Scott06, Thanks for your help locating the o-ring. I went ahead and ordered it. $4.40 for the part $8.95 to ship it. Oh well, couldn’t find one locally.
I have a 1975 inline 6 165 Mercruiser that I am working on. I’ve identified the stern drive as an MC-1. Does anyone know the part number for this rubber o-ring fits in the exhaust port of the gimbal housing?