(A) should pay attention to the start of the problem

(1) Pre-lubrication before start-up. When the engine is turned off, most of the lubricating oil on the surface of the lubricating oil path and the friction surface flows back to the bottom shell. In order to reduce the movement, the throttle handle should be in the closed position before the start

Turn the crankshaft several times, and then start again.

(2) winter should be preheated Baotou North Mercedes-Benz accessories engine. Winter oil is more viscous, easy to cause difficulties in starting, before starting in the tank should be added about 80 ℃ hot water, so not only easy to start, but also extend the engine life.

(3) can not start after the water. Winter car after the general should put the cooling water to the net, the next day to start, some players in order to make the start, then start after the water. This method is harmful. Because the engine starts, the combustion chamber four temperatures as high as 1700-2000 ℃, if immediately add cooling water, easy to cause cylinder head, body, water tank and other parts of the crack.

(4) Correct control of the throttle. The general temperature below 15 ℃ to start the engine, the throttle control in the slightly higher than the idle position is appropriate; temperature above 15 ℃, do not start the throttle, empty crankshaft after a few laps, plus a small throttle start. If the use of large throttle start, several times are not successful start, you must immediately turn off the throttle and then start the engine, see the exhaust pipe without black smoke, plus a small throttle. In addition, the big throttle start, should be fully heated in the small throttle, especially in winter, usually 5-8 minutes, when the water temperature rises to 40 ℃ when the start, the water temperature of 60 ℃ before they can work.

(B) should pay attention to the problem when extinguished

Do not stop the throttle before the flame. Boom throttle engine speed fluctuated, fuel and air mixed uneven. Combustion is not complete, fuel consumption increases, will make Baotou North Mercedes-Benz accessories cylinder liner, piston, piston ring, into the exhaust valve and nozzle, etc. Coke increased, but also easy to cause Baotou North Mercedes-Benz accessories connecting rod deformation, crankshaft broken and other accidents The In addition, the throttle is also easy to rush the cylinder pad, crankshaft oil seal and broken valve springs. It can not be parked at once in winter. Winter when the ambient temperature is low, and the body temperature is about 90 ℃ in the case of large temperature difference, if immediately turn off the water, easy to make the body, cylinder head, water tank and other parts of the crack. The correct approach is in the small throttle position idle running 5-10 minutes, until the body temperature dropped to 50-70 ℃, and then turn off the water.