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  2. Engine knocking - Wikipedia

    en.wikipedia.org/wiki/Engine_knocking

    Modern knock control-loop systems are able to adjust ignition timings for every cylinder individually. Depending on the specific engine the boost pressure is regulated simultaneously. This way performance is kept at its optimum while mostly eliminating the risk of engine damage caused by knock (e.g. when running on low octane fuel). [5]

  3. Break-in (mechanical run-in) - Wikipedia

    en.wikipedia.org/wiki/Break-in_(mechanical_run-in)

    Break-in or breaking in, also known as run-in or running in, is the procedure of conditioning a new piece of equipment by giving it an initial period of running, usually under light load, but sometimes under heavy load or normal load. It is generally a process of moving parts wearing against each other to produce the last small bit of size and ...

  4. How to safely restart your wall heater — and get help if needed

    www.aol.com/news/safely-restart-wall-heater-help...

    Some people may be turning on their heater for the first time this season. Here's how to make sure it's working properly, and how to seek help if it's not.

  5. List of automobiles known for negative reception - Wikipedia

    en.wikipedia.org/wiki/List_of_automobiles_known...

    This variant of the Camaro was included in Time magazine's list of "The 50 Worst Cars of All Time"; Dan Neil said of it, "As the base engine for the redesigned 1982 Camaro (and Pontiac Firebird), the 2.5-liter, four-cylinder “Iron Duke” was the smallest, least powerful, most un-Camaro-like engine that could be and, like the California ...

  6. Electromagnetically induced acoustic noise - Wikipedia

    en.wikipedia.org/wiki/Electromagnetically...

    The torsional deflection of a simple cylinder cannot radiate efficiently acoustic noise, but with particular boundary conditions the stator can radiate acoustic noise under torque ripple excitation. [8] Structure-borne noise can also be generated by torque ripple when rotor shaft line vibrations propagate to the frame [9] and shaft line.

  7. Exhaust system - Wikipedia

    en.wikipedia.org/wiki/Exhaust_system

    Exhaust system of the Opel Corsa B 1.2 petrol Exhaust manifold (chrome plated) on a car engine. An exhaust system is used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes. Depending on the overall system ...

  8. Diesel particulate filter - Wikipedia

    en.wikipedia.org/wiki/Diesel_particulate_filter

    Cordierite Diesel Particulate Filter on GM 7.8 Isuzu. Unlike a catalytic converter which is a flow-through device, a DPF retains bigger exhaust gas particles by forcing the gas to flow through the filter material before exiting; [2] [29] however, the DPF does not retain small particles.

  9. Block heater - Wikipedia

    en.wikipedia.org/wiki/Block_heater

    Electrical cord for powering a block heater. A block heater is used in cold climates to warm an engine prior to starting. They are mostly used for car engines; however, they have also been used in aircraft engines. The most common design of block heater is an electrical heating element embedded in the engine block.