Piston pin bush
The piston pin bush, also known as the gudgeon pin bush, is a critical component in an internal combustion engine. It is a cylindrical sleeve that fits into the small end of the connecting rod and provides a bearing surface for the piston pin (or gudgeon pin) to rotate. This component is essential for the…
Piston ring and circlip
Piston ring and circlip , initial-scale=1.0″> Piston Ring and Circlip Piston Ring A piston ring is a split ring that fits into a groove on the outer diameter of a piston in an internal combustion engine or similar machinery. Piston rings are critical components in engines, serving several key functions: Sealing the Combustion Chamber: Piston…
Piston Rings
Piston rings are crucial components in internal combustion engines, playing a vital role in maintaining engine efficiency and performance. They are circular metal rings that fit into grooves on the outer diameter of a piston. Typically, a piston will have multiple rings, each serving a specific function. Basic Function Sealing the Combustion Chamber: Piston rings…
Pitman arm
The Pitman arm is a crucial component in the steering system of many vehicles, particularly those with a recirculating ball steering gear. It is a part of the linkage that converts the rotational motion of the steering wheel into the linear motion needed to turn the wheels of the vehicle. Basic Function The primary function…
Planetary gear set
Planetary gear set Planetary Gear Set A planetary gear set, also known as an epicyclic gear train, is a complex system of gears consisting of one or more outer gears (planet gears) revolving around a central gear (sun gear). Typically, a planetary gear set also includes a ring gear that meshes with the planet gears.…
Platinum/Iridium Spark Plug
Platinum/Iridium Spark Plug Platinum/Iridium Spark Plug Basic Function The primary function of a spark plug is to deliver electric current from the 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. The Platinum/Iridium spark plug is a…
PCM – Powertrain Control Module
The Powertrain Control Module (PCM) is a critical component in modern vehicles, responsible for managing the engine and transmission systems. It is essentially the vehicle’s brain, integrating the functions of the Engine Control Unit (ECU) and the Transmission Control Unit (TCU) to optimize performance, fuel efficiency, and emissions. Basic Function The PCM monitors various sensors…
Poppet valve
A poppet valve is a type of valve typically used to control the timing and quantity of gas or vapor flow into an engine. It consists of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft known as a valve stem. The valve is…
PCM (Powertrain Control Module)
The Powertrain Control Module (PCM) is a critical component in modern vehicles, responsible for managing the engine and transmission systems. It is essentially the vehicle’s brain, ensuring optimal performance, fuel efficiency, and emissions control. Basic Function The PCM integrates the functions of the Engine Control Unit (ECU) and the Transmission Control Unit (TCU). It monitors…
Positive Crankcase Ventilation (PCV) System
The Positive Crankcase Ventilation (PCV) system is a component in modern internal combustion engines. It is designed to reduce harmful emissions and improve engine efficiency by recycling gases that escape from the engine’s crankcase. Basic Function The primary function of the PCV system is to manage the blow-by gases that are produced during the combustion…