I use a diesel to repower my 77-25
Hi Patrick;Let me add my two cents and it may help. I have a 77-O’Day 25-fixed keel, tall rig and it had a 10HP Atomic 2 Gas inboard. I replaced the head gasket the started of last season and a month before I pulled it out in October it lost a Rod through oil pan. Being a 1977 I know it wasn’t worth fixing. After giving it a lot of thought and especially after watching other smaller sailboat using outboards and having a heck of a time dealing with weather and motors coming out of the water, I decide to install a 13HP Vetus Diesel. Because the diesel was 2 ½” wider I had to make some minor alterations to the excising fiberglass base that was original build by O’Day. Once I got Engine in the boat itself, it was relatively easier. The cost was about twice as much as a new outboard, but I personnel feel that the diesel is more reliable and a lot easier to motor with, also no reaching over the back of the boat to lower and raise and maybe more importantly I have a great charging system.