What happens if you separate the harmonic balancer?
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. This will make it difficult, if not impossible to properly time the engine with a timing light. 3. Separated harmonic balancer
What kind of oil is in a harmonic damper balancer?
The whole engine is stock standard. There is thick black mud as the remains of engine oil in the block and sump. The valves are original Ford valves, the valve seats are un-burnt, not recessed, they are mint. The valves had never been adjusted, but still had clearance.
Can a harmonic balancer fix torsional engine vibration?
A balancing service does not remedy torsional vibration. A harmonic balancer only effects unbalanced engine vibration if it contains a counterweight. This is referred to as an external balanced engine. Today the Ford Power Stroke and Chevy Duramax fall into this category.
What causes a crankshaft harmonic balancer to slip?
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 happens when the harmonic balancer goes bad?
The harmonic balancer is specifically designed to absorb harmonic engine vibrations as engine speeds rise. If the harmonic balancer gets too old or fails and can no longer properly absorb the harmonic vibrations, the engine will shake excessively.
What is the purpose of a crankshaft harmonic balancer?
The crankshaft harmonic balancer is a device connected to the front of an engine’s crankshaft, usually built into the crankshaft pulley. Its purpose is to absorb and reduce harmonic vibrations from the engine as the crankshaft rotates, as harmonic vibrations at high engine speeds can…
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.”
What happens when a harmonic damper goes bad?
One automotive part that frequently gets overlooked is the harmonic balancer (also known as a vibration damper or crankshaft damper). Although the component is often forgotten, when it fails, it can cause major problems—including severe engine damage.