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RV-7A Tip-up QB build project
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Date:  3-8-2012
Number of Hours:  11.00
Manual Reference:  
Brief Description:  Final installation of the fuel system lines and pu

With the pump and selector valve secured perfectly in place I went about bending and forming the lines to the selector from the left and right 'wing tanks' in a thick wire to serve as 'templates' for the actual lines in 3/8 tubing. with the necessary bends and angles and flares determined I formed the left and right lines in the tubing on the workbench, starting at the selector end of each line.
With the lines prebent at the selctor ends I climbed in and having placed grommets at the appropriate holes in the bulkheads and gear webs, I started feeding the partly rollled tubing from the first hole at the selector and through towards the cabin wall, straightening as I went I used spring benders to facilitate gradual bends (wide radius bends) through the webbing and out the cabin wall skins. Once I was happy with the routing I pulled the line from the wall end until the bend in the selector end was in place to be unioned with the selector according to Vans drawings. Once the couplings were screwed and safetied I made some final tweaks to the lines by straightnening by hand between the bulkheads and perfecting the bend between the webbing and wall. I placed rubber grommets on the outside end of each line and pushed it in place in the cabin skin, thereby centering the tubing in exiting hole. First the right then the left, the results were pretty good! The protruding ends were trimmed and a bottle placed over each end to protect it from being bent or kinked.
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