i have a 1981 evinrude E115TLCIM on a 17' checkmate also 81'. i got this boat 15 years ago and have done all the work on it myself including pulling the powerhead and complete disassemble and rebuild. Now i have to rebuild/replace the tilt cylinder because its leaking at the top around the shaft. If i'm lucky a o-ring kit might do the trick.Either way the tilt/trim has to come off and thats were my problem lies. According to my factory shop manual(the one for this year and model,the real deal), with the engine all the way down you are supposed to manually lift the engine up and put the support prop bar out. Let me tell you, i tried even with a huge pry bar to move this manually. It's not happening. I used the power tilt to put it up and set it down on the prop bar and release a little pressure off the cylinder, removed the clips on the top pin of the cylinder mount and tried to drive the pin out. NOT HAPPENING. Soaked with pb blaster and still no go. I've used heat from a torch in the past too many times to count but this dosen't look like a place i want to do it at. Any secrets, tips or suggestions are welcome. I ain't whipped yet. I will get it, i always do. But i'd rather take a bit of advice from someone who's been there, it saves time and frustration.