If a lot of oil from entering the combustion chamber and is vaporized, and smoke exhaust. The blue smoke is actually recondense oil steam. Sometimes, the diesel engine in cold starting or low load emit blue smoke, but warm up or disappeared after the increase of the load, which is often due to oil steam burn when burning will not completely black smoke (free carbon).
Channeling oil blue smoke from the consequences of oil consumption is rising rapidly, and produce large amounts of carbon and other products of combustion performance of the fuel injection machine, piston ring wear accelerated deterioration, piston ring, cylinder and other parts, should be avoided. But the blue smoke from what is the cause?
1 diesel engine running in bad. The test shows that the new or overhauled diesel engine generally needs to run in 30 ~ 40 hours to achieve a good technical condition. Without a good run directly with normal working load is the most common cause of blue smoke.
2 Baotou beiben heavy truck parts piston ring and cylinder inner surface roughness, ellipticity, taper and clearance does not meet the requirements, or because of Baotou beiben heavy truck parts connecting rod bending, spindle hole and cylinder sleeve and the piston is not vertical eccentric wear, also caused the oil leakage of blue smoke.
3 diesel engine for a long time under low load (load less than 30 ~ 50%), low pressure cylinder.
4 Baotou beiben heavy truck parts oil sump excessive oil pressure is too high, viscosity is too small, the piston ring wear and loss of elasticity or piston and cylinder gap is too large, the oil pan oil bath air filter in excess oil and so on.
5 with chamfer of the piston rings or ring will distort the direction wrong, but the oil pump into the combustion chamber.