Posted by David K on December 18, 2001 at 17:00:40:
In Reply to: I couldn't agree more.... posted by Jim on December 17, 2001 at 22:36:33:
"If your valves open too far, you lose power. If they don't open far enough, you burn up valves which would require a pretty major effort to fix (replace valves, regrind valve seats, or both)."
This statement is incorrect. It should read as follows:
If the valves do not close tight because of too little clearance, ( not enough to allow for metal expansion) the valves edges will be exposed to combustion flame and will burn.
Too much clearance and the valves will not open far enough and there will be a loss of power.