ISLADREAM — Marine diesel engines: cooling systems and a useful maintenance plan
2 November 2026
https://isladream.pages.dev/en/journal/moteur/

Documentary synthesis, without an onboard survey. Adapt decisions to the boat, current manuals and actual conditions.

[ ] Photograph engine and transmission identification plates.

[ ] Find manuals matching the serial numbers.

[ ] Keep a separate record for each engine.

[ ] Document work actually completed.

[ ] Check spare-part compatibility, access and crew skills.

[ ] Arrange a trial and record outstanding issues.


Sources & documents
YANMAR — Maintenance FAQ
https://www.yanmar.com/marine/service/faq/
RYA — Engine checks & preventing fuel contamination
https://www.rya.org.uk/water-safety/boat-safety-and-maintenance/engine-checks-preventing-fuel-contamination/
YANMAR — Cooling system maintenance (Japanese)
https://www.yanmar-marine.jp/staffblog/?p=27268
YANMAR — GM series periodic maintenance (Japanese, model-specific)
https://www.yanmar.com/jp/marinepleasure/tips/gm/periodicalcheck.html
RYA — Get your boat ready for summer
https://www.rya.org.uk/water-safety/boat-safety-and-maintenance/get-your-boat-ready-for-summer/
Beta Marine — Manuals and parts documentation
https://betamarine.co.uk/literature-downloads-saildrives/