Tonight I installed the baggage floors, final sized some nutplate holes, and then clecoed the floors to the substructure. before I started, I spent time carefully cleaning out the under-floor area. Using a damp cloth I wiped all the surfaces, then vacuumed everything with a brush-head fitting.
The next step is to rivet these floors down using a variety of rivets. I’ll be making good use of the pneumatic pulled-rivet squeezer, along with my hand squeezer, and rivet gun.
I was doing some reading ahead and studying some other build logs today. I was trying to figure out if I should do anything extra before I permanently install the baggage floors.
I replaced a pop rivet that had been set poorly while joining the fuselage. There are only a couple of them, and one had gone in on an angle, so I removed and replaced.
Next I noticed that some builders installed additional adel clamps next to the fuel pump to hold the wiring bundles securely. The problem is, there are no nutplates installed, so people struggled with nuts and bolts. I saved that pain by installing some nutplates on the fuel pump mount. Interestingly, the holes for a nutplate are already there, and the Quickbuild kit even has dimpled rivet holes. So I installed some nutplates for future use. Access is super tight, but I was able to get my hand squeezer in there to set the rivets. I used K1000-08d nutplates
Tonight I just had a few minutes, and managed to complete a couple of steps installing nutplates on the baggage floors. This was very straightforward, nothing interesting to report.
Today I primed all of the baggage area parts. This included the floors and side panels, and flap motor bracket.
For some reason the paint job was not as good as I had hoped. I still need to figure out how to optimize the spray gun to get consistently good finishes. My guess is that I’ve not got the right ratio of paint to air, and that I’m blowing too little paint. The finish is rough, like a fine sand paper, which is possibly caused by paint particles that are already dry, sticking to the part. It’s not terrible, and it’s just primer, but I will soon be painting the cockpit, and I want it to look good.
Today I dimpled and countersunk the parts needed for completing the baggage area. Most of the work was dimpling the floors, but some countersinking was needed in a couple of places.
Dimpling was easy enough, although I made a mistake and dimpled the 4 CS-4 rivet holes using my regular #30 dimple dies with 120 degree dimples. I then realized my mistake and redid them with my 100 degree dimples dies. Not great, but it will be ok. I correctly dimpled the corresponding rib holes, after I carefully measured to make sure I identified the correct holes.
Today I torqued up all the bolts on the aileron, and lock nuts on the aileron pushrods. The lock nuts on the pushrods use thin jam nuts, so I referred to AC43 page 7-9 table 7-1 and used the 320 nut values. For the short pushrod this was 40, and the longer one, 100 inch pounds.
I applied torque seal on all the nuts I final torqued.
I also took the opportunity to apply touch up paint to the pushrods, painting over the ends of the aluminum rivets in the shorter pushrod.
Tonight I reinstalled the NPT fittings into the wing tank using Loctite 565. I also reinstalled the fuel filter and pump, securing the NPT threaded fitting with Loctite 565. I completed the torquing of the flexible fuel line at the pump end, leaving the firewall fitting end finger tight. Once I have installed the elbow fitting onto the firewall, I’ll torque that end. I torqued the nuts on the outboard elbow fittings, setting those to 120 inch pounds, after finding that value on VAF. Then I installed the fuel line between the selector valve and the pump, and final torquing those fittings.
I also final torqued the bolts on the aileron torque tubes in the wing root area.
Tonight I secured the fuel lines between the wing root and fuel selector valve.
I installed and torqued the bolts holding the plastic fuel line clips.
I also made a realization that I have used the wrong product on the NPT fittings; fuel filter, fuel strainers, and fuel tank drains and plugs. To address the issues, I removed all the fittings and cleaned all the threads with acetone to remove the fuel lube I had mistakenly used. I have ordered some Loctite 565 which I will use in it’s place.
Tonight I installed the fuel selector valve.
The valve outlets need to be oriented correctly, then screwed down using Loctite 648, according to Andair’s directions.
With that done, I installed the value into the cockpit, and then torqued up the flared fittings on the aft end of the valve.
Today I riveted the j-channel to the bottom wing skin on the right wing.