lml@lancaironline.net Mailing List Archive

<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> In a message dated 12/1/0 11:01:14 PM, you wrote: <<In regards to you question about the fuel line sight gauge for the wing tanks; I have found them very useful. >> I'm trying another technique to get this sight gauge implemented. A friend of a friend works with laboratory glassware. We're going to make a small pyrex glass tube to fit through the bottom of the center panel (below the radio stack and below the throttle knobs) down near the console, one on each side. The pyrex tube will be U-shaped and run vertically for about an inch and a half, and have the ends sticking thru to the back side of the panel. Tygon tube gets hose clamped to the ends of the pyrex. The pyrex tube will be encased for protection in an aluminum C-channel with a thin rubber lining and penetrate the panel thru rubber grommets at the top and bottom of the C-channel. We'll keep the part sticking thru the panel fairly short so as not to snap it off. We'll have a little white card in the channel behind the tube for enhanced visibility. All my friend's friend has to do is bend two pyrex tubes into U shapes. The pyrex can be 5/16 OD and still have the factory-supplied Tygon fit over it. It will be a little thicker walled than the aluminum tube, of course, and the intent is to have the same inner diameter as the aluminum tubing (the 1/4 inch OD stuff going between the wing tanks and the header tank). If this thing is sturdy enough, it will be a nice clear tube and look very professional. If not, my fallback position is the Tygon tubing per the factory recommendation. I'll keep y'all posted and send a picture when I'm done. I appreciate the comments I've received. The consensus is that enough people think they're useful that I want to incorporate them. - Rob Wolf LML website: http://www.olsusa.com/Users/Mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com.