Valve clearance (1) Definition: refers to the valve lash fully closed (raised portion of the cam tappet not the top), the rear end of the valve stem clearance between the rocker arm or tappet. (2) Function: to ensure the thermal expansion valve seal leeway. The gap is too big: forward, after the exhaust valve opens late, reducing the intake and exhaust time, reducing the valve opening height, change the normal valve timing Huadong brand diesel engines, the engine due to insufficient intake of East China diesel exhaust is not The decline in net power, in addition to the East China diesel retail gas distribution mechanism also hit parts increases, accelerated wear and tear. The gap is too small: the engine work, parts of the thermal expansion of the East China diesel market prices, the valve open, valve distress, caused by leakage, power down, sealing surfaces and a serious coke or burnt valves, valve or even crash Pistons. Fuel pump 1, function, requirements, type function: increase diesel oil pressure, according to the working order of the engine, load size, regular quantitative high pressure to the injectors to deliver fuel. Requirements: (1) pump oil pressure to ensure that the injection pressure and atomization quality. (2) shall comply with the precise amount of oil needed for the number of diesel engine. (3) to ensure working order by the diesel engine, at a specified time and accurate supply. (4) The amount of oil and oil adjustable time being, and to ensure that each cylinder oil evenly. East China diesel market price _ _ Weifang Diesel Engine EAST EAST EAST offered by Weifang Diesel Engine Co., Ltd., East China. Weifang Huadong Engine Co., Ltd. (www.hdchai.com) strong, credible, in Shandong Weifang engine industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve Weifang Huadong innovative ideas will lead into the brilliant and you work for a better future!