Whoa!! I wouldn’t have thought to look at the compression tester setup. I think that piece is too big to be part of it, but…I’m going to check it out for sure…Wow! That would explain a lot, like the loose valve seat. I doubt that the pin was doing anything good. Is it possible that it fell in during a spark plug service or compression test? (As in, it was in the hose for the compression tester and fell into the cylinder?)
Thanks for the posts.
All the best,
Peter
Thinking more about it…I’m trying to imagine how it got there. Maybe it wasn’t there until AFTER the motor started this episode? But…it kinda looks like the valves have little marks in them, as if that piece were bouncing around on top of them…
Or, maybe it was lying on the top of the motor, somewhere around the carb and between the heads…and when I pulled this #1 cylinder head, I had to lift it about straight up to clear stuff around it, so I wouldn’t have been able to see if anything were laying in a place in which it could fall in when the head was lifted? That seems like a stretch to me, but I can’t rule it out. I’m out of ideas now LOL…
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