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.Know More
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
Symptoms of a failing fuel pressure regulator include blackened spark plugs, a rough running engine and black smoke coming out of the tailpipe. This is because a failing regulator causes inconsistent fuel pressure to the engine, leading to a rich running condition and excessive fuel use.Full Answer >
A grating noise when accelerating a car is often a sign of bad brakes. The disk brake pads rest against the rotors at all times. When the material on the pad wears through, the metal plate that backs the pad rests against the rotor and makes the noise.Full Answer >
The National Highway Traffic Safety Administration (NHTSA) says that frontal airbags saved 2,213 lives in 2012. This number has risen each year since 1998, when federal legislation mandating frontal air bags went into effect, and has now leveled out at just over 2,000 lives saved a year.Full Answer >
A crankshaft position sensor costs between $68 and $130. The exact cost depends on where the part is purchased and the make and model of the car.Full Answer >