Ya, i don't really understand. The motor ran like hell before it threw the water pump. I almost buttoned it back up, but decided i wanted to lift the crank to properly install the rear main seal. It had good oil pressure, and didnt knock or anything. I guess i'll have to see if the line hone or crank is out of wack. What does a shop usually charge to check a crank, and line bore? I'm in stillwater, oklahoma if that helps.