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REPAIR valve gear. Check the status of the sealing washer plates valve springs

During engine operation in the gaps between two biscuits (Fig. 42), the valve may accumulate oil, which seeps along the rod to the end of the valve guide bush and then across the gap in the bush - in the combustion chamber. The oil leaked into the combustion chamber reaches the spark electrodes, causing perreboi in the ignition, and then burning, gives a smoky output of the muffler. To protect against penetration of the oil groove in the valve stem is worn rubber sealing washer which is its resilience creates a seal to the plate over the entire surface of the cone. Washer plates all the time working in the oil at high temperatures and by the time the material washers (Rubber) loses its elasticity and hardens, disrupting the seal. Therefore, when the valve mechanism assembly and reassembly each time change the old washers with new ones. Final check rubber seal plates springs produce valves after assembly of the cylinder head. To do this you need to install the cylinder head so that the axis each set of valves were alternately vertical and clearances between the crackers could pour gasoline. If gasoline remains for a long time in the gaps between the crumbs, rubber Washers provide a seal. At valves, where gasoline leaks, replace the sealing washers.
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