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Jim, Here is another example, I went straight from the header tank through the panel and back. This is Bing tubing from Spruce. Its very tuff stuff. If you look hard you can see the thick scribbly black line toward the bottom, it switches to a fine straight line with no fuel. The angle is wrong in this pic. The restrictor is in the bottom fitting on the tank. The holes in the panel are done like the plans call out for the wing tanks sight gauge.
Steve Alderman N25SA 360
-----Original Message-----
From: steve <n5276j@aol.com>
To: lml <lml@lancaironline.net>
Sent: Sat, Aug 10, 2013 6:58 am
Subject: [LML] Re: Header Tank
Bill, Jim
Nice job, I love the sight gauge in mine. I did it a little different but wanted to add some extras. If you put white tape on the back with a black line running down the middle the length of the tube it will be high lighted by the fuel making it easier to see the level. Also I put a restrictor in the bottom line which slows down the bounce of the fuel level and slow the flow should there be a leak.. I can safely run down to 2-3 gals of fuel.
I'll get a pic posted.
Steve Alderman N25SA 360
-----Original Message-----
From: Bill Harrelson < n5zq@verizon.net>
To: lml < lml@lancaironline.net>
Sent: Fri, Aug 9, 2013 10:02 pm
Subject: [LML] Re: Header Tank
Jim,
Here are photos of the sight gauge on the 320 and the IV. Basically done the
same. On the 320 I covered the AN842 with micro and shaped it. On the IV I
left it exposed. Actually, I like the exposed version better.
Bill Harrelson
N5ZQ 320 2,150 hrs
N6ZQ IV 350 hrs
Thanks Bill. Any pictures?
From Jim Collins iPad
On Aug 6, 2013, at 11:42 AM, "Bill Harrelson" <n5zq@verizon.net> wrote:
> Jim,
>
> A sight gauge is an excellent accompaniment to a header tank. There are,
> of course, many ways to fabricate the gauge. My choice is to use clear PVC
> tubing (Spruce p/n 03-54100). You tap the ends to accept AN842 90 degree
> fittings. Drill two holes in the panel to accept the hose end of the 842s.
> Insert rubber grommets in the holes. push the fittings through the
> grommets. Put a hose clamp over the hose on the back side of the panel
> which will secure the hose to the fitting as well as hold the sight gauge
> to the panel. On our IV we also put a 3 sided square channel around the
> tube for protection from accidental bumps.
>
> Bill Harrelson
> N5ZQ 320 2,150 hrs
> N6ZQ IV 350 hrs
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