What is the reason for increased engine noise after installing an engine underguard?
2 Answers
During driving, the steel engine protection plate and steel gasket may form resonance, which increases the noise. The following is relevant information about the engine: 1. Introduction: An engine is a machine that can convert non-mechanical energy into mechanical energy. 2. Classification: Including internal combustion engines, external combustion engines, jet engines, electric motors, etc. External combustion engines convert the thermal energy generated by combustion into kinetic energy. The steam engine improved by Watt is a typical external combustion engine; Internal combustion engines, also known as reciprocating piston engines, differ from external combustion engines in that the fuel burns inside them; Jet engines refer to engines that directly generate reactive thrust by the high-speed airflow ejected from the nozzle.
I've installed quite a few engine underguards and found three main reasons for increased noise after installation: First, loose installation of the guard, such as screws not being tightened properly or having play, can amplify the engine's original sounds through vibration. Second, material issues - metal types tend to reflect echoes, while plastic ones, though lightweight, may deform and come into contact with components. Third, improper positioning - sometimes the guard is installed too close to the exhaust system or engine, causing friction noises during thermal expansion and contraction. I recommend first checking the tightness of screws yourself or trying to install rubber gaskets for vibration damping. If that doesn't work, it's best to have a professional shop adjust it to prevent long-term resonance damage to engine components. Increased noise not only affects driving comfort but may also mask other potential fault signals - safe driving shouldn't be overlooked. When choosing a guard, consider matching it with the vehicle's overall structure; don't just go for cheap and easy options.
