I concur. Get some MMO poured into every cylinder and let it set a few days. Then get a breaker bar on the front power take-off and start trying to wiggle it alternately CW and CCW. Repeat this every day or two until you get some movement. If it's just seized up in the cylinders, it WILL come free, it'll just take some time.
You can make a tool to go over the front power take-off by sacrificing a large 1/2" socket and either cutting two notches in it, or welding a short section of pipe onto it with two notches cut into that.
Or just buy the timing crank from MMI
Of course, this all assumes you have enough clearance to get at the flywheel end of the engine.
You can make a tool to go over the front power take-off by sacrificing a large 1/2" socket and either cutting two notches in it, or welding a short section of pipe onto it with two notches cut into that.
Or just buy the timing crank from MMI
Of course, this all assumes you have enough clearance to get at the flywheel end of the engine.
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