Diesel Injector Fuel Injector 0445110478 Bosch for BMW

If there is plate like debris in the palm, it is black smoke, indicating that the mixture combustion is incomplete; If there is a little black oil beads in the palm is a symbol of blue smoke, indicating that there is oil flowing into the combustion chamber combustion phenomenon; If the hand only white mist is white smoke, this is because the combustion chamber mixed with water; If there is no obvious sign on the palm, the engine is burning well. ③ The penetration method is used to check whether there is a crack in the body. The oil and kerosene are mixed in a ratio of 3:1 and painted on the suspected cylinder body where there is a crack. Stop for a moment, wipe the liquid layer on the surface with cotton yarn head, and brush a thin layer of chalk foam immediately. (4) With the hand pressure method to feel the wear of the oil valve remove the high pressure oil pipe, screw out the tight seat, take the oil valve spring, open the throttle, exhaust the air, with the mother finger hard to press the oil valve front on the valve seat, to open the pressure reduction, shake the crankshaft, if in the oil supply, feel a great force to press the finger up, that the oil valve couple parts are well sealed; If the jacking force is not large and the jacking height is small, it indicates that the even parts have been worn; If the jacking force is small, it indicates that diesel oil spills from the sealing ring belt, which proves that the couple wear seriously.