i was breaking in my new moby project yesterday and its running great. 20 miles of breakin, jetted rich, plenty of oil, really breaking in nicely. i pull over to tighten my novi nut and when i go to restart, no go. i turn the engine by hand and feel huge resistance, squeaks, snags, etc. I figure "nice one steve, you siezed another".
i wheel it home, drop the engine, tear it apart and prepare for carnage. To my suprise, the cylinder, piston, and rings are all pristine (i guess thats a plus). I thought i had fucked my port job up or something, and snagged a ring. but instead my crankshaft is wicked tight in there. it will turn, but with huge resistance... feels like itd feel if you left it in the rain for 3 years or so and just let it rust.
i really just wanna know what gives. im happy that my top end is ok, and im going to get a whole new bottom end setup but why did this happen in the first place? Ive built about a baker's dozen AV7s at this point, so i wouldnt immediately attribute it to build problems. i just want to know why this happened, what usually causes bottom end siezure, and how to prevent it... that way this doesnt happen again! thanks for reading.