This thread is at risk of descending into rational objectivity. Shame on you, OzB, 43, AB, J, Weheka, Cockney S et al!
My understanding is that the most wear and tear on a bog standard piston aero engine occurs at …
Startup. (This is consistent with yr right’s point about the number of ‘cycles’.)
Cold engine and high RPM too soon after start = badness.
So, it’s probably smart to maintain very low RPMs after start until the engine is sufficiently warm.
However, my understanding is also that if you want to do even more damage, you should…
Set 25/25 in the climb (if it’s an injected engine).
Disabling the enrichment function and moving PPP closer to TDC = worseness.
So, it’s probably smart to climb at wide open throttle and higher RPM.
But let’s ignore this silliness and get back to reality.
Thrash cold engines on the ground and climb at 25/25! And if you want to really ‘take care’ of your engine, set 40 degF ROP, in accordance with the POH. That will put you in the Pantheon: “I’ve been doing this for 20,000 hours / 40 years and therefore my opinions about engine management / maintenance are objective truths.”
We had a few cracked pots, all were due to metallurgical, manufacturing or installation defects.
That’s
crazy talk! All engine problems are surely due to ‘excessive leaning’.
