Monday July 10th, 2006|
AFP Pump Installation
Ok, it's time to get the high pressure fuel pump for the fuel injected engine wired...but before I wire it I suppose I should...hmm..maybe install it? Anyway...I spent quite a while in the fuselage getting this thing drilled. It would have been easier without all the panel and stuff in there, but in reality it wasn't as bad as I thought. [sidenote: boy..my workbenches are really taking a beating. A little epoxy resin+mico here...a little stray primer there..it's all part of the experience).
By far the most complicated part of this fuel pump assembly is making the funky 180 degree bends. My bender is awesome and I really like it...but it only makes 90 degree bends. I like this one over the traditional ones because you simply insert the tube like so then slide the arm around the radius of the bender. The grooves in the bender help ensure that the tube will not flatten. I bent one tube perfectly, but then I couldn't get the fittings on far enough to get the tubing on my fluting tool. Big chicken and egg problem here, and the only solution I see is making the tubing larger than it needs to be or adding various AN fittings in there, which I obviously don't want to do because it introduces more points for potential leaks. Hmm...I may need to borrow a different bender capable of 180 degree bends.