Here we go..... Replaced ball gears about three weeks ago, everything went together fine, Had boat out sat and sun and seem to have another problem. It is a 1985 sbc 305 with an omc sterndrive, Above 3000 rpms, the is a sudden jerk/thump that you can feel in the boat. It seems to stop below 3000 rpms. Please help anyone else experience this?
Thanks george
Thanks george