Table of Contents
How do I know if my harmonic balancer is seated?
If you take out the bolt and look at the inside of the balancer hole the end of the crank should be flush with the machined area of the balancer where the bolt and washer tighten down. This is a small block Chevy, the end of the damper sits an inch or two past the end of the crank….
Does removing harmonic balancer affect timing?
The harmonic balancers found on many vehicles are constructed as two pieces of metal with a rubber layer in between to dampen the vibrations. If the layers separate or slip, the timing marks, which are usually stamped into the front of the pulley, can shift and thus throw off the placement of the timing marks.
What is the purpose of a harmonic balancer?
The harmonic balancer helps minimize torsional crankshaft harmonics and resonance. The damper is composed of two elements: an inertia mass and an energy dissipating element. Most often made of rubber, this element may be composed of a synthetic elastomer, a clutch, a spring or fluid.
How do I choose a harmonic balancer?
As a rule of thumb, the longer the stroke and greater the torque, the larger the diameter and mass. However, larger dampers can affect the acceleration and revving ability of an engine, so the right diameter and mass can help you strike the right balance.
Can you put a harmonic balancer on wrong?
It’s not okay to drive with a bad harmonic balancer. The bouncing crankshaft will wear on the main bearings. It can also tear up drive belts and possibly come apart posing a danger to people and property.
Is a harmonic balancer supposed to wobble?
Noticeable Harmonic Balancer Wobble When the rubber isolator begins to deteriorate, the balancer usually begins to separate, creating a noticeable wobble when the engine is running.
Does a harmonic balancer need to be balanced?
You can add a new harmonic balancer at any time without the motor needing to be rebalanced. The only issue is making sure the imbalance is the same, i.e. 28 oz crank with a 28 oz balancer and not the 52 oz version.
Can harmonic balancer cause misfire?
The harmonic balancer also acts as a pulley for your vehicle’s drive belts so when it begins to fail your engine’s belts may slip, operate noisily or become damaged. You may experience this as an inability to accelerate efficiently, dips in fuel economy and engine misfiring or backfiring.
How does a harmonic balancer pulley work?
The rubber inside the pulley is what actually absorbs the vibrations and keeps them at a safe level. In essence, the device is designed to help prevent crankshaft failure. The mass counteracts the torsional crank motions and in concert with the energy dissipating element absorbs the harmonics vibrations.
What’s the torque on a harmonic balancer?
Smaller Chevy models should have the harmonic damper bolt set to 60 foot-pounds. Larger Chevy vehicles should have a torque of 85 foot-pounds. Hemi426, smaller Chrysler and larger Chrysler motors should have a harmonic damper bolt set to 135 food-pounds.
How do you adjust a harmonic balancer?
The only way to tighten the harmonic balancer bolt properly is to lock the motor up somehow and tighten it with a torque wrench to the correct tension. Which means usually wedging the flywheel some way. Or you could just use a impact wrench (rattle gun) and tighten it up really tight if you want the easy way out.