Today Ken Laundry called me to discuss the oil heat system.  He was questioning the flow of the oil and the external vernitherm valve.   After opening my own website and reviewing the piping layout I realized that I had piped pPod wrong….  Oops!    It was piped where the hottest oil would first flow through the cabin then the external cooler, instead of the external oil cooler and THEN the cabin.   This would result in much hotter cabin heater temperatures.   It would have worked fine as piped but the goal is to keep the cabin heater as constant and as cool a temperature as possible.

After verifying mistake in the shop, I commenced to re-pipe the oil outlet of the engine.   Fortunately, it only required some piping which I had on hand and most of my work day.    Since it was I who  messed up I would never charge my customer for the cost of the rework.     The  import thing is that the system is properly installed. 

I spent a hour or two glassing  the back side of the NACA duct.    Not a great day, but it was successful on all accounts…..

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