Sometime a picture is worth a thousand words ...
A deep exploration into the engine's core : few endoscopic inspections of several kind of engines, 05:15.
An engine room tour during yacht sea trials after engines rebuilding, 03:20.
Caterpillar marine engine C18 rebuilding at workshop,
Amazing, a Caterpillar marine engine 3126 running
at workshop without rokers covers, for the fnal tuning
after rebuilding, 00:27.