North Benz V3 parts to the exhaust valve burning door is the most common, the basic reason is the distortion of the valve seat and deposits. In addition, such as improper adjustment of valve clearance, can also cause excessive wear of valve.
When the valve seat of the North V3 valve is distorted, the temperature of the valve sealing surface and the local pressure between the valve seat and the valve seat are increased simultaneously. North Benz V3 valve fittings groove often appear on the sealing surface, by high temperature gas erosion will form a loss. When the valve sealing surface and the valve seat of coke is serious, the heat transfer conditions deteriorate, but also prone to deformation, lead to valve burning.