I have been taking on water. Bought a bellows kit then pulled the out drive off to replace them. Then before changing them I figured out that I was leaking water aroung the seal in the transom. So I tightened the bolts up. Fixed the leak. I have spent the last 3 hrs triing to get the out drive back on. It only lack 2 in or so. The bolts touch the housing. Why wont it go in all the way?