This article is part of a 6-part series on engine lubrication systems. Part 5 covers vane-type and dual-rotor pump designs, the critical clearances that affect pump output, how the relief…

This article is part of a 6-part series on engine lubrication systems. Part 4 covers how oil pumps create flow and pressure, the different pump designs including gear, rotary, internal…

This article is part of a 6-part series on engine lubrication systems. Part 3 explains how the hydrodynamic wedge lifts a rotating shaft off its bearings, the three basic ways…

This article is part of a 6-part series on engine lubrication systems. Part 2 covers how the API classifies oils for gasoline and diesel engines, the standard cross-reference table, and…

This article is part of a 6-part series on engine lubrication systems. Part 1 covers the basic theory of friction, the role of oil in reducing wear and managing heat,…

This article is part of a 5-part series on engine cooling system theory. Part 5 covers how the radiator cap pressurizes the system to raise the boiling point, how the…

This article is part of a 5-part series on engine cooling system theory. Part 4 covers how the thermostat controls coolant flow, how hoses and clamps maintain system pressure, and…

This article is part of a 5-part series on engine cooling system theory. Part 3 covers how the radiator removes heat from the coolant, how fans and airflow management increase…

This article is part of a 5-part series on engine cooling system theory. Part 2 covers the design and operation of liquid cooling systems, including coolant properties, water pump architecture,…

This article is part of a 5-part series on engine cooling system theory. Part 1 covers the fundamental thermal principles that govern engine cooling, including heat distribution, operating temperature objectives,…