used marine engines

I have just put a new beta in. Old vetus was ok but from 1983 and I had done a goodly bit of work on it. It remained an old engine. The beta is lighter, nicer to look at and - now it has been paid for - pleased I did it. I have more confidence that things won’t go wrong. I had thought of selling the boat a couple of years ago but the old engine did not help sell it.
 
"Overhauled" = steam-cleaned and sprayed with a rattle-can.
"Refurbished" - read what the've actually done. - it's usually beggar-all. Maybe only set the tappets or had the head off. Seldom ever anything examined, let alone fixed or even cleaned like injectors (essential), metering units, fuel pumps, cam and cankshafts..."Refurbished" is a very woolly and imprecise description.
Ex lifeboat whoompah-whoompah engines with "only" 1000 hrs have spent their entire lives running stone cold, fifteen minutes at a time per fortnight for forty years. Perhaps thay can take that. Who knows? How much of a Diesel's wear happens in the first 5 minutes of running...?

Be real careful buying a second-hand engine, you have absolutely no way of knowing what it is like inside unless you know its provenance. Think - why did the previous owner remove this immacculate beautifully-running low-hours engine...? There may well be good reasons, but personally I'd want to know that- for a fact -before I spent money on buying it.

I don't mean to knock good dealers selling second-hand engines, just to put a bit of caution and perspective into those considering buying.
 
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When you talk to Sean at Marine Enterprises, ask how many engines of the type he's supplied and about the reasons for the returns he's had.

I found the answers reassuring enough.
 
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