Building log

16-Nov-2009
Alternate air
Catégorie: Engine : Firewall forward

I found a thread on VAF about the installation of the threaded rod. This is a copy of the explanation, the important thing being the position of the thread of the bolt relative to the lever.



So I turned the bolt around on the mixture lever.



I then drilled the firewall for the penetration of the alternate door actuation cable. The hole is covered with a stainless steel shield I fabricated. I took a fraction of the time it took last time to produce the shield.



I then installed the cable on the filter air box. The picture shows the alternate air door closed.



An this is the door in the open position, which allows non filtered air to enter the engine in case the sccop or the filter gets blocked.
Once open, the door can only be closed after landng only.



I then dicide to work on the cabin side of the engine controls installation. Befor that I noticed that the forward fairing can no lay flat due to an interference qith one of the fuel pump tubings (the large tubing opposite the nutplate). Some more work for later.



I also drilled the holes in the small forward fairing.
One can then see that all the cables will have to be installed from the panel through all the holes to the engine, as the knobs are larger than all the holes I drilled.




Working time on this subpart
Today :  3h (Total : 169h)

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