3.10.5. Valves

Remove a deposit from valves. Check whether the core is deformed and whether there are no cracks on a plate; at damages replace the valve.
Check whether it is not too worn-out and whether the working facet is damaged. When grinding a working facet of the valve on the grinder maintain the facet corner equal 45 °30 '±5’’ and you watch that thickness of a cylindrical part of a plate of the valve after grinding was not less than 0,5 mm and also that at the final valve it was not removed the layer of solid alloy which is built up on a facet.