R
Royce
Bob, Congratulations on your boat purchase. I've had a 76 h30 for the last 12 years. I too was faced with replacing the old yanmar engine. I was lucking in that I found a guy selling a new Vetus 23hp 3 cyl. that was he had purchased for a boat project that never happened. He had purchased the engine new 12 years ago and it was sitting in his garage wrapped in the shipping plastic all this time. The model was a m3.09 and at the time was still a current model. I bought it, ran it in the garage, changed out all the rubber hoses, water pump impeller, and installed it in the boat. It sat right on the existing engine rails and I didn't have to make any fiberglass modifications. I did have to shorten the prop shaft, but I needed a new one anyway. Also my old YSE12 was left hand rotation and I had to change the prop to a right hand one. I did all this with the boat in the water. Also the new engine was about 60 lbs lighter, a whole lot smoother, and I really like the extra power.