Mike - That's the dilemma. You might need something stronger than coffee - LOL...
It is definitely a personal decision but my rules of thumb for "repower" include
- New engine will have higher HP - needed for power take off, clawing off lee shores etc
- Old engine parts
are a rare metal - unobtanium (especially in remote
- Old engine block or head
or crankshaft or other key part is "trashed" and you need to source a major part
- Old engine is gasoline
- Old engine has a reputation of unreliability
- Some other major gripe about the old engine or some fantastic feature about the new engine
In regards to the accessories on the old engine - starter, injection pump, alternator
. These are in some way "maintenance" items.
A properly overhauled "old" engine that has a good parts supply can be more reliable than an engine that is years younger.
The final thought is the boat ownership
horizon - If I invest $8,000 in an overhaul
will I keep the boat long enough to enjoy the return on investment. A $15k boat (like mine) isn't going to be worth $20k when I get my engine done (see my other thread about MD2010) - But I am keeping Relax Lah for some time to come and the utility of the diesel
engine is very satisfying to me so the numbers make sense (at least to me - LOL)
Drink more coffee, spike with whiskey, get more opinions - enjoy whatever you decide to do!