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  2. Valve guide - Wikipedia

    en.wikipedia.org/wiki/Valve_guide

    In the 1980s, many U.S. production engine remanufacturers began reaming valve guides, rather than replacing them, as part of their remanufacturing process. They found that by reaming all the valve guides in a head to one standard size (typically 0.008 in. diametrically oversized), and installing remanufactured engine valves having stems that are also oversized, a typical engine head can be ...

  3. Talk:POL valve - Wikipedia

    en.wikipedia.org/wiki/Talk:POL_valve

    Acme valves are compatible with grills that use POL valves as well. " The most current and common type of valve being used on propane tanks is the Overfill Prevention Device (OPD) valve. " {undated} Further preparatory notes: terms: "A tank is not a cylinder": a tank is permanently mounted & connected by a licensed professional, with a check ...

  4. Cylinder valve - Wikipedia

    en.wikipedia.org/wiki/Cylinder_valve

    an inlet or exhaust valve in a piston engine or compressor; a direct coupled valve to control the flow of gas into or out of a gas storage cylinder. a scuba cylinder valve to control the flow of gas into or out of the diving cylinders of a scuba set; a valve to control flow of the actuating fluid into or out of a hydraulic or pneumatic cylinder

  5. 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]

  6. Multi-valve - Wikipedia

    en.wikipedia.org/wiki/Multi-valve

    A cylinder head of a four valve Nissan VQ engine engine. A multi-valve or multivalve engine is one where each cylinder has more than two valves (an intake, and an exhaust).A multi-valve engine has better breathing, and with more smaller valves (having less mass in motion) may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power.

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  8. GM High Feature engine - Wikipedia

    en.wikipedia.org/wiki/GM_High_Feature_engine

    Variable exhaust valve timing (the LW2 engine only had variable intake valve timing) Specially-developed fuel injectors. New pistons with pentroof-style centre-domes and valve eyelets for a higher compression ratio of 12.2:1 (compared to 10.2:1 for the dual fuel engine). A new fuel rail and a new LPG fuel filter. Applications:

  9. Cox model engine - Wikipedia

    en.wikipedia.org/wiki/Cox_model_engine

    Cox also sold the muffler, cylinder and high comp. glow head components of the QZ as a Muffler Conversion Kit (Cat#495) for $2.98. 1976 QRC (Cat#450-1 - manufactured 1976–1996) The QRC was a modified Babe Bee engine that had a muffler and larger (8cc) fuel tank.