I think I made the chain of events and the causal factors pretty clear.
Nope. That's exactly what I dispute. Suppose they did not overprime when starting the engine for the second time. Would a fire have broken out then? I don't think so. So the plug fouling and everything else that did or did not happen before the second start did NOT contribute to the fire.
The only thing that the plug fouling did was cause the flight to be aborted, and that eventually caused a necessity for a second start. But it was the overpriming that caused the fire. And the fire would have happened too if the plugs were not fouled up, but there would have been another reason for the restart where the same sloppy priming technique would have been used.
I would guess that you aren't an advocate of flying lean of peak.
You show me an O-320 installation in a PA28 that can reliably and consistently be leaned to LOP, and you've made me a convert. But until then I'll just lean until rough running sets in, and then enrich a tad more to restore smooth running. Heck, most O-320 installations I've seen don't even have an EGT gauge.
Can't understand what this has to do with the present discussion though. Unless it's intended as a low blow with which to end the discussion. In that case I'd say: Bring in the Nazis.
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