I have an Iseki 1700TU. Been a good running tractor however this winter while I was using it, a leak developed. After it warmed up to where I could get outside for longer then 5 minutes I found that I had a hole in the bottom of the transmission case. It looked like there was a bolt laying inside the case, across the hole. I tried to fish it out but no luck. I've attached a picture. Since it was still cold outside I decided to wait till it warmed up. Today was the 1st warm day and so figured I'd remove the top of the transmission housing to see what I could do. JB Weld figures high on the fixes right now. Anyway, 1st problem. I need to remove the shifter and I'm not having any luck. I've attached a picture of the shifter. There appears to be a bolt holding the shifter to the transmission shaft. I loosened it and tapped it with a hammer but it wouldn't budge. Any suggestions?