Harmonic Balancer Puller

A harmonic balancer puller (also called a damper puller) is a specialized puller tool used to remove the harmonic balancer (crankshaft damper) from the front snout of the engine's crankshaft. Because the balancer is press-fit onto the crankshaft to ensure a tight, wobble-free fit, it cannot be pried or hammered off without risking damage to the crankshaft bearings, the engine block, or the balancer itself.

The puller typically consists of a central forcing bolt that threads through a slotted yoke. Bolts from the puller kit are threaded into matching holes on the face of the harmonic balancer hub. As the central forcing bolt is turned, it pushes against the crankshaft snout (often protected by an adapter insert), pulling the harmonic balancer smoothly off the shaft.

Using a standard jaw puller that grabs the outer ring of the balancer is a common mistake; because the balancer consists of an inner hub and outer ring separated by a rubber dampening strip, pulling on the outer ring will tear the rubber and ruin the balancer. Always use a bolt-type puller that attaches directly to the inner hub to ensure a safe, damage-free removal.