I appreciate any internal combustion engine.
I had a 225 that clacked evenly, but loudly. I figured all the valves were loose. When I pulled the valve cover, I saw so much crud, I put it back together and left well enough alone. It ran and ran, until I sold it to a friend, in three installments of $25 ea, for $75. :lol: (73 Dart Sport) This was about 1983. A buddy of his slid it into a curb on wet leaves and screwed up a back wheel and axle. Who knows, maybe it's still running in someone else's car?
I delivered pizza with that car, a job not for weenie cars.