Freeing a stuck engine
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If the water is from an external source such as rain, and it came into the air cleaner via the butterfly stud on the air cleaner, chances are there is only a small quantity in only a few of the engine bores. You can only have so many intake valves open at one time, and the water would have only migrated into those cylinder bores. Therefore, you could only have two or three stuck pistons at the worst, not all of them. In such a case, the likelihood of freeing the engine is much better. On the other hand, if the engine had been flooded by rising flood waters, water could have entered via the exhaust system. To make matters worse, water may have also entered through the oil breather and is now (or was) present in the oil pan. Flood waters also have a large presence of silt, chemicals of unknown nature, and varying pH. | If the water is from an external source such as rain, and it came into the air cleaner via the butterfly stud on the air cleaner, chances are there is only a small quantity in only a few of the engine bores. You can only have so many intake valves open at one time, and the water would have only migrated into those cylinder bores. Therefore, you could only have two or three stuck pistons at the worst, not all of them. In such a case, the likelihood of freeing the engine is much better. On the other hand, if the engine had been flooded by rising flood waters, water could have entered via the exhaust system. To make matters worse, water may have also entered through the oil breather and is now (or was) present in the oil pan. Flood waters also have a large presence of silt, chemicals of unknown nature, and varying pH. | ||
| − | ====Flood water damage | + | ====Flood water damage=== |
The silt particles present in flood water could accumulate deep inside of the engine and hang on to the rough casting surfaces of all the internal workings. These particles are so small that when they are in solution they will infiltrate the oil clearance of a bearing. When the water dries, they will form a layer of dust within the bearing. The dust will wick up the oil from the surface and water vapor from the air will start to rust the steel surface over time. The dust may also have acids and alkalies (caustics) attached to it, and together with water vapor will etch the bearing and journal surfaces. | The silt particles present in flood water could accumulate deep inside of the engine and hang on to the rough casting surfaces of all the internal workings. These particles are so small that when they are in solution they will infiltrate the oil clearance of a bearing. When the water dries, they will form a layer of dust within the bearing. The dust will wick up the oil from the surface and water vapor from the air will start to rust the steel surface over time. The dust may also have acids and alkalies (caustics) attached to it, and together with water vapor will etch the bearing and journal surfaces. | ||
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