Hello. My boat currently has a Universal M35B Diesel engine. The cam shaft that drives the raw water pump broke. I have been quoted a rather steep price to repair. Was thinking about replacing with a rebuilt 3GM30F Yanmar. I am not an engine expert. Does anyone has any insight to this idea? Anything that I need to consider or think about. I realize that the engine will have to fit and probably have new mounts installed? Any help is greatly appreciated. Fair winds.