SteinAir sent the OAT probe nicely wired & coiled-up to the instrument panel. I appreciate that, however, feeding the assembly throughout the fuselage was going to be a puzzle since the probe is bonded to the wiring. Alternatively, disconnecting the wiring at the D-Sub connection point was something I did not want to tackle.
I found that the probe assembly would fit through a SB-750-10 snap bushing but only if that bushing was unoccupied. So, now what? After a bit of trial & error, I managed to route the probe through the tunnel, down through & into the left control stick bell crank area & then out the side of the fuselage through the aileron pushrod hole. But it became quickly clear to me that this routing could be problematic; specifically at the pushrod exit point.
In the end I contemplated towards drilling an exit hole just forward of the pushrod area & reached out to Vans for guidance. They agreed that this was the better course of action as best practices suggest nothing should be shared with a pushrod in its dedicated opening. Adjusting for edge clearance minimums, I downsized the bushing to a SB-625-8 & drilled a 5/8” hole. Once the probe was through the new hole, I sliced the bushing on one side which allowed me to slip it over the wiring & snap it in place.
