Sleep Story 194 - Tractor Principles
Bore You To Sleep - Sleep Stories for Adults
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The Powerstroke and the Exhaust Valve
In high speed engines, the gases cannot escape as fast as the piston moves. They are still flowing out when the end of the stroke is reached. A lek will reduce the charge and so interfere with the production of full power. The piston must make a tight fit in the cylinder. valves must seat tightly, and gaskets and other parts must be in proper condition.
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