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The easiest way is to try and turn it over by hand. First, disconnect the battery...don't want it to start accidentally...that would really hurt!
Next, locate the crankshaft pulley. You'll find it at the front of the engine (where the accessory belts for the alternator, power steering, etc. are) and at the bottom. It's usually the biggest pulley on the engine and the one that all the other belts go to. In the center, there should be an attaching bolt. Select the correct size socket to fit the bolt, and use a ratchet to turn the engine in a clockwise direction. Turn it over twice, to make sure all the cylinders are free to move.
If not, remove all the spark plugs and make sure it's not locked with water or gas and try again. If it still won't turn, then there is a serious internal mechanical problem that will require teardown to check.
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∙ 13y ago
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