Maintenance of diesel after flood

Since the flood water contains a large amount of sediment and corrosive substances, after the diesel engine is immersed in the water for a long time, impurities such as sediment will remain in the machine. Abrasives will form on the friction surface, which will cause blockage and corrosion in the through holes and channels. Pieces must be fully disassembled, carefully inspected, carefully cleaned and necessary overhauled. 1. Rinse the impurities on the surface of the diesel engine with clean water, and clean the waste diesel oil, waste oil and cooling water in the engine. 2. Try to fix the crankshaft flywheel with sticks, ropes, etc. Do not turn the crankshaft flywheel before the cylinder has been cleaned to prevent the cylinder from entering the mud and pulling the cylinder. 3. Remove components such as intake pipe, exhaust pipe, fuel tank, fuel injector, cylinder head cover, cylinder head, oil pipe, diesel oil and oil filter, air filter, oil sump, oil filter, etc., and use clean diesel oil. Wash, all kinds of paper filter, paper pad should be replaced. 4. Clean the cylinder sediment with a brush, gasoline (or diesel), and remove the piston rod assembly for cleaning. 5. Cylinder liners, piston rings, valves and valve seats shall be rust-removed or ground if they are rusted, and new parts should be replaced when the rust is severe. 6. Decompose the fuel injection pump, fuel injector, and oil pump, and use clean diesel to clean; when the three precision parts are rusted slightly, they can be painted with each other and the rust can't be eliminated after mutual research should be replaced. 7. Thoroughly clean the crankcase, oil pump, oil radiator, oil pipeline, timing gear chamber, crankshaft journal, etc. with diesel to ensure the smooth flow of lubricant. 8. Use clean water to remove impurities from the water tank radiator, water jacket, and water hole, and blow the impurities in the water channel with a gas cylinder or compressed air. 9. Carefully clean the through holes and small holes in the diesel engine for ventilation or oil storage. Carefully inspect each fitting for damage and replace damaged parts. 10. Wipe the parts surface, and apply clean oil on the mating surface, assemble the diesel engine according to the technical requirements, and add diesel oil, engine oil and cooling water. 11. After the diesel engine is assembled, start the test run to check for oil leakage, water leakage, air leakage, and abnormal noise. If there is any abnormality, stop it immediately and check it out.

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