Today my wife (she is a total sweetheart) and I took the hood assembly off the mutt I own (49 W/late 51 engine) and I drilled out two head bolt holes and put in thread repairs. Head is back on and torqued. I cleaned up a bit and quit. Tomorrow the hood goes back on and I will put everything back together. Then a general maintenance effort with greasing the fittings and changing the oil and filter and cleaning the air filter and new plugs and fresh gasoline. Reinstall the battery and give it a try. It hasn't run in four years and sat on my hunting property mainly because I was disgusted that it had overheated (head gasket remember). I wanted to get it home where I could do the job right but couldn't get anyone to go with me to help load it up on the trailer. Son finally found the time to help. good thing too cause the property is in need of a lot of maintenance that can only be done with the tractor. My 77 year old back is aching, but I'm still a happy man.