Views: 0 Author: Site Editor Publish Time: 2014-04-07 Origin: Site
The role of the oil is to ensure the piston when the engine is working, and the piston ring has good lubrication between the cylinder walls. When the engine is working, the oil must consume, adheres to a layer of oil on the cylinder wall using a splatter method, because the piston ring is limited, the oil remaining on the cylinder wall under high temperature gas, some are burned, there is As the exhaust gas is discharged or the carbon is formed on the cylinder head, when the engine temperature is too high, some oil evaporates vaporization and is driven to the crankcase. When the engine has a good condition, these consumption is relatively small, generally do not exceed the __0 _._ 5_% _8_8_, but when the engine's technical condition is marked with the extension of the time, the oil consumption will increase . The increase in oil consumption marks that engine performance has dropped.
1 The amount of gas is large, the oil is blown from the ventilation pipe from the ventilation pipe.
2 oil cooler oil leaks.
3 The gap between the piston and the cylinder wall is too large.
4 Piston ring pair, or the card is lost in the loop slot.
5 Twisted loops or cone rolls revealed the oil resistance, but pump oil to the combustion chamber.
6 valve oil seal is damaged.
7 Uppercharier seals fail oil.
8 crankshaft oil sealing oil.
⑨ Leak oil with the gasket of the crankcase joint portion.
Air compressor slamming oil.
(2) Diagnosis and treatment method_
1 First check the cylinder crankcase joint and tubing joints, such as inorganic oil leakage, and whether the oil seal is sealed before and after the crankshaft. If the oil sump is found to be infiltrated with the binding surface of the crankcase, the oil housing screw is fastened, and the liner is good, and the pressure in the crankcase is too high.
2 Take the oil ruler, if the pressure of the crankcase is indeed too high, it can be considered to be clogged by the crankcase ventilation device, and the dredging must be performed.
3 If the oil seal can be severely damaged before and after the crankshaft, it should be repaired in time. If it is just seepage, it can still be used temporarily, and it will be excluded from the secondary maintenance, but it should always pay attention to the oil surface height.
4 If there is a lot of oil in the air in the gas tube, there are many oils, the air compressor is blowing oil. The air compressor piston should be checked, whether the wear of the piston ring and the cylinder wall is too much, and it is repaired.
5 If the exhaust of the engine is blue, the oil is discharged by the oil-in-cylinder burn. It should first check that there is inorganic oil in the intake pipe. If an organic oil indicates that the sealing ring of the pressurizer is damaged, the oil will flow into the airway and need to replace the seal.
6 Check if the valve oil seal is intact, whether the fitting clearance of the intake gate rod and the catheter is too large, and replacing the repair.
7 If the above examination is good, then remove the cylinder head and the oil bottom shell, perform a comprehensive examination of the cylinder, piston, and piston ring, and achieve the purpose of the troubleshooting.
8 Check if there is an oil in the coolant, if there is, the cylinder or cylinder head is crackd from the cylinder or the cylinder head or damage to the oil cooler, so that the oil oil enters the coolant, it should be found to be repaired.