Engine blocks, contain all of the major components that make up the bottom end of a motor. This is where the crankshaft spins, and the pistons move up and down in the cylinder bores.
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On some engine designs, it also holds the camshaft. Engine blocks, contains all of the major components where the combustion process takes place in a reciprocating engine.
Engine blocks are usually made from an aluminium alloy (cast iron in older engines). It houses the cylinders and their components, the water cooling system and the crankcase. Its metal construction gives it strength and the ability to transmit heat from the combustion processes to the cooling system. The water jacket, is used to cool the water before it is pumped back into the engine block.
Consequently, Without cooling, the engine quickly becomes less efficient and would ultimately seize. Also, The water jacket surrounds the engine’s cylinders, of which contain the pistons. When the cylinder head is in place (it secures to the engine block), together with the camshaft, the pistons move up and down within the cylinders and turn the crankshaft, which ultimately drives the wheels. Finally, The oil pan sits at the base of the engine block.