SPARK-PLUG MISFIRING due to lead fouling occurs when compounds of low electrical resistance are deposited on the spark-plug ceramic under low-temperature operating conditions and are subsequently raised to high temperature by operating the engine at higher speeds and loads.Spark-plug temperature (as measured with thermocouple spark plugs) was found to be the most important variable governing misfiring. Deposit composition together with spark-plug temperature governs the shunt resistance of the spark plug. When this shunt resistance becomes sufficiently low, misfiring occurs.Misfiring severity was shown to decrease when:
Spark-Plug Misfiring —mechanism studies
Sae Technical Papers
Pre-1964 SAE Technical Papers ; 1906
1960-01-01
Conference paper
English
Drag , Ceramics , Conductivity , Knock
Misfiring: some causes and some remedies
Engineering Index Backfile | 1909
|TEMIC seat occupancy detection system prevents costly airbag misfiring
Online Contents | 1996
Engineering Index Backfile | 1953
|SAE Technical Papers | 1953
|CARB:California air research board engine misfiring detection
Automotive engineering | 1991
|