Tech Guide
Maintenance Guides. Service repairs for Classic & modern cars. Manuals (registered users only).
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Cooling System Thermostat works
RegisteredTechnical Guides
How a Car Cooling System Thermostat Works Inside your cars engine, thousands of controlled explosions called combustion events caused by igniting fuel-air mixture inside the ...
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Core plug
RegisteredTechnical Guides
Engine Core plugs Core plugs, are usually metal cups that fill the sand casting core holes found on water-cooled internal combustion engines. They are often wrongly called Welsh ...
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Cornering (Lateral) force explained
RegisteredTechnical Guides
Car Cornering (Lateral) force explained Tire tread element displacement and the resulting cornering force Cornering force or side force is the lateral (i.e. parallel to the road ...
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Cosworth BDA engine (1969-)
Cosworth BDA engines Cosworth solidified its association with Ford in 1969, by developing a double overhead camshaft (DOHC) 16-valve inline four-cylinder engine for road use in ...
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Cosworth BOA FBA FBC V6 Engine (1991-)
The Cosworth FBA and FBC V6 Engine "BOA" The FBA and FBC engines were found in the Ford Granada and Ford Scorpio Ultima. The FBA came first in 1991 also known as the 'BOA', it ...
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Cosworth DFV Engine (1960s)
Cosworth DFV Engine The DFV is an internal combustion engine that was originally produced by Cosworth for Formula One motor racing. Named Four Valve because of the four valves ...
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Cosworth GBA V6 Engine (1986-1987)
The Cosworth GBA V6 Engine Cosworth experimented with turbocharged BD derivatives, before settling on an all-new turbocharged 1,500 cc (91.5 cu in) V6 engine to be badged as the ...
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Cosworth WAA 190E Engine (1984-1989)
The Cosworth WAA 190E 2.3-litre Engine Cosworth’s involvement with Mercedes-Benz came with moves in the mid-1980s from the German manufacturer to re-enter motorsport the new W201 ...
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Cosworth YB Engine (1986-)
Ford Cosworth YB series Engine The YB series of 1,993 cc (121.6 cu in) engines are based on the older Pinto engine block, and were introduced in the road-going Ford Sierra RS ...
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Coventry Climax FPE Engine
Registered
Coventry Climax FPE 'Godiva' Engine Commission Sportive Internationale announced in 1952 that 2.5L naturally aspirated engines would be a part of Formula One regulation starting ...
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Coventry Climax FPF Engine
Coventry Climax FPF Engine The FPF was a double overhead cam all aluminium four cylinder that was essentially half of the FPE V8 engine, which was designed as a pure racing ...
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Coventry Climax FW Engine
Coventry Climax FW Engine Within the complicated corporate lineage, the reputation of Coventry Climax as the top-rate engine designer/builder is largely credited to Walter Hassan ...
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Coventry Climax FWM Engine
Coventry Climax FWM engine The FW was designed in response to the British Government's Defence Ministry (MoD) requisition outline issued in 1950, specifying a water pump and ...
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Coventry Climax History
Coventry-Simplex Climax History 1903 to 1986 Former type Limited company Industry Speciality machinery and engine manufacture Fate Purchased by Jaguar Cars, businesses merged by ...
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Coventry Climax Jaguar V12
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Coventry Climax Jaguar V12 Engine Having designed and developed the successful Jaguar XK engine under the guidance of William Heynes at SS Cars Ltd, Walter Hassan and the team ...
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Crank Journals (pins)
RegisteredTechnical Guides
Engine Crank Journals (pins) explained Crankpins highlighted in blue In a reciprocating engine, the crankpins, also known as crank journals are the journals of the big end ...
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Crankcase
RegisteredTechnical Guides
Engine Crankcase In an internal combustion engine of the reciprocating type, the crankcase is the housing for the crankshaft. The enclosure forms the largest cavity in the engine ...
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Crankcase ventilation & PCV valve
RegisteredTechnical Guides
Engine Crankcase ventilation system & (PCV) valve Car pcv valve A crankcase ventilation system is a way for gases to escape in a controlled manner from the crankcase of an ...
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Crankshaft
RegisteredTechnical Guides
Engine Crankshaft explained The crankshaft, sometimes abbreviated to crank, is the part of an engine that translates reciprocating linear piston motion into rotation. To convert ...
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Crankshaft Crossplane
RegisteredTechnical Guides
V8 Crossplane crankshaft The crossplane or cross-plane is a crankshaft design for V8 engines with a 90° angle between the cylinder banks. The crossplane crankshaft is the ...
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Crankshaft deep rolling
RegisteredTechnical Guides
Crankshaft deep rolling Deep rolling is a method of cold work deformation and burnishing of internal combustion engine crankshaft journal fillets to increase durability and ...
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Crankshaft position Sensor
RegisteredTechnical Guides
Crankshaft position sensor A crank position sensor is an electronic device used in an internal combustion engine to monitor the position or rotational speed of the crankshaft. ...
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Crossflow cylinder head (1960-)
Registered
Crossflow cylinder head A crossflow cylinder head is a cylinder head that features the intake and exhaust ports on opposite sides. The gases can be thought to flow across the ...
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Cruise control
RegisteredTechnical Guides
Cruise control explained Cruise control (sometimes known as speed control or autocruise, or tempomat in some countries) is a system that automatically controls the speed of a ...
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Cummins B Type 6BT engine (1984-1991)
Registered
Cummins B series Type 6BT engine Cummins engine Cummins B-Series, Type 6BT Production period: since 1984 Manufacturer: Cummins engine How it works: diesel Engine Type: straight ...
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CV Axle Joint
RegisteredTechnical Guides
How a Car CV Axle Joint Works A CV joint or constant velocity joint is a type of mechanism that connects two fixed rotating shafts. This joint allows the shafts to be connected ...
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Cylinder
RegisteredTechnical GuidesEngine Cylinder explained A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders are commonly arranged ...
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Cylinder bank
RegisteredTechnical Guides
Engine Cylinder bank explained Internal combustion piston engines (those with more than one cylinder) are usually arranged so that the cylinders are in lines parallel to the ...
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Cylinder block
RegisteredTechnical Guides
Engine Cylinder block A cylinder block is an integrated structure comprising the cylinder(s) of a reciprocating engine and often some or all of their associated surrounding ...
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Cylinder Bore & Pitch
RegisteredTechnical Guides
Cylinder Bore & Pitch Bore is the diameter measurement of the cylinders in a piston engine. Engine displacement is calculated by: Bore pitch is the distance between the ...
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Cylinder Compression Test
RegisteredTechnical Guides
Car Engine Cylinder Compression Test Engine Cylinder Compression Gauge An engine depends on an equal amount of compression in each cylinder to operate smoothly. If poor ...
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Cylinder head
RegisteredTechnical Guides
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. It closes in ...
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Cylinder head porting
RegisteredTechnical Guides
Car Cylinder head porting explained Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve the quality ...
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Cylinder head Reverse-flow
RegisteredTechnical Guides
Engine Reverse-flow cylinder head In engine technology, a reverse-flow or non-crossflow cylinder head is one that locates the intake and exhaust ports on the same side of the ...
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Dacia ECU upgrades
RegisteredTechnical Guides
ECU Remapping for Dacia Guide to possible BHP and Torgue improvement, on Dacia cars with ECU remapping or upgrade. Model Variant Original BHP Tuning Performance Logan 1.4 75 BHP ...
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Daewoo ECU upgrades
Technical Guides
ECU Remapping for Daewoo Guide to possible BHP and Torgue improvement, on Daewoo cars with ECU remapping or upgrade. Model Variant Original BHP Tuning Performance Aranos 2.0 104 ...
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Daewoo Wheel PCD & Offsets Guide
RegisteredTechnical Guides
Daewoo Wheel PCD & Offsets Size Guide Model Year PCD Offset Bore Espero 95 to 01 4×100 35 to 45 56.6 Kalos 03 on 4×100 35 to 45 56.6 Lacetti 04 on 4×114 35 to 45 56.6 Laganza 97 ...
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Daihatsu A engines (1976-1986)
RegisteredDaihatsu A engines Make Daihatsu Motor manufacturing period April 1976 - March 1986 ( for AB engine) type In-line 2-cylinder SOHC 4-valve (2 valves per cylinder) displacement ...
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Daihatsu C engine (1977-1998)
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Daihatsu CB engine Make Daihatsu Motor manufacturing period October 1977 - August 1998 type In-line 3-cylinder SOHC 6-valve In-line 3-cylinder DOHC 12-valve Fuel Petrol ...
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Daihatsu CL engine (1983-1998)
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Daihatsu CL diesel engine Make Daihatsu Motor manufacturing period 1983 - 1998 type In-line 3-cylinder SOHC 6-valve Fuel diesel displacement 0.99L The Daihatsu CL ...
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Daihatsu EB ED engine (1985-2014)
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Daihatsu EB ED engine Make Daihatsu Motor manufacturing period July 1985 - June 2014 type In-line 3-cylinder SOHC 6-valve In-line 3-cylinder SOHC 12-valve In-line ...
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Daihatsu EF engine (1990-2015)
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Daihatsu EF engine make Daihatsu Motor manufacturing period February 1990 - November 2015 type In-line 3-cylinder SOHC belt-driven 6-valve In-line 3-cylinder SOHC ...
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Daihatsu HC engine (1988-2000)
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Daihatsu HC type engine Make Daihatsu Motor manufacturing period January 1988 - March 2000 type In-line 4-cylinder SOHC 16-valve fuel petrol displacement 1.3L The Daihatsu HC ...
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Daihatsu HD engine (1989-2002)
Registered
Daihatsu HD engine make Daihatsu Motor manufacturing period May 1989 - July 2002 type In-line 4-cylinder SOHC 16-valve displacement 1.6L Inner Diameter x Stroke 76.0mm×87.6mm ...
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Daihatsu K3 engine (2000-)
Daihatsu K3 engine (2000-) Make Daihatsu Industry Years April 2000- Type Inline 4-cylinder DOHC 16 valve Displacement 1.3L Fuel Petrol (gasoline) The Daihatsu K3 engine is a 1.3 ...
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