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.