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 is ...

Oil pressure Oil pressure is an important factor in the longevity of most internal combustion engines. With a forced lubrication system (invented by Frederick Lanchester), oil is ...

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 camsh ...

Hypereutectic piston cosworth forged pistons A hypereutectic piston is an internal combustion engine piston cast using a hypereutectic alloy–that is, a metallic alloy which has a ...

Piston rings Exlained car piston rings Most automotive pistons have three rings: The top two while also controlling oil are primarily for compression sealing (compression rings); ...

How a Car Radiator Works Radiators are the heart of a cars cooling system, without them there would be no way to keep an internal combustion engine from overheating to the point o ...

Engine Roller rocker explained A roller rocker is a rocker assembly that uses bearings instead of metal sliding on metal. A cam/rocker assembly uses a normal cam, but the roller-t ...

Starter motor The other major electrical component in your car's electrical system is used only a few times a day but is the single largest power user and most critical to your ca ...

Engine Stroke ratio In a reciprocating piston engine, the stroke ratio, defined by either bore/stroke ratio or stroke/bore ratio, is a term to describe the ratio between cylinder ...