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2. Rocker cover - Wikipedia

   en.wikipedia.org/wiki/Rocker_cover

   A Shelby Mustang Windsor V8 engine with "Cobra Powered by Ford" labeled rocker (valve) cover (lower left) A 4-cylinder Lycoming O-320 aircraft engine, with the rocker box cover of one cylinder (of the two visible) removed to expose its rocker arms for inspection. A rocker cover, (UK), or valve cover (elsewhere) is a cover that encloses the ...

3. Crankcase ventilation system - Wikipedia

   en.wikipedia.org/wiki/Crankcase_ventilation_system

   PCV valve on Ford Taunus V4 engine (feeding from left side valve cover into the inlet manifold) A crankcase ventilation system (CVS) removes unwanted gases from the crankcase of an internal combustion engine. The system usually consists of a tube, a one-way valve and a vacuum source (such as the inlet manifold).

4. Saturn I4 engine - Wikipedia

   en.wikipedia.org/wiki/Saturn_I4_engine

   The head casting was changed to accommodate different mounting surface of the new valve. (1994 CA emissions engines used an adapter to mount the LEGR valve.) A new LL0 cylinder head appeared in 1999 using a roller camshaft with hydraulic lifters and rocker arms, but power was unchanged.

5. Chrysler LA engine - Wikipedia

   en.wikipedia.org/wiki/Chrysler_LA_engine

   The new cylinder heads also featured stud-mounted rocker arms, a change from the shaft-mounted LA arms. This last change was due to the different oiling system of the new engine, as described in the next paragraph. [10] The valve covers on the Magnum have 10 bolts rather than the previous 5, for improved oil sealing. [12]

6. Dustcap - Wikipedia

   en.wikipedia.org/wiki/Dustcap

   A dustcap is a small cover used on the valve stem of a bicycle or car tire to prevent dust or other small particles from entering the valve and damaging it. Dustcaps are usually made from plastic but may occasionally be made of metal. The dustcap is internally threaded and is secured by screwing it onto the end of the stem.

7. Valvetrain - Wikipedia

   en.wikipedia.org/wiki/Valvetrain

   Cutaway of a dual overhead camshaft engine 1969 AMC V8 overhead valve engine. The rocker cover has been removed, so the pushrods, rocker arms, valve springs, and valves are visible. A valvetrain is a mechanical system that controls the operation of the intake and exhaust valves in an internal combustion engine. [1]