After that I grinded the valves/valves seats with this...
I put some of the compound on the edge of the valve,slip it in it's slot, put the succion cup on it and then twist/lift/rotate 45 degrees/twist.Go by sound as you can hear the "grinding" sound subside.I did that for a full rotation,then took the valve out,cleaned it off,cleaned the seat off. Then put some compound back on and did the same thing...All of this a total of three times per valve to make sure all the surface was covered.
This is the result you can clearly see the différence in the valves AND the seats.
This is the result you can clearly see the différence in the valves AND the seats.
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