Wednesday, September 29, 2010

Testing ignition coil

Testing primary and secondary windings of the coil.











Wasted spark coil pack.
















Testing ballast resistor.
Ballast resistor number: 13R3
Specifications: 1.5-1.7 ohms
Measured resistance: 1.6 ohms
This ballast resistor in manufactures specs and still can be used.

Measuring current draw and voltage drop of standard single tower coil.
Calculated voltage drop and measured voltage drop are equal as the Ohms Law says Volts=Amps*Resistance.

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