auto trans 225 engine

The convertor has to be engaged. Means you don't just push it on until it stops. Not unless you got lucky and hit the tangs right off the bat. Tangs being slots. Usually you slide the convertor on until it stops, then rotate the convertor until it slides on another 2 inches? That's how the tranny pump engages. If you had to crank especially hard on the bolts to get the tranny up to the engine you may not have had it lined up. Have you ever done anything like this before? R & R tranny? That's what is meant by engaging the lugs.