Universal / Westerbeke · M-30 / 5424 (survey conflict: M25)
Engine compartment
Manuals: 3 cyl, 24 hp @ 2800 rpm, 68 cu in, 21:1 compression. Personal notes conflict (~25 hp @ 3200, Kubota D950 lineage); survey lists an M25 (~21 hp). No-start/air-in-fuel history and an over-pitched prop that may be lugging it.
Verify onboard: Photograph engine ID plate, Universal/Westerbeke tag, and transmission tag; compare to manuals before ordering any engine parts.
Last serviced
First start after winterization, May 2026
Open issues
2
Open tasks
1
Parts on record
0
Every logged job that touched this component.
First start after winterization — rough, then recovered
—
Follow-up: Watch for red flags: black liquid/smoke after 10–15 min, weak raw-water flow, overheating, milky oil.
May 6, 2026
Compiled the M-30 annual / 100-hour service plan
Oil, fuel, cooling, air, and belt service items from the manuals
August 27, 2025
Planned and completed work for this component.
Problems and conflicts on record for this component.
Project context and manuals say Universal M-30/5424; the survey says Universal M25 (~21 hp); spec details conflict across notes.
Next step: Photograph the engine ID plate, Universal/Westerbeke tag, and transmission tag; compare oil/fuel filter bases to the manuals.
Hard starting at high throttle; antifreeze then black/dark liquid in exhaust; smoothed out and idled normally after 10+ minutes.
Next step: Watch for red flags: black liquid/smoke after 10–15 min, weak raw-water flow, overheating, milky oil.