I recently bought another 1965 110, and it was delivered on December 26, 2015. After unloading the tractor, the first thing I did was turn the engine over by hand to see if if had any compression. I was only able to turn the engine about a 3/4 revolution in each direction, assuming either the drive belt was stuck in the transmission pulley or variator pulley, or there was a broken rod keeping me from turning the engine completely over. So, with thinking this tractor project will just have to wait until another day, I pushed the tractor and parked it next to the garage.
Yesterday, after getting one of the other 110's ready for plowing snow this weekend, I stopped and tried turning the '65 110 engine again by hand, and quickly found that it doesn't move! I only used the strength of my hands, and didn't use any tools for trying to break it loose. How can this be? Can an engine seize fast that quickly? If the engine does have a broken rod, what would be seizing and keeping the rest of the motor from turning, the crank? In just a couple of weeks? I'm telling you, this thing doesn't budge!
When the previous owner went to push the tractor around, he accidentally broke off the rusted muffler, which exposed a view to the exhaust valve. The valve is highly rusted and I'm pretty sure it will take some work in order to remove it. Even if the exhaust valve is stuck or rusted fast, that alone wouldn't keep the engine from turning over by hand would it?
I removed the spark plug yesterday, and from what I can tell, the top of the piston is highly corroded. Anyway, I filled the cavity as much as I could with penetrating oil, just to see if things will loosen up a bit, or just enough for me to break whatever it is that is stuck, loose. I also sprayed some penetrating oil in the exhaust hole, and tried to cover as much of the exhaust valve that I could, just hoping to make some headway when the time comes to take the engine completely apart and rebuild it.
Any thoughts or input would be greatly appreciated.