Car Overhaul full set (optional parts in engine compartment)

It is important to remember that although the engine overhaul can restore the overall performance of the engine to about 90% of the original level, the frequent overhaul of the engine still has a lot of damage to the overall performance of the engine, so before choosing the overhaul engine, we must do a corresponding inspection and carefully check all possible problems, as follows:

1. The oil consumption is serious, and blue smoke is emitted, the power is obviously insufficient, and no oil leakage is found after observation. If there is an oil leakage, you can consider the oil leakage caused by the tightness of the valve oil seal and the misalignment of the piston ring, at this time, you should first do a comprehensive physical examination of the engine to exclude the sealing and other situations before considering.

2: The engine has obvious abnormal noise, and the sound obviously comes from the inside of the engine, not the abnormal sound of external accessories, at this time it is necessary to consider the crankshaft and other accessories in the engine internal wear is serious, abnormal operation caused by abnormal noise.

3: The cylinder block wear, in this regard, you need to find a professional auto repair shop for data measurement, investigate the wear of the cylinder, in order to judge, under normal circumstances, the amount of round loss is 0.125mm per 100mm error, or the cylinder cone wear per 100mm bore wear 0.400mm, the two conditions meet either one, you can consider the engine overhaul problem.

Engine overhaul, the main parts that need to be replaced are: crankshaft, piston, connecting rod, cylinder liner, valve assembly, piston ring, piston connecting rod, large and small tiles, thrust plates, timing kits (different models vary), overhaul packages (all gaskets, valve oil seals, cylinder gaskets, sump gaskets, oil seals before and after curvature, etc.). Under normal circumstances, as long as the engine is overhauled and the engine is all disassembled, these accessories described above need to be replaced together. It should be pointed out that not only these accessories above will be damaged during overhaul, but also damaged during normal use, even if it is not time to overhaul, it is broken, such as piston rings, connecting rods, various oil seals (that is, oil leakage needs to be considered, mentioned above) and so on.