Sfgssfsdfsdf

Spark Burn Time Duration
     The length of time the Spark arc is maintained across the spark plug electrodes is called Burn Time. The Spark Burn Time is measured in milliseconds (ms) that's howshort really is. 1 sec = 1000 ms.  In the following diagram, the Burn Time is the period from the peak of Firing Voltage, through the current flow portion of the spark arc ( Spark Burn Voltage Line ), tothe point where the coil energy can no longer sustain the spark. The Spark Plug Burn Time duration is used to determine the condition of secondary ignition components ( i.e. anything after thesecondary windings of the ignition coil- spark plugs, high tension leads, distributor cap, rotor, central HT lead, coil tower.) If the duration of one cylinder is much shorter or longer than the others, aproblem with that cylinder is indicated.
[pic]
    The length of the spark burn time is directly affected by the amount of secondary coil voltage available, the amount of voltage required to overcomesecondary circuit resistance and create the spark, and the amount of voltage remaining to sustain the spark ( in relation to the conditions within  the combustion chamber). Factors that have directeffect on Spark Burn Time Duration include:
• Coil output ( energy )
• Secondary circuit resistance
• Air/Fuel charge quality and quantity
• Secondary short circuits that cause thespark energy to be shunted elsewhere
• Low primary circuit current
    Below are some common guide lines for factors that affect the spark time burn duration: | |
|Spark Burn Time Duration|
|Factor|Short |Normal |Long |...