Common Engine Classifications Cylinder arrangement Number of cylinders Cooling system type Valve location Camshaft location
Common Engine Classifications Combustion chamber design Type of fuel burned Type of ignition Number of strokes per cycle Number of valves per cylinder Type of aspiration
Cylinder Arrangement Refers to the position of the cylinders in relation to the crankshaft There are five basic cylinder arrangements: inline V-type slant W-type opposed
Cylinder Arrangement
Number of Cylinders Most car and truck engines have either 4, 6, or 8 cylinders Some may have 3, 5, 10, 12, or 16 cylinders Engine power and smoothness are enhanced by using more cylinders
Cylinder Numbering and Firing Order
Cooling System Type There are two types of cooling systems: Liquid cooling system surrounds the cylinder with coolant coolant carries combustion heat out of the cylinder head and engine block Air cooling system circulates air over cooling fins on the cylinders air removes heat from the cylinders
Cooling System Type A. Air cooling B. Liquid cooling
VIN Locations and Decoding Located on the door, on the dashboard, or in the engine compartment