The vehicle's ignition timing will be off. They include: The rubber damper that joins the hub and balance ring can deteriorate over time. Some of the most common problems with harmonic balancers are with the rubber damper. The pulley belt may slip causing your vehicle to backfire or misfire. The harmonic balancer absorbs all of that intense vibration and offsets the torsional distortion to protect the crankshaft, and ultimately, the engine. Signs that your crankshaft harmonic balancer needs to be replaced include: The engine is loud and you feel vibrations coming from your engine. When should a harmonic balancer be replaced? It's usually connected to the crank pulley, which drives accessories like the air conditioner. The circular device, made of rubber and metal, is bolted at the front end of the crankshaft to help absorb vibrations. Some SFI approved dampers such as the ATI Super Damper use steel inertia weights and they are tunable and rebuildable. It buffers and dampens engine parts and engine performance by absorbing the violent torsion of the modern-day engine. This is where the harmonic balancer comes in. A simple way to think of the harmonic balancer is like a massive stress reliever. It can also tear up drive belts and possibly come apart posing a danger to people and property.īeside this, where does the harmonic balancer go? The crankshaft harmonic balancer is a device connected to the front of an engine’s crankshaft, usually built into the crankshaft pulley. The bouncing crankshaft will wear on the main bearings.
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It's more critical in 6 and 8 cylinder engine as the crankshaft gets longer and the resonant frequency drops in to the typical driving RPM range. Signs of a Bad Crankshaft Harmonic Balancerįurthermore, can you drive with a bad harmonic balancer? It's not okay to drive with a bad harmonic balancer. So the 'harmonic balancer' is a key component comprising mass and absorber - both of which work together to prevent the crank flying apart at a critical RPM resonance. People also ask, how do I know if my harmonic balancer is bad? Meaning that the balancer sticks out 1/4 inch past the crankshaft. Most often made of rubber, this element may be composed of a synthetic elastomer, a clutch, a spring or fluid. The damper is composed of two elements: an inertia mass and an energy dissipating element.
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How far should the harmonic balancer go on the crankshaft? When I tighten down the Harmonic balancer, it goes to about 1/4 inch from flush with the end of the crankshaft. What does harmonic balancer do The harmonic balancer helps minimize torsional crankshaft harmonics and resonance.