Overhauling GA aircraft engines
A wee quick Question regarding the more common 4/6-Cylinder General Aviation piston engines, e.g. Lycoming 0-235, 0-360, various 4/6-cyl. Continentals etc., just out of pure interest.
In most piston-engined GA light aircraft the engine is overhauled every 1800 hours or 2000 hours. What is actually involved in this overhaul? I take it this is when major components are replaced, e.g. gaskets, cylinder head etc.? Are there any other parts which are replaced between the overhauls? Like I say, I ask this out of pure interest, I don't actually need to know it but I am learning to fly so I am just interested in the workings of the aeroplane (I'm an apprentice engineer you see so I'm fascinated).
Cheers
Smithy