Freeing a stuck engine

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m (Reverted edits by 172.218.91.207 (talk) to last revision by Cobalt327)
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using some diesel and put it in there makes it all lovely and nice
 
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==Preface==
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Before you get out the sledge hammer and a block of wood and start pounding, there are a few things to consider. Most importantly:
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*How long has it been since the engine was last turned over?
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*What condition was the engine left in when last turned over, is there oil in it still, or water? Or is it dry, without oil?
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*Is the engine seized because of neglect/rust/corrosion, or is it because of a mechanical failure like a broken crankshaft, thrown rod, spun bearing or seized piston from detonation, etc.?
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==Taking a look at the engine==
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Start by removing the air cleaner. While removing the air cleaner, check for moisture or water puddles in the oil bath or in the bottom of the filter housing. It might be dry ''now'', but look for evidence of there being standing water in the past. The reason that you are looking for moisture is to determine how much water could be within the engine. If snow has blown into the engine compartment, it will melt and puddle out inside the air cleaner, intake manifold, lifter valley, etc, but not necessarily make its way deep into the engine. If the engine has been flooded by means of overland flooding and rising water, then you could also have an accumulation of silt and dirt within the engine. Dirt and water within the engine is the worst kind of engine lock that you can experience.
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Pull the dipstick and check for water in the engine oil. If you find water in the oil, try and determine how much there is. Start by removing the oil drain plug from the oil pan and watch what comes out. Water will exit first, followed by whatever oil that may be left. If the engine was flooded excessively, there will be basically no oil left; it will have been pushed out by the rising water. The amount of water to oil that comes out of the oil pan is an indication of whether the reciprocating assembly was submerged or not.
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Open the radiator cap and check for coolant. If no coolant is present in the upper tank, open the drain tap and check for the presence of antifreeze. You can remove a upper radiator hose housing and check under the thermostat too. In some cases, you can open at engine block tap or remove a water jacket stud to look for coolant too.
 
Open the radiator cap and check for coolant. If no coolant is present in the upper tank, open the drain tap and check for the presence of antifreeze. You can remove a upper radiator hose housing and check under the thermostat too. In some cases, you can open at engine block tap or remove a water jacket stud to look for coolant too.
 
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Revision as of 05:02, 28 November 2014

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