Valves can make noise due to several reasons, including turbulence in the flow of fluid, mechanical vibrations, or improper installation. Noise may also arise from issues such as cavitation, where vapor bubbles form and collapse, or from loose components that rattle. Additionally, worn or damaged valve parts can lead to increased noise levels. Regular maintenance and proper selection can help mitigate these issues.
The toilet may randomly make noise due to a faulty flapper valve, a loose fill valve, or a problem with the water pressure in the pipes. These issues can cause the toilet to run intermittently, leading to noise.
are you sure is a valve noise?? or is a piston slap?
you may have a bent valve
Yes, it'll make noise when it's signaled to purge, an for up to 30 seconds afterwards. That noise is going to be from air being evacuated from the canister.
My car, a 2008 Audi A4 Turbo was experiencing a cyclical chirping noise, similar to a noisy fan belt ( which it does not have). A defective PCV valve was found , however, the car after being repaired is still making that noise.
valve who needs ajustment
check the cadillidic converter under the car.
Your toilet may be making noise every few minutes due to a faulty flapper valve, a leak in the fill valve, or a problem with the water level in the tank. These issues can cause the toilet to constantly refill and make noise. It is recommended to check and repair these parts to stop the noise.
It retards / slows the engine timing up when it detects an engine knock / pining noise like bad fuel are valve noise.
Because the gap between the rocker and the valve is too big and what you hear is the rocker slapping the valve stem. Get yourself a manual for your car and find the valve gap so you can adjust them properly.
All turbos will give a blow off valve noise but the higher the pressure in the boost pipes (eg) higher boost, the louder the blow off noise and if you have a recirculation valve remove that with a remap and the noise will be even louder.
Tapping valves is a noise made by too much clearance between the valve lifter and the valve. Modern engines have hydraulic lifters. If you have too little oil pressure or run the engine low on oil, the lifters will make noise. The lifter can also wear out.