Hi, and welcome.
I'm in pretty much the same boat
and have given this quite a lot of thought.
I finally concluded that they'd have to tear this sailboat out of my cold dead hands before I'd sell it.
By that time, resale would be the last of my issues, and my family
would take care of those little details. My only issue these days is to assure that they are familiar with all the documentation
and original manuals
that I've saved. Alternatively, I could just burn a CD with all of them, since I have just about everything digital, and I've been scanning my engine logs
into PDFs for the past 18 years in additional to the originals on the boat.
That's just my view after going through similar thoughts as you may have.
As far as repowering:
1. Why? If it's still working fine, what do you have to gain from doing it? If it's only for resale, the incredibly large numbers of posts about doing so almost ALL conclude that the cost to do so NEVER is recovered. If it's not for $$, then it has to be for reliability
, 'cuz no sailor in his right mind would do it for fun, right?
So, if it's for reliability
, then do it right away so YOU can get the benefit. As you most likely already know, diesels LIKE TO and are meant to be run.
2. Is yours raw water
cooled? If you change to a freshwater cooled can you fit a water heater
? THAT would increase the resale value.
3. Most all repower
threads include and promote BETA. But anything different than what you have is going to include exhaust
, engine panel, etc., etc.........
My boat is now 30 years old, I've had her from a single
meticulous owner for the past 18. We service
and maintain regularly and use her a lot. Sound familiar?
Good luck. Sorry if I overdid the Philosophy 101.