Not too bad a job
I just got done removing a 2GM and installing a 2GM20F. You will need to dismantle the Nav Table, although IF you are careful you can leave the top forward piece that the "desk" slides on in place. Then you just open the port and put one end a piece of 1 1/2 pipe onto a large block of wood in the cockpit put a couple of 2 x4's on edge at the forward edge of the companionway hatch opening and hang the other end of the pipe from them. This gives you a rail to lift the engine from and slide it forward . Then you just tie the end of the main halyard around the boom at a point above where the engine is, attach the main sheet to the boom next to the halyard, hook it to the engine an hoist away. Then you can swing it over the side and lower away. Then as all the instruction manuals say " Reassemble in reverse order of disassembly". It's really not a bad job, it took about an hour and a half from start to engine on the ground. If you need more info contact me off list.
