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Overhead camshaft

Index Overhead camshaft

Overhead camshaft, commonly abbreviated to OHC, is a valvetrain configuration which places the camshaft of an internal combustion engine of the reciprocating type within the cylinder heads ("above" the pistons and combustion chambers) and drives the valves or lifters in a more direct manner compared with overhead valves (OHV) and pushrods. [1]

129 relations: Aircraft engine, ALFA Grand Prix, Alfa Romeo, Alfa Romeo 6C, Alfa Romeo Alfasud, Alfa Romeo Twin Cam engine, Alfa Romeo V6 engine, Allies of World War I, Alternator (automotive), Aluminium, Austro-Daimler, Bentley 3 Litre, Bentley 8 Litre, Bentley Speed Six, Bevel gear, Bill Devin, BMW IIIa, Bugatti, Bugatti Type 51, Cam-in-block, Camless piston engine, Camshaft, Car, Central Powers, Combustion chamber, Coventry Climax, Crankshaft, Crosley, Crossflow cylinder head, Cycle World, Cylinder bank, Cylinder head, Ducati Motor Holding S.p.A., Duesenberg, Duesenberg Model A, Ernest Henry (engineer), ETKA, Ferdinand Porsche, Fiat Automobiles, Flat engine, Flat twin engine, Fred Offenhauser, G. N. Georgano, Gear train, Georges Boillot, Glas (company), Glas 1004, Harley-Davidson Twin Cam engine, Harry Miller (auto racing), Hillman Imp, ..., Hispano-Suiza 8, Honda VFR1200F, Indian Chief (motorcycle), Indian Scout (motorcycle), Inline-four engine, Institute of the Motor Industry, Internal combustion engine, Isotta Fraschini, J. G. Parry-Thomas, Jaguar XK120, Jaguar XK6 engine, Kawasaki W650, Kawasaki W800, Leyland Eight, Liberty L-12, London Motorfair, Marc Birkigt, Marr (automobile), Maserati, Maserati Tipo 26, Mass, Maudslay Motor Company, Mercedes D.III, MG M-type, Michigan, MotoCzysz, Motor Sport (magazine), Motorcycle, Multi-valve, Napier Lion, Norton Manx, NSU Prinz, Offenhauser, Overhead valve engine, Panhard, Peugeot, Piston, Poppet valve, Popular Mechanics, Power (physics), Rear-engine design, Reciprocating engine, Reciprocating motion, Riley Motor, Road & Track, Rocker arm, Roller chain, Rolls-Royce Eagle, Sedan (automobile), Shim (spacer), Spark plug, Sports car, Sports Car Club of America, Straight engine, Straight-twin engine, Sunbeam 3-litre, Sunbeam Motor Car Company, Tappet, The Daily Telegraph, Timing belt (camshaft), Toothed belt, Torque, Toyota, Triumph Engineering, Triumph Stag, Types of motorcycles, V engine, V-twin engine, V8 engine, Valvetrain, Variable valve timing, Volkswagen Group, W. O. Bentley, Walter Lorenzo Marr, 1912 French Grand Prix, 1913 French Grand Prix, 1914 French Grand Prix, 1925 24 Hours of Le Mans, 24 Hours of Le Mans. Expand index (79 more) »

Aircraft engine

An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power.

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ALFA Grand Prix

ALFA 40/60 GP or GP (Grand Prix) was a fully working early racing car prototype made by the company now called Alfa Romeo.

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Alfa Romeo

Alfa Romeo Automobiles S.p.A. is a car manufacturer, founded by Frenchman Alexandre Darracq as A.L.F.A. (" Anonima Lombarda Fabbrica Automobili", "Lombard Automobile Factory Company") on 24 June 1910, in Milan.

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Alfa Romeo 6C

The Alfa Romeo 6C name was used on road, race, and sports cars produced between 1927 and 1954 by Alfa Romeo; the "6C" name refers to six cylinders of the car's straight-six engine.

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Alfa Romeo Alfasud

The Alfa Romeo Alfasud (Type 901, 902 and 904) was a small family car, manufactured from 1971 to 1989 by Industria Napoletana Costruzioni Autoveicoli Alfa Romeo-Alfasud S.p.A of Italy, a new company owned by Alfa Romeo and Finmeccanica.

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Alfa Romeo Twin Cam engine

The Alfa Romeo Twin Cam engine is an all-alloy Inline-four engine series produced by Alfa Romeo from 1954 to 1994.

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Alfa Romeo V6 engine

Alfa Romeo's in-house V6 engine (also known as the Busso V6) design made its initial debut in 1979 in the Alfa 6.

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Allies of World War I

The Allies of World War I, or Entente Powers, were the countries that opposed the Central Powers in the First World War.

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Alternator (automotive)

Alternators are used in modern automobiles to charge the battery and to power the electrical system when its engine is running.

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Aluminium or aluminum is a chemical element with symbol Al and atomic number 13.

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Austro-Daimler was an Austrian automaker company, from 1899 until 1934.

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Bentley 3 Litre

The Bentley 3 Litre was a car chassis manufactured by Bentley.

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Bentley 8 Litre

The Bentley 8 Litre was a luxury car based on the largest rolling chassis made by Bentley Motors Limited at Cricklewood, London.

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Bentley Speed Six

The regular Bentley 6½ Litre and the high-performance Bentley Speed Six were rolling chassis in production from 1926 to 1930.

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Bevel gear

Bevel gears are gears where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped.

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Bill Devin

Bill Devin was an American businessperson, automotive entrepreneur and racing driver.

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BMW IIIa was an inline six-cylinder SOHC valvetrain, water-cooled aircraft engine, the first-ever product from BMW GmbH.

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Automobiles Ettore Bugatti was a French car manufacturer of high-performance automobiles, founded in 1909 in the then German city of Molsheim, Alsace by Italian-born Ettore Bugatti.

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Bugatti Type 51

The Type 51 series succeeded the famous Type 35 as Bugatti's premier racing car for the 1930s.

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The cam-in-block valvetrain layout of piston engines is one where the camshaft is placed within the cylinder block, usually beside and slightly above the crankshaft in a straight engine or directly above the crankshaft in the V of a V engine.

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Camless piston engine

A camless or free-valve piston engine is an engine that has poppet valves operated by means of electromagnetic, hydraulic, or pneumatic actuators instead of conventional cams.

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A camshaft is a shaft to which a cam is fastened or of which a cam forms an integral part.

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A car (or automobile) is a wheeled motor vehicle used for transportation.

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Central Powers

The Central Powers (Mittelmächte; Központi hatalmak; İttifak Devletleri / Bağlaşma Devletleri; translit), consisting of Germany,, the Ottoman Empire and Bulgaria – hence also known as the Quadruple Alliance (Vierbund) – was one of the two main factions during World War I (1914–18).

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Combustion chamber

A combustion chamber is that part of an internal combustion engine (ICE) in which the fuel/air mix is burned.

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Coventry Climax

Coventry Climax was a British forklift truck, fire pump, racing, and other speciality engine manufacturer.

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A crankshaft—related to crank—is a mechanical part able to perform a conversion between reciprocating motion and rotational motion.

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Crosley was a small, independent American manufacturer of subcompact cars, bordering on microcars.

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Crossflow cylinder head

A crossflow cylinder head is a cylinder head that features the intake and exhaust ports on opposite sides.

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Cycle World

Cycle World is a motorcycling magazine in the United States.

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Cylinder bank

Internal combustion piston engines (those with more than one cylinder) are usually arranged so that the cylinders are in lines parallel to the crankshaft.

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Cylinder head

In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block.

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Ducati Motor Holding S.p.A.

Ducati Motor Holding S.p.A. is the motorcycle-manufacturing division of Italian company Ducati, headquartered in Bologna, Italy.

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Duesenberg Motors Company (sometimes referred to as "Duesy") was an American manufacturer of race cars and luxury automobiles.

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Duesenberg Model A

The Duesenberg Model A was the first automobile in series production to have hydraulic brakes and the first automobile in series production in the United States with a straight-eight engine.

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Ernest Henry (engineer)

Ernest Henry (1885 in Geneva, Switzerland – 1950 in Paris, France) was a mechanical engineer.

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ETKA is the official electronic parts catalogue (EPC) for Volkswagen Group motor vehicles.

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Ferdinand Porsche

Ferdinand Porsche (3 September 1875 – 30 January 1951) was an automotive engineer and founder of the Porsche car company.

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Fiat Automobiles

Fiat Automobiles S.p.A. (originally FIAT, lit) is the largest automobile manufacturer in Italy, a subsidiary of FCA Italy S.p.A., which is part of Fiat Chrysler Automobiles (previously Fiat S.p.A.). Fiat Automobiles was formed in January 2007 when Fiat reorganized its automobile business, and traces its history back to 1899 when the first Fiat automobile, the Fiat 4 HP, was produced.

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Flat engine

A flat engine is an internal combustion engine with horizontally-opposed cylinders.

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Flat twin engine

A flat-twin is a two-cylinder internal combustion engine with the cylinders on opposite sides of the crankshaft.

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Fred Offenhauser

Fred H. Offenhauser, Jr. (November 11, 1888 – August 17, 1973), was an American automotive engineer and mechanic who developed the Offenhauser racing engine, nicknamed the "Offy", which dominated competition in the Indianapolis 500 race for decades.

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G. N. Georgano

George Nicholas "Nick" Georgano (1932-22 October 2017 Alvis Archive Blog, 24 Oct. 2017 The Society of Automotive History) was a British author, specialising in motoring history.

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Gear train

A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage.

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Georges Boillot

Georges Louis Frederic Boillothttp://www.theaerodrome.com/forum/people/23892-georges-boillot.html (August 3, 1884 – May 19, 1916) was a French Grand Prix motor racing driver and World War I fighter pilot.

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Glas (company)

Hans Glas GmbH is a former German automotive company, which was based in Dingolfing.

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Glas 1004

The Glas 1004 is a small two-door, four-seater automobile produced by Hans Glas GmbH at Dingolfing.

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Harley-Davidson Twin Cam engine

The Harley-Davidson Twin Cam engines are motorcycle engines made by Harley-Davidson since 1998.

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Harry Miller (auto racing)

Harold Arminius Miller (December 9, 1875 – May 3, 1943), commonly called Harry, was an American race car designer and builder who was most active in the 1920s and 1930s.

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Hillman Imp

The Hillman Imp is a small economy car made by the Rootes Group and its successor Chrysler Europe from 1963 until 1976.

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Hispano-Suiza 8

The Hispano-Suiza 8 was a water-cooled V8 SOHC aero engine introduced by Hispano-Suiza in 1914, and the most commonly used engine in the aircraft of the Entente Powers during the First World War.

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Honda VFR1200F

The Honda VFR1200F is the 7th generation Honda sport touring motorcycle from the VF and VFR line motorcycles powered by a transverse mounted V4 engine.

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Indian Chief (motorcycle)

The Indian Chief is a motorcycle that was built by the Hendee Manufacturing Company and the subsequent Motocycle Company from 1922 to the end of the company's production in 1953.

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Indian Scout (motorcycle)

The Indian Scout is a motorcycle built by the Motocycle Company from 1920 to 1949.

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Inline-four engine

The inline-four engine or straight-four engine is a type of inline internal combustion four-cylinder engine with all four cylinders mounted in a straight line, or plane along the crankcase.

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Institute of the Motor Industry

The Institute of the Motor Industry is the professional body for individuals working in the motor industry, internationally.

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Internal combustion engine

An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit.

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Isotta Fraschini

Isotta Fraschini is an Italian motors brand historically known for the production of cars as well as trucks, and engines for marine and aviation use.

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J. G. Parry-Thomas

John Godfrey Parry-Thomas (6 April 1884 – 3 March 1927) was a Welsh engineer and motor-racing driver who at one time held the land speed record.

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Jaguar XK120

The Jaguar XK120 is a sports car manufactured by Jaguar between 1948 and 1954.

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Jaguar XK6 engine

The Jaguar XK6 dual overhead camshaft (DOHC) inline 6-cylinder engine was introduced by Jaguar Cars in 1949 and manufactured through 1992.

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Kawasaki W650

The Kawasaki W650 is a retro standard motorcycle marketed by Kawasaki for model years 1999-2007 and superseded by the Kawasaki W800.

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Kawasaki W800

The Kawasaki W800 is a parallel twin motorcycle produced by Kawasaki from 2011 to 2016.

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Leyland Eight

The Leyland Eight was a luxury car produced by Leyland Motors from 1920 to 1923.

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Liberty L-12

The Liberty L-12 was an American 27-litre (1,649 cubic inch) water-cooled 45° V-12 aircraft engine of designed for a high power-to-weight ratio and ease of mass production.

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London Motorfair

London Motorfair (London Motor Show) was an alternative London auto show to the British International Motor Show, that was held at Earls Court biannually from 1977 to 1999.

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Marc Birkigt

Marc Birkigt (8 March 1878, Geneva – 15 March 1953, Versoix) was a Swiss engineer who moved to Barcelona, Spain when he was hired as an engineer by Emilio de la Cuadra, founder of Hispano-Suiza automobiles.

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Marr (automobile)

The Marr Auto Car was an automobile built in Elgin, Illinois by the Marr Auto Car Company from 1903-1904.

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Maserati is an Italian luxury vehicle manufacturer established on 1 December 1914, in Bologna.

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Maserati Tipo 26

The Maserati Tipo 26 was a model of Grand Prix racing car and was the first car built by Italian manufacturer Maserati, for a total of 11 examples, between 1926 and 1932.

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Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.

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Maudslay Motor Company

The Maudslay Motor Company was a British vehicle maker based in Coventry.

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Mercedes D.III

The Mercedes D.III, or F1466 as it was known internally, was a six-cylinder, SOHC valvetrain liquid-cooled inline aircraft engine built by Daimler and used on a wide variety of German aircraft during World War I. The initial versions were introduced in 1914 at 160 hp, but a series of changes improved this to 170 hp in 1917, and 180 by mid-1918.

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MG M-type

The MG M-type (also known as the MG Midget) is a sports car that was produced by the MG Cars from April 1929 to 1932.

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Michigan is a state in the Great Lakes and Midwestern regions of the United States.

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MotoCzysz is an American motorcycle company based in Portland, Oregon that intended to compete in MotoGP.

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Motor Sport (magazine)

Motor Sport is a magazine founded in the United Kingdom in 1924"Racing Magazines ", Magazine-Agent.com, 2009, webpage:.

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A motorcycle, often called a bike, motorbike, or cycle, is a two-> or three-wheeled motor vehicle.

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In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves.

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Napier Lion

The Napier Lion was a 12-cylinder 'broad arrow' W12 configuration aircraft engine built by D. Napier & Son from 1917 until the 1930s.

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Norton Manx

The Norton Manx or Manx Norton is a British racing motorcycle that was made from 1947 to 1962 by Norton Motors Ltd.

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NSU Prinz

The NSU Prinz (Prince) is an automobile which was produced in West Germany by the NSU Motorenwerke AG from 1958 to 1973.

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The Offenhauser Racing Engine, or Offy, is a racing engine design that dominated American open wheel racing for more than 50 years and is still popular among vintage sprint and midget car racers.

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Overhead valve engine

An overhead valve engine (OHV engine), or "pushrod engine", is a reciprocating piston engine whose poppet valves are sited in the cylinder head.

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Panhard is a French manufacturer of light tactical and military vehicles.

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Peugeot is a French automotive manufacturer, part of Groupe PSA.

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A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms.

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Poppet valve

A poppet valve (also called mushroom valve) is a valve typically used to control the timing and quantity of gas or vapour flow into an engine.

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Popular Mechanics

Popular Mechanics is a classic magazine of popular science and technology.

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Power (physics)

In physics, power is the rate of doing work, the amount of energy transferred per unit time.

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Rear-engine design

In automobile design, a rear-engine design layout places the engine at the rear of the vehicle.

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Reciprocating engine

A reciprocating engine, also often known as a piston engine, is typically a heat engine (although there are also pneumatic and hydraulic reciprocating engines) that uses one or more reciprocating pistons to convert pressure into a rotating motion.

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Reciprocating motion

Reciprocating motion, also called reciprocation, is a repetitive up-and-down or back-and-forth linear motion.

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Riley Motor

RileyInformation extracted from Notice issued in compliance with the Regulations of the Committee of The Stock Exchange, London (with regard to the issue of 150,000 Preference Shares of £1 each on 17 January 1934).

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Road & Track

Road & Track (R&T) is an American automotive enthusiast magazine.

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Rocker arm

A rocker arm (in the context of an internal combustion engine of automotive, marine, motorcycle and reciprocating aviation types) is an oscillating lever that conveys radial movement from the cam lobe into linear movement at the poppet valve to open it.

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Roller chain

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.

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Rolls-Royce Eagle

The Rolls-Royce Eagle was the first aircraft engine to be developed by Rolls-Royce Limited.

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Sedan (automobile)

A sedan (American, Canadian, Australian, and New Zealand English) or saloon (British, Irish and Indian English) is a passenger car in a three-box configuration with A, B & C-pillars and principal volumes articulated in separate compartments for engine, passenger and cargo.

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Shim (spacer)

A shim is a thin and often tapered or wedged piece of material, used to fill small gaps or spaces between objects.

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Spark plug

A spark plug (sometimes, in British English, a sparking plug, and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine.

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Sports car

A sports car, or sportscar, is a small, usually two-seater, two-door automobile designed for spirited performance and nimble handling.

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Sports Car Club of America

The Sports Car Club of America (SCCA) is an American automobile club and sanctioning body supporting road racing, rallying, and autocross in the United States.

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Straight engine

The straight or inline engine is an internal-combustion engine with all cylinders aligned in one row and having no offset.

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Straight-twin engine

A straight-twin engine, also known as straight-two, inline-twin, vertical-twin, or parallel-twin is a two-cylinder piston engine which has its cylinders arranged side by side and its pistons connected to a common crankshaft.

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Sunbeam 3-litre

The Sunbeam 3-litre is a heavy sports car introduced by Sunbeam in October 1925 at the London Motor Show, and was offered from 1926 until 1930.

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Sunbeam Motor Car Company

Sunbeam Motor Car Company Limited was a British motor car manufacturer with its works at Moorfields in Blakenhall, a suburb of Wolverhampton in the county of Staffordshire, now West Midlands.

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A tappet is a projection that imparts a linear motion to some other component within a mechanism.

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The Daily Telegraph

The Daily Telegraph, commonly referred to simply as The Telegraph, is a national British daily broadsheet newspaper published in London by Telegraph Media Group and distributed across the United Kingdom and internationally.

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Timing belt (camshaft)

A timing belt, timing chain or cambelt is a part of an internal combustion engine that synchronizes the rotation of the crankshaft and the camshaft(s) so that the engine's valves open and close at the proper times during each cylinder's intake and exhaust strokes.

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Toothed belt

A toothed belt; timing belt; cogged belt; cog belt; or synchronous belt is a flexible belt with teeth moulded onto its inner surface.

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Torque, moment, or moment of force is rotational force.

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, usually shortened to Toyota, is a Japanese multinational automotive manufacturer headquartered in Toyota, Aichi, Japan.

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Triumph Engineering

Triumph Engineering Co Ltd was a British motorcycle manufacturing company, based originally in Coventry and then in Solihull at Meriden.

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Triumph Stag

The Triumph Stag is a 2+2 sports tourer sold between 1970 and 1978 by the British Triumph Motor Company, styled by Italian designer Giovanni Michelotti.

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Types of motorcycles

There are many systems for classifying types of motorcycles, describing how the motorcycles are put to use, or the designer's intent, or some combination of the two.

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V engine

A V engine, or Vee engine is a common configuration for an internal combustion engine.

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V-twin engine

A V-twin engine, also called a V2 engine, is a two-cylinder internal combustion engine where the cylinders are arranged in a V configuration.

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V8 engine

A V8 engine is an eight-cylinder V configuration engine with the cylinders mounted on the crankcase in two sets (or banks) of four, with all eight pistons driving a common crankshaft.

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A valvetrain or valvetrain is a mechanical system that controls operation of the valves in an internal combustion engine, whereby a sequence of components transmits motion throughout the assembly.

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Variable valve timing

In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions.

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Volkswagen Group

Volkswagen AG, known internationally as the Volkswagen Group, is a German multinational automotive manufacturing company headquartered in Wolfsburg, Lower Saxony, Germany.

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W. O. Bentley

Walter Owen Bentley, MBE (16 September 1888 – 13 August 1971) was an English engineer who designed engines for cars and aircraft, raced cars and motorcycles, and founded Bentley Motors Limited in Cricklewood near London.

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Walter Lorenzo Marr

Walter Lorenzo Marr was an Automotive pioneer and talented engineer who worked with David Dunbar Buick perfecting the first Buick production automobiles.

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1912 French Grand Prix

The 1912 French Grand Prix was a Grand Prix motor race held at Dieppe on 25–26 June 1912.

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1913 French Grand Prix

The 1913 French Grand Prix was a Grand Prix motor race held at Amiens on 12 July 1913.

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1914 French Grand Prix

The 1914 French Grand Prix was a Grand Prix motor race held at Lyon on 4 July 1914.

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1925 24 Hours of Le Mans

The 1925 24 Hours of Le Mans, officially 3rd 24 Hours Grand Prix of Endurance took place on 20 and 21 June 1925.

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24 Hours of Le Mans

The 24 Hours of Le Mans (24 Heures du Mans) is the world's oldest active sports car race in endurance racing, held annually since near the town of Le Mans, France.

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[1] https://en.wikipedia.org/wiki/Overhead_camshaft

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