Yanmar 4JH4-THE

[Brunet27]

Questions:

Is a 3500 hours engine is near to have problems?

Is it better to buy a boat with turbo or non turbo engine. Is more problems to expect with turbo engine?

Is the 4JH4-THE turbo is a good engine?

Thank you

[a64pilot]

If cared for 3500 hours should be considered a mid time engine
Nothing wrong with turbo's, but they are something else to break, more complex than a NA engine, but more HP, smaller and more efficient engine for the HP

All opinions of course

[Hudson Force]

Just as a bit of anecdotal data I'll add that I have 6,568 hrs. and 15 minutes on my naturally aspirated 4JH3E Yanmar with no indications of any real problems to date. I did replace the oil cooler a couple thousand hours back and I have gone through three temperature sensors, but no other significant parts.