Hours on a Diesel
3200 hours is the equivelant of 192,000 miles. One engine hour is based on 60 miles. Folks that are used to gas engines are usually horrified by that many miles, but for a well maintianed diesel that isn''t that much. I have had several diesels that have gone over 10,000 hours without a rebuild. The key here is doing the proper maintenance.
Ask the owner how often he srvices the engine. If they just uses it to get on and off the dock he should be servicing it about every fifty hours. If he tells you that he services it once a year, there is a good chance it will need an overhaul pretty quick with that many hours on it. Diesels are made to run all day and then some, not for short runs. They will do it, but need to be serviced more often because of it.
I look at like this;It costs around 20 buck to buy the stuff to service my engine. If I do that an extra three or four times a year it could never add up to more than a single rebuild costs.
Very best of luck to you