Jon Diesel MarineMarine diesel and engine surveys(941) 780-1330

Terms of use

Last updated August 2026.

Information on this site

The technical information published here is general guidance about marine diesel engines and surveys. It is not a diagnosis of your engine and it is not a substitute for having the vessel inspected. Engines differ, and so does what is wrong with them.

Quotes and scope

Nothing on this website is a quote or an offer of a fixed price. Pricing and the scope of any survey or repair are agreed directly, in advance, once the vessel, engines and location are known.

Survey reports

A survey report describes the condition observed on the day of inspection, within the scope agreed. It does not warrant future performance and it does not cover components that were not accessible. Any limitation on access is recorded in the report itself.

Third party links

Where this site links to a manufacturer or another organisation, we do not control that site and are not responsible for its content.

Tell me what the engine is doing

Describe the symptom on the phone and most of the time the problem is narrowed before I arrive. Surveys are booked around your sea trial date.