There was extensive engine work ($5k worth) was done 3 years ago right before we bought the boat and I believe this involved the after cooler and inspection of the heat exchanger as it overheated at a sea trial causing the sale to fall through for another purchaser. Unfortunately I cannot locate the records of work completed by as it was a difficult time for the previous owner.
I purchased soon thereafter and everything was given a clean bill of health after detailed inspection and engine test. That said, I am going to have them look at things as see what needs to be addressed.
Appreciate the input on what to look for.