Yanmar replacement is expensive
I'm not the expert, so I strongly recommend that you search the archives. My memory is that a Yanmar will drop right in, but a new diesel will be expensive.But I think the Renault will drive the boat with the standard prop. I'd have a real diesel mechanic have a look at the Renault and make sure it is running right. If it is, then you'll probably be OK. A new prop is another project where you will want to find a supplier with knowledge to help with the selection. It's easy to pick the wrong pitch, and make the problem worse.DavidLady Lillie'77 h27