valve oil seal

A neoprene rubber ring that is placed in a groove in the valve stem to prevent excess oil entering the area between the stem and the guide. There are other types of these seals.

Dictionary of automotive terms. 2015.

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  • valve stem seal — The oil seal between the valve and the cylinder head which prevents excessive oil leakage from the top of the cylinder head into the combustion chamber …   Dictionary of automotive terms

  • oil seal — A device used to prevent oil leakage past a certain area. See grease seal valve oil seal …   Dictionary of automotive terms

  • Valve oil — is a lubricant for valves of brass instruments. It is typically comprised mostly of mineral oil with a small amount of other ingredients. Use of valve oil Besides lubricating the moving parts of the valve, valve oil provides corrosion protection… …   Wikipedia

  • seal — [1] A flexible ring, disc or washer that prevents the passage of liquid, air, gas or dirt. [2] To prevent the passage of liquid, air, gas, etc. by means of a seal or sealant (e.g., on seams, joints, flanges). [3] to coat a surface (e.g., when… …   Dictionary of automotive terms

  • valve — A device used to either open or close an opening to allow or prevent the flow of a liquid or gas from one place to another. There are many different types. See ABS relay valve accumultor valve air valve carburetor air control valve air gulp valve …   Dictionary of automotive terms

  • Valve guide — In most types of reciprocating engines, a valve guide is provided for each poppet valve in the cylinder head. Along with the valve spring, it serves to positively locate the valve so that it may make proper contact with the valve seat. A valve… …   Wikipedia

  • Oil pump (internal combustion engine) — This article is about a part in an internal combustion engine. For other uses, see Oil pump. Oil circulation system …   Wikipedia

  • Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …   Wikipedia

  • Oil filter — Spin on oil filter on a Saab 9 5 An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil. Oil filters are used in many different types of hydraulic machinery. A chief use of… …   Wikipedia

  • Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… …   Wikipedia

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