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Detroit Diesel 2-stroke diesel

The published record on this model and what owners report, with the questions worth asking while a boat is still a listing. This page covers the model. Every boat still needs its own homework.

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How to read the tags on this page. CLAIMstated by one source, not yet confirmed QUESTIONopen, and settled by looking at the boat itself Sources are linked where published.

Engine & mechanical

CLAIM
Rugged but noisy 2-stroke reputation Older Detroit Diesel 2-stroke engines (the 'screamin' jimmys') are widely reported as very rugged and reliable, but can be very noisy depending on the boat and exhaust design. A big part of the noise comes from the mechanical blower the 2-stroke uses to feed it air. Applies to any boat fitted with these engines. Assess noise level on this specific hull/exhaust setup. src: Owners discussing diesel engine options

Service & support

QUESTION
Are technicians for these 2-strokes still available where you'll boat? Owners report that many (not all) good Detroit 2-stroke technicians have retired, and newer techs may be less familiar with these purely mechanical engines. A surveyor notes he has seen newer techs sent for pre-purchase surveys unable to diagnose engine status on old mechanical diesels. Before buying, confirm that technicians familiar with this 'old-school' technology are available in the areas you plan to cruise. Applies to any boat fitted with these engines. src: Owners discussing diesel engine options

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