Crankcase : A crankcase is another term for an engine block. The crankcase is designed to hold your crankshaft within your engine. Typical crankcases also have cylinder bores for your pistons and rods that connect to your crankshaft. Other crankcases are split design bearing there are two halves to the crankcase designed to split in the point of center of the crankshaft bore. These crankcase halves are line bored which means they are not interchangeable without line boring the crankshaft bore. Some of these designs may include a upper crankcase and a lower crankcase half. Other crankcases may include a right and left side crankcase design.
A crankcase is designed for strength and is composed of a metal such as aluminum or cast iron. The crankcase usually will have holes for oil to travel within the crankcase. Other crankcases will have fins for air cooling or water passages for water cooling.
Most crankcases do not go bad, however they may need to be resealed from time to time. A crankcase may also crack in some cases which include extreme overheating or freezing. Replacing a crankcase usually is done by simply replacing the entire engine. In case of doubt, have Guy’s Automotive check, repair, reseal or replace your crankcase by making an appointment today.