Another issue is on the Continentals the oil door is in the high pressure upper cowl area, but on the Lycomings it's behind the baffles.  My original latch mechanism was a single latch in the center.  It fit perfectly on the ground but when the cowl was pressurized in flight, the oil door twisted and created a large leak in the upper cowl.  That's why I replaced it with a full-length hinge to keep the door closed tight.

 

Mike Easley

Colorado Springs

 

PS Maybe there's a way to install an auto power door lock mechanism, "chirp-chirp" and the oil door opens!  (I guess you'd need a horn too)