ASA and PSIA Instructor
Join Date: Apr 2000
Thanked 25 Times in 25 Posts
Rep Power: 16
I have purchased 2 boats with diesels and have not had a dedicated mechanical inspection on either. In both cases, the surveyor gave the engine a look and spent approx 2 hour on our latest boat. While I would OT discourage an inspection, I do know some things to look at based on personal experience and what I know of the mechanical inspections. For diesels, a list would include but would not be limited to:
1. Cold inspection. Any wet liquid on or under oil pan or transmission? If so, ......Double hose clamps on raw water intake lines and exhaust lines.
22. If possible, remove the heat exchanger upstream endcap and verify that there is no debris or impeller vanes blocking water flow. DO NOT do this without owner permission or without a new gasket immediately available.
This is what I can think of for now. I'm sure that there is a mechanic out there who will provide an even more detailed list. I checked Nigel Calder's Diesel book and there is nothing about inspections or survey. Too bad.
First and foremost, hard to start in cold weather...means poor compression. Only way to tell without a compression test, and the most inportant by far of potential problems.
Certified...in several regards...