Check injection Fuel Pump and Regulator Test Typical Bosch injection System Your car's engine depends on constant fuel under pressure to supply the fuel injection system ...

How to Replace a car Electric Fuel Pump The fuel delivery system is vital to the car's engine performance. The engine is designed to operate on a specific fuel system pressure. ...

Engine Glowplug A glowplug (alternatively spelled as glow plug or glow-plug) is a heating device used to aid starting diesel engines. The glow plug is a pencil-shaped piece of ...

H engine An H engine (or H-block) is an engine configuration in which the cylinders are aligned so that if viewed from the front, they appear to be in a vertical or horizontal ...

Head gasket types A head gasket is a gasket that sits between the engine block and cylinder head(s) in an internal combustion engine. Its purpose is to seal the cylinders to ...

How a Car Heater Works Typical Car heater system Before trying to fix your car's heater, you should understand how your car heater system works. On this page, an explanation of ...

How a engine cam works A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion or vice-versa. It is often a ...

Hybrid Synergy Drive explained Hybrid Synergy Drive (HSD) designates a set of hybrid car technologies developed by Toyota and used in the company's Yaris, Auris, Prius, ...

Hot-tube ignitor A hot-tube ignitor was an early device that fit onto the cylinder head of an internal-combustion engine, used to ignite the compressed fuel/air mixture by means ...

Imperial to Metric Length Chart. Guide to convert Lengths, foot to meters, feet to miles . Table of length equivalent units Unit Relative to previous Feet Millimetres Metres ...

Imperial to Metric Volume Chart In 1824, the various different gallons in use in the British Empire were replaced by the imperial gallon, a unit close in volume to the ale ...

4-bolt main Explained A 4-bolt main refers to the number of bolts attaching the main bearing caps to the block of an internal combustion engine. Four bolt mains are considered ...

Metric prefixes words Explained Some you will be familiar with others not so, here we explain then all with examples of use. Yotta- Yotta is the largest unit prefix in the ...

Multi-groove belts A multi-groove or polygroove belt is made up of usually 5 or 6 "V" shapes alongside each other. This gives a thinner belt for the same drive surface, thus it ...

Engine Oil filter Types 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 ...

Oil pump The oil pump in an internal combustion engine circulates engine oil under pressure to the rotating bearings, the sliding pistons and the camshaft of the engine. This ...

Overhead valve (OHV) Oldsmobile Rocket V8 engine An overhead (OHV) engine, also informally called pushrod engine or I-head engine, is a type of piston engine that places the ...

Car Piston types Car Piston assembly A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar ...

Mean piston speed The mean piston speed is the average speed of the piston in a reciprocating engine. It is a function of stroke and RPM. There is a factor of 2 in the equation ...

Pneumatic valve springs Pneumatic valve springs are metal bellows filled with compressed air used as an alternative to the metal wire springs used to close valves in high-speed ...

How to Replace Radiator Hoses Before inspecting your radiator hoses, make sure your vehicle engine is cold. You don’t want to inspect your hoses when they are hot. Most radiator ...