Component Tests and General Diagnostics

Remove the High-Tension Cable (Spark Plug Wire) from any Spark Plug. Hold the end of the High-Tension Cable (Spark Plug Wire) close to the Engine Block and while cranking Engine, check to see if a spark jumps across the gap.

Be sure to cover the High-Tension Cable (Spark Plug Wire) with dry paper, or some other good insulating material to prevent shock before cranking the Engine.

Spark jumps across the gap:
a. Ignition timing incorrect.
b. Spark Plug defective.
c. Fuel not reaching Engine.
d. Engine lacks compression.

No sparking takes place:
a. Primary Coil Circuit shorting.
b. Distributor air gap incorrect.
c. Distributor Points burned.
d. Primary Coil Circuit open or loosely connected.