valve bounce meaning
The unintended secondary opening of an engine valve due to inadequate rigidity of various parts in the valve gear
- Other modifications included a water-jacketed inlet manifold, timing adjustments and stronger valve springs to eliminate valve bounce at high engine speeds.
- Stiffer valve springs can help prevent valve float and valve bounce, but only at the expense of increased friction losses and higher stresses in the valvetrain.
- "' Valve bounce "'is a related condition where the valve does not stay seated, due to the combined effects of the valve's inertia and resonance of metallic valve springs that reduce the closing force, and allow the valve to re-open partially.