Tuesday, February 1, 2022

Header tank and fuel lines

A mounting bracket for the header tank was previously modified with a notch to allow it to be lowered.  This notch needed to widened to provide better clearance from the adjacent tubes, and this was done with a cutoff wheel and grinder.  

Notch widened on mounting bracket

Once complete, the notch was great, but the beautiful shiny black finish was messed up as expected.  So the part was sanded, then touched up with primer and some more shiny paint to bring it back to its former glory.  After painting and drying, the header tank was reinstalled with Adel clamps.

Repainted header tank reinstalled

Additional work was done on the fuel lines.  A 3/8 inch aluminum fuel line was carefully bent in a few spots using a pipe bender, and installed on the right side of the plane, running from the fuel cutoff switch to the header tank.  A 1/2" wide Adel clamp spacer was fabricated and installed in one tricky spot to ensure the fuel line was positioned correctly as it passed through an opening under the rudder cable.  We will be using flexible fuel hose for connections to the the rigid fuel line to account for vibrations. Hours: 15

3/8" fuel line installed

Fuel line installation

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