I'm attempting to free up a stuck 235. I currently have a 50/50 mix of diesel fuel and ATF sitting a quarter to a half inch deep in 4 of the cylinders. I say 4 because two of the cylinders - the two nicest ones - won't hold the fluid. Is that to be expected? The two cylinders that looked the worst looked like they had held water at some point. One was full of a yellowish powdery substance. I cleaned that crud out before I poured in the magic potion. Also, this engine is on my garage floor, and it doesn't appear to have a crank bolt in place. I know I need to occasionally try to spin the crank, but is there a better way than the screwdriver/pry bar on the flywheel method? Or should I drain the oil, flip the engine over (the head has been removed) and pull the pan and crankshaft, allowing me to reach both sides of the pistons? (I can't get the engine on a stand because I can't seem to find the remaining bellhousing bolts - I heard they were behind the flywheel and I can't remove that because I can't spin it to get to all the bolts!) Thanks ahead of time.