SPARK UP!
One of the most common causes of overheating in. a motor engine is driving with a retarded' spark. A late spark gives rise to overheating because combustion takes place so late that the gases have not had an opportunity to be cooled by expansion before the exhaust valve opens. The result is that the engine runs much hotter than it would if the explosion occurred near upper dead centre, as it is supposed to do.
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Bibliographic details
Manawatu Times, Volume LIII, Issue 6650, 2 July 1928, Page 9
Word Count
77SPARK UP! Manawatu Times, Volume LIII, Issue 6650, 2 July 1928, Page 9
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