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Published on Nov 30, 2009
finally got the john deere model a unstuck. 23 days after getting it we managed to unstick it.
put a high lift jack on the flywheel center clamp and jacket it up so it would spin in normal engine rotation. then with all that pressure, we used a long barrel air hammer and a larged hammering bit and hammered away at the pistons. when the tractor fell off the jack, it moved the engine an inch. we did it again and again until it spun over its own weight. now i can free hand it (after the spark plugs are out because the rocker and push rods are not installed currently)