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- Exhaust Valves
-
- The exhaust valves
- allow the burned
- fuel-air mixture to
- escape from the
- combustion chamber
- and out through the
- exhaust manifold,
- muffler and
- tailpipe. The
- exhaust valves are
- held in the closed
- position by valve
- springs during the
- intake,
- compression, and
- power strokes. At
- the end of the
- power stroke the
- camshaft opens the
- exhaust valve and
- the ascending
- piston forces the
- exhaust gases out.
-
- -end-
-
-