The function of the crankshaft is to translate the linear reciprocating motion of a pistons into the rotational motion required by the automobile. This is accomplished by connecting the pistons to the crank throws, which are offset from the central axis of the crankshaft to create a rotation about that axis.Continue Reading
Each crankshaft is designed for a specific engine. Using the example of a four-stroke engine, the crankshaft has four crank throws for connecting the four pistons and is generally connected to the flywheel. During the combustion cycle of the engine, these crank throws act as a lever arm for the piston to push, thereby creating rotational motion. This is similar to pushing on the end of a wrench when turning a bolt. When the crankshaft completes its rotation, the crank throw will return the piston to the top of its cylinder.
In addition to the crank throws, the crankshaft is also comprised of carefully designed weights and balances to reduce engine vibration. Either end of the crankshaft is connected to the engine block by the crank bearings. To smooth out the power delivery of the engine between the combustion cycles of the pistons, a fly wheel is also incorporated onto the crankshaft.Learn more about Car Parts & Maintenance
As of 2015, Chevrolet's ZZ572/720R Deluxe Dyno big-block engine is a cast-iron V8 with four-bolt main caps, a forged-steel crankshaft, forged-steel shot peened connecting rods and forged aluminum pistons. The engine has a 572-cubic-inch displacement with a 4.560-inch by 4.375-inch bore/stroke ratio. The cylinder heads are aluminum rectangular port with 118-cubic-centimeter chambers, the stainless steel intake valves are 2.250 inches and the exhaust valves are 1.880 inches. The engine has a mechanical roller camshaft and a 12-to-1 compression ratio.Full Answer >
An engine rebuild is an extensive repair that requires installing all the internal components of an engine including the oil pump, crankshaft and pistons. Mild rebuilds are usually the result of a damaged internal component while a full-on re-manufactured engine completely refurbishes every part on the block.Full Answer >
The crankshaft takes the piston from an up and down motion and changes it to a rotating motion. The crankshaft is near the bottom of the engine.Full Answer >
A crankshaft is a component in car engines that converts linear motion into rotary motion. Through a series of connected components, this motion then moves the vehicle’s wheels so that the vehicle can move forward.Full Answer >