While aluminum is light, its use for a diesel engine block offers a greater challenge than cast iron in terms of ensuring strength and a low operating noise. (greencarcongress.com)
Another thing we like about the Nitrochargers is their eccentric sliding intake valve arrangement, which greatly improves rebound response time while also reducing operating noise. (fourwheeler.com)
Many of these machines have unique operating noises and alarms that may frighten you or make you feel something is not right with your baby. (healthychildren.org)