Mostly piddling around still not feeling too good. I just had to hang the propellor on the new gearbox, very impressive size prop. The fit of the oil cooler has been a thorn in my side, the only other RV12/Viking had the oil cooler mounted upside down, and that was not acceptable to me. Fitting it inside the cowling was very tight and would require another fitting to clear it. Simply by turning the cooler around 180 degrees in its support frame, solves the problem in fine shape, the hoses can be hooked up and the airflow will be down.