Hope this helps

Ken

Thanks all for you replys

Use some fine sandpaper in a twisting motion about the last 1/2 inch on the brass tube and make sure the ends of the tube are not sharp.Will stay on forever if you are using the correct size fuel line.