stuck tractor

alright i made this homemade concoction  for this stuck 430 JD the cylinder walls look ok just a few places  that i can see looking through the spark plug hole but i cant see down near the piston where its probly the worst  its been stuck since the late 70s 80s. alright could i maybe hook a pto from another tractor to this tractors pto and kinda nudge it a little and maybe it breaks loose . has anyone ever done this iv heard it before but can it work

Why not just chain it up and drag it it gear. Bend a rod maybe. It will either work or it won't. Probably still have to tear it down.

Its easy to bend a rod trying to force an engine over by turning the crankshaft some way. Trouble is the rod will bend sideways and put a bind on the piston and the crankshaft journal. and then the added load on the rod will break it and the remains will often create a new crankcase inspection port, a hole in the block or the pan. Its far better to take the engine apart and pull the pistons out or push direction on the pistons in the sleeves.

Gerald J.

im probly just guna pull it apart iv just heard that if it wasnt to bad i might work

Best to take your time and pull it apart.  Forcing it to move by a mechanical means results in just having to spend more money.  Take the engine right out of the tractor and try to rig it up in a way so you can fill each (or both in some way) cylinder with 50/50 acetone/ATF.  Let it soak for a month or 2.  Things will come apart easier.  Clean everything up, do a major rebuild and you should be good after that.

Put the penetrant in the cylinders every day. It works best to put enough in to get past the ring gaps, so every space between the rings gets wet. You may have to loosen the valve adjusters and close the valves to fill those cylinders, since they are horizontal. Put it in high gear and rock the tractor back and forth or as someone else said jack up on side and rock that wheel. Do this once a day. Refill the cylinders daily. Be patient. It should work loose after 4 or 5 days. Don't pull it or hook to another PTO. You'll do more harm than good.

I had a UC that we soaked for a year, never did come loose. Tore it apart one of the liners was busted from water freezing Had to drive it out with a 4x4 and sledge.

A method I used recently was to take the head off. After soaking with 50/50 mix for a while. Rock the tractor in gear gently back and forth. No luck. So I put brake fluid in each cylinder & light it. Let it burn till the block gets warm as if it had been running for a while. Wasn't a violent fire at all. Nice slow steady. Easy to put out by rocking the tractor. Worked great for that one.
Ray W.

Yep, I was thinking next series up. Cylinders don't need to be full.

50/50 acetone at mix. Pull the rockers off closing valves. Use adapter for checking compression and put about 150psi of air to each cylinder. You hear the 50/50 mix going past rings. It will either turn loose or it will just make it easier to disassemble. Done this trick successfully several times in an engine that looked like slightly rusty inside with borescope. Some engines can't have our redneck ingenuity and are just too rusted stuck.

Pull it apart if everything looks good a gasket set and a quick hone is all it'll cost you , but I would also check the head they are notorious valve burners. Neighbor had one in a combine I've got one in an MT. T.J.