pre-ignition

British  

/ ˌpriːɪɡˈnɪʃən /

noun

1. ignition of all or part of the explosive charge in an internal-combustion engine before the exact instant necessary for correct operation

---

Example Sentences

A big, blond fellow dressed in boots, homespun-looking trousers the color of red mud, a colorful blouse-like shirt with kerchief and, when he fires the cannon, a relatively fire-retardant wool shell jacket, Rollow told the group a story about a “pre-ignition” incident from long ago.

From Washington Times

It has been found necessary to develop special types of pistons to carry the heat from the center of the head in order to prevent pre-ignition.

From Project Gutenberg

To prevent troubles due to pre-ignition it is necessary that the combustion chamber be made so that there will be no roughness, sharp corners, or edges of metal which may remain incandescent when heated or which will serve to collect carbon deposits by providing a point of anchorage.

From Project Gutenberg

That is a common compression ratio for an average motor, and is chosen because it is considered to be the best for maximum horse-power and in order that the compression pressure will not be so high as to cause pre-ignition.

From Project Gutenberg

The only drawback to this system is that there is no absolute insurance that every particle of carbon will be removed, as small protruding particles may be left at points that the flame does not reach and cause pre-ignition and consequent pounding, even after the oxygen treatment.

From Project Gutenberg