I just bought a motor (b18b / didn't get to see it run) and everything checked out with it except a wobbling crank pulley. I switched it out with my other, half-running car (with no wobble from the crank pulley at all) and it still wobbled.

So...either the crank or a big maybe on the sprocket?.....I took the obd2 sprocket off and replaced it with the obd1 style (plate - sprocket - plate - pulley) and it looks like it took the wobble out.

Anybody else experience something like this? I wouldn't expect a crank sprocket to get out of shape....I guess weirder things have happened.

here is the sprocket

how exactly did you tell or determine the crank sprocket was wobbly with the engine running. visually its that bad?