Yes I will check them when I get home from school. How could the valves be the problem? Is it just cuz! They won't seal? Or?? Could youu explain what it is the valves would be messing up.?
Because the valves get out of spec over time. The valve adjustments ensure the valves continue to open and close properly and at the same places. If they begin to drift out of spec and are not dealt with, you'll prematurely kill your engine.
Tight valves will have a tendency to "cup" their edges. Common in intake valves. Tight vavles are being pulled upward into their channels harder than they should be and the result is the edge of the valve will be bent inward as the pressure over time takes its toll. When put back into spec, it is too late. You now have this open gap around the edge of the valve that no longer seals. Loss of compression, blowback, etc.
Loose valves hang down lower than the should. Too loose and they won't seal properly causing gases to escape prematurely or worse, hang so low that the piston actually strikes the valve even as it attempts to close. Very destructive.
The tolerances we are talking about here are very fine.
What a valve adjustment does is compensate for changes in spring tension over time.
Valve adjustments are just preventive maintenance to ensure your engine will survive.
