Valve clearance (1) Definition: refers to the valve lash fully closed (convex portion of the cam is not top tappet), the tail end of the valve stem clearance between the rocker arm or tappet. (2) the role: to ensure the thermal expansion valve seal leeway. The gap is too large: intake, exhaust valve open late after Shandong East diesel engine, reduces the intake and exhaust time, reducing the valve opening height, changing the normal valve timing East diesel manufacturers, the engine due to lack of air intake and exhaust And without a net decline in Weifang Huadong Diesel power, in addition, to make the body parts hit the gas distribution increases, accelerated wear and tear. The gap is too small: the engine work, parts of thermal expansion, the valve open, so that the valve is not closed 严华东 diesel engine, resulting in leakage, power down, and valve sealing surface a serious coke or burn, even percussion piston valve. As the project a wide range of machinery, specifications, machine weight, large parts, the general approach to spray paint. Spray tool air spray gun, airless spray gun, air-assisted spray gun and portable electrostatic spray gun. Low air spray gun efficiency (about 30%), high-pressure airless spray gun paint waste, both common feature is more serious environmental pollution, it has been replaced by air-assisted spray gun and portable electrostatic spray gun and being. On the hood, such as sheet metal cover portable electrostatic spray gun is used. Engineering machinery coating equipment generally use more advanced water rotary spray booth. East diesel engine manufacturers, Weifang Huadong (certified), provided by East China Weifang Huadong Diesel Engine Co., Ltd. Weifang Huadong Engine Co., Ltd. (www.hdchai.com) is an industry leader in Shandong Weifang, the internal combustion engine, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Weifang East leaders with the staff warmly welcome all inquiries negotiations to create a better future Weifang East.