How the exhaust valve early or late openning affects the engine operation?
Early opening of the exhaust valve leads to:
- Higher exhaust temperature of the unit due to opening the valve while fuel still burns
- Fouling of the exhaust gas system by carbon deposits from partially burnt fuel
- Reduction of engine power and efficiency
Late opening causes:
- Reduced time of scavenging and hence, its efficiency
- Reduced turbocharger efficiency
