I'm looking to purchase a boat with an AV 540 that has all six cylinders with the CermiNil process done by ECI. All six cylinders were certified airworthy when they were installed on the boat some years back (I've seen the yellow tags and paperwork). All of my boats have been aircraft, but I've never heard of these cylinders. From what I've read online, they seem to be as good as you can get...ECI warranties that CermiNil-treated cylinder bores will remain free of corrosion and wear beyond service limits in normal operating conditions to TBO.
Just looking for more opinions, because I know nothing about them. Are these unusual to find in an airboat engine?
Just looking for more opinions, because I know nothing about them. Are these unusual to find in an airboat engine?