Firewall work

Much of the past several work sessions has been work on the firewall.  I think I already mentioned it but I want to have as many nutplates and doublers installed as possible while I have access to both sides easily.

I used my CNC to cut out a battery box to mount on the firewall.  The RV-10 has its main battery in the tail but I wanted a second battery as a backup.  I made the battery box a little extra big so I could put insulation/padding around the perimeter to protect the battery from radiated heat.  

Test fitting many of the components with the engine mount on.

A couple of the doublers I am installing.  The top one is for the Air/Oil separator and the one down on the right is for the battery box.

This is a picture with all of the parts I have been working on circled in blue.  The red circles are tasks yet to be performed.  I'm not sure what I am going to do with the red circles...yet.

And the last item I am making mounting provisions for is the Fuel Pressure regulator.  This location should allow for an easy transition from the fuel block mounted on top of the engine case and the return fitting that penetrates the firewall just below the right heater valve.