I already have my firewall and ply frame installed in the fuse. Like Vampire, I'm mounting an OS 160 in the RB. Back of spinner plate is about 1/4" out from front of cowl.
Question: Any way to slightly change the down thrust angle at this point....maybe a washer between the mount and firewall on the lower side to reduce the down thrust???
Motor lined up great with cowl after moving mounting hole location on right side by approx .100.
I don't know if it's just me, but as I spin the cowl on the fuse, it seems to line up with more even clearance to the Spinner back plate at one point better than others.