Hi, I could use some advise before I make the next move. I made a big mistake when combining with my gleaner F. first day I checked the water and it was good. the second day I didn't check, so I don't when I ran it without water but I did for a while. I managed to drive it back in the barn and now that's where it sets. I put water back in and it still holds water, even 1 1/2 years later. I tried to start it with no luck. I then checked the spark and gas which are both good. I then checked the compression. Now this is where it is bad. Cylinder closes to the fan is 30psi, the second is 60psi, third 90psi, and forth 120psi, then I stopped checking. I can't get the motor off the combine where is set. I am good at taking things apart but not much of a mechanic for putting things back. I could probably take the head off and get it checked (I could probably put the head back on)and go from there? what do you think? appreciate any help thanks