Free Auto Repair Advice by Certified ASE Technicians
How Does it Work /
Harmonic
Balancer
Engine Harmonic Balancer
A harmonic balancer is connected to the front of the
engine
crankshaft
and is designed to help reduce vibration. The harmonic balancer is comprised of
two separate pieces, the first is the mass which connects to the crankshaft and
the second is the energy dissipating element. These elements are separated by a
rubber insulator. The mass is designed to absorb vibration created from the crankshaft
while in operation.
Harmonic Balancer
Failed Harmonic Balancer
Almost all vehicles are equipped with a harmonic balancer. Due to the
stress and strain that is placed upon the harmonic balancer the unit can sometimes
crack or separate. If upon inspection the harmonic balancer shows signs of weakness
such as cracks, missing pieces or misplaced insulator you will need to replace the
balancer. To replace the harmonic balancer a special tool is required. A balancer
that is damaged can cause excessive strain on the engine crankshaft. In extreme
cases it can require the crankshaft to be replaced as well as the harmonic balancer.
If the harmonic balancer is exposed to oil it can cause the balancer to fail.
Check for oil leaks to prevent failure of the harmonic balancer. Proper engine performance
can keep the harmonic balancer operational. The balancer can be overworked by a
poorly running engine.
How Does it Work
/ Harmonic
Balancer
Check Manufacturer Specific Harmonic
Balancer Questions and Answers
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