Yesterday I pulled/sharpened the blade, cleaned the air filter, and changed the oil. Old oil looked about the same as always after 1 full season.
Today I start it up, I get a CLANK-CLANK-CLANK proportional to rpm, and kinda like a rod knockin'. Gets lots worse as I try to mow, so I stop and test. The motor will turn over and start with the rip-cord, but it feels t-i-g-h-t. Oil is clean and up-to-level.
Definitely a candidate for the junkyard, but ... what happened? Key sheared off the flywheel??
P"Law Without Equity Is No Law At All. It Is A Form Of Jungle Rule."