They love oil passages in crankshafts! Always run a rifle brush through all the holes in your crank before assembling an engine. I saw a high-dollar race engine trash a rod bearing after a quick assembly job of a backup engine between weekend races. Mud wasp nest in a crank passage!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!