Quote:
Originally Posted by manyboats
As the previous post implies something is probably wrong. It's not likely they designed it wrong.
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In my case, the boat had been repowered and the Yanmar was taller than the original Perkins. I had decided to change the engine mounts due to age, and discovered the rear mounts were completely bottomed out and had been adjusted all the way down. When I disconnected the shaft coupler, the shaft dropped almost an inch, which meant it had been horribly out of alignment for a long time. In order to properly align the shaft, I modified the engine beds and mounts to lower the rear of the engine. This, in turn, raised the front of the engine somewhat. The lifting ring now contacted the hatch when the engine shuddered to a stop or when shifting in or out of gear. Removing the lifting ring and adding a thicker gasket solved my problem, and the shaft is now properly aligned.
