Diesel rib
 

Is There Any one that have a yanmar 4lha ste in a rib ?
Good engine or ?

They are a good engine no real problems.
They don't like being over propped and should be able to rev 100-200rpm past max recommended (but not ran at that)
Also suffer from corrosion externally and exhaust elbows can rot and intercooler can corrode and split.Its worth periodically removing the intercooler core to be sure no corrosion is occurring between the core and the case

Thanks for the answer