Further to the pre-purchase, I have a question that I haven't clearly seen answered.
With an engine that hasn't been run regularly, there's a real concern about cam/lifter spalling... I get that.
I also know that it's a crap shoot in a lot of cases and often the engine starts to come apart in the first 100 hours or less.
For potential purchasers, it'd be educational to know if it's occaisional, often, usually or most always.
The question is: has anyone that bought an infrequently flown plane and had a pre-purchase that did an oil analysis, checked the filter element to check for metal,
pulled 2 jugs to visually inspect each lobe of the cam and borescoped the remaining 2 cylinders had a subsequent failure?
And to balance that out, who has done all that and had no failure in the next 100 or so hours?