What a bad harmonic balancer looks like?
What a bad harmonic balancer looks like?
Unusual Noises. A faulty balancer can result in a knocking, rattling, or squeaking sound that corresponds with engine speed. In some cases, the noise is bad enough to be mistaken for an internal engine problem.
Where is the harmonic balancer on a car?
Racing Technology A common part found on all high-performance engines is a harmonic damper (or harmonic balancer, as they are often called). Found at the front of the engine attached to the snout of the crankshaft, harmonic dampers are used to quell the harmonics of the crankshaft.
What are the different types of harmonic balancers?
So, with that, as the name implies, a properly designed harmonic balancer will absorb harmonics and vibration and keep your bottom end alive. There are three major types of balancers: elastomer, fluid, and friction.
How does gas pressure affect the harmonic balancer?
An increase in gas pressure in the combustion chamber equals an increased twisting force on the crankshaft throws. This causes a deflection or twisting motion that is known as torsional vibration. The peaks of this back and forth motion are measured as amplitude.
How is the amplitude of a harmonic balancer measured?
This causes a deflection or twisting motion that is known as torsional vibration. The peaks of this back and forth motion are measured as amplitude. The function of the harmonic balancer is to reduce the amplitude of the torsional vibration peaks to an acceptable level.
Why is a harmonic balancer important in an engine?
A harmonic balancer is a crucial component of the engine which helps the crankshaft last as long as possible. To understand what a harmonic balancer is, it is important that you know how an engine works.
This causes a deflection or twisting motion that is known as torsional vibration. The peaks of this back and forth motion are measured as amplitude. The function of the harmonic balancer is to reduce the amplitude of the torsional vibration peaks to an acceptable level.
How is a harmonic balancer connected to the crank pulley?
It is connected to the crank pulley. It is the rubber inside the pulley which is responsible for absorbing the vibrations generated by the crankshaft and keep them at a safe level. This helps the crankshaft from failing. By dampening the vibrations, it literally becomes its lifesaver!
When do you need a harmonic balancer NHRA?
NHRA requires the use of an SFI 18.1 harmonic damper for any car running faster than 10.99 in the quarter-mile. Beyond that requirement, any engine that has been modified for increased horsepower and/or higher rpm limit can benefit from the use of a quality harmonic damper.”
