Continued making the fuel pump tubing today, but first I had to make the threaded spacers for the fuel valve, in order to line up the tubes.
Here they are cut to length:
![Fuselage 539 [800x]](http://www.rv-7.dk/wp-content/Fuselage-539-800x-400x300.jpg)
After drilling and tapping threads, I installed the fuel valve to the valve plate.
![Fuselage 540 [800x]](http://www.rv-7.dk/wp-content/Fuselage-540-800x-400x300.jpg)
Then I installed the fuel valve covers
![Fuselage 542 [800x]](http://www.rv-7.dk/wp-content/Fuselage-542-800x-400x300.jpg)
Now I was able to determine the length of the feed line…
![Fuselage 543 [800x]](http://www.rv-7.dk/wp-content/Fuselage-543-800x-400x300.jpg)
Length marked to the center of the fuel valve outlet:
![Fuselage 545 [800x]](http://www.rv-7.dk/wp-content/Fuselage-545-800x-400x533.jpg)
To calculate where to start the bend, I made a bend on another piece of tube, and measure the distance from the bend starting point to the finished bend centreline:
![Fuselage 546 [800x]](http://www.rv-7.dk/wp-content/Fuselage-546-800x-400x300.jpg)
Then I marked the offset on the feed line tube.
![Fuselage 548 [800x]](http://www.rv-7.dk/wp-content/Fuselage-548-800x-400x300.jpg)
To make the pump return tube (top one in the photo), I fitted the fuel valve and pump brackets in the aircraft:
![Fuselage 551 [800x]](http://www.rv-7.dk/wp-content/Fuselage-551-800x-400x300.jpg)
Final photo with the covers installed.
![Fuselage 550 [800x]](http://www.rv-7.dk/wp-content/Fuselage-550-800x-400x300.jpg)
Next is the tubes that go from the valve to fuel tanks. These are tricky ones…
![Fuselage 541 [800x]](http://www.rv-7.dk/wp-content/Fuselage-541-800x-400x300.jpg)
![Fuselage 544 [800x]](http://www.rv-7.dk/wp-content/Fuselage-544-800x-400x300.jpg)
![Fuselage 547 [800x]](http://www.rv-7.dk/wp-content/Fuselage-547-800x-400x300.jpg)
![Fuselage 549 [800x]](http://www.rv-7.dk/wp-content/Fuselage-549-800x-400x300.jpg)
Leave a Reply