Just went thru this with my pontoon. Soaking didn't help! I had to beat it out with a long spike used for landscaling timbers. It wasn't easy cause I didn't have a lot of room to hit it with my hammer,but I did get it out. When it was time to install my steering, we lifted the motor off the transom,turned the motor sideways and I took an industrial type wire brush (12ga)shotgun size hooked to my drill and sprayed pb blaster in the tube and brushed the hell out a the tilt tube,wiped it clean and applied marine grease to the tube. Slid the steering cable in, bolted the motor back on and all was fine! I did have another tilt tube located on Craigslist in case mine was too bad.