valve in head
11valve port — valve port, the opening uncovered by a valve in the cylinder block or head of a gasoline engine …
12Valve 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… …
13Valve — 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… …
14Valve seat — The valve seat in an internal combustion gasoline or diesel engine is the surface against which an intake or an exhaust valve rests during the portion of the engine operating cycle when that valve is closed. The valve seat is a critical component …
15Valve timing — In a piston engine, the valve timing is the precise timing of the opening and closing of the valves.In four stroke cycle engines and some two stroke cycle engines, the valve timing is controlled by the camshaft. It can be varied by modifying the… …
16Valve stem — For the shaft which transmits motion from the outside to the inside of a valve, see Valve#Stem. A valve stem is a self contained valve which opens to admit gas to a chamber (such as air to inflate a tire), and is then automatically closed and… …
17valve guide — The cylindrical hole which is located in the cylinder head or block through which the stem of the poppet valve passes. It is designed to keep the valve in proper alignment. It also serves as a bearing surface. Some guides are pressed into place… …
18valve grinding compound — An abrasive compound used for refacing valve seats. The suction cup is placed on the valve head and the valve is pressed into the seat; turning the handle between one s hands will grind the valve into its seat; always use with grinding paste. Not …
19valve seat face — An annular part of a valve head located at the valve seat of the cylinder head …
20valve seat ring — A ring shaped insert of a harder metal than that of the cylinder head; the use of valve seat inserts dispenses with the need for lead in the fuel to act as a lubricant between the valve head and seat …
