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NO SPARK ON ANY CYLINDER:

  • 1.

    If a mercury switch is connected to the switch box, disconnect it and retest. If you now have spark, replace the mercury switch.

  • 2.

    Connect a spark gap tester to the high-tension lead coming from the ignition coil and set it to approximately 7/16”. When you crank the engine over, if it fires while the spark gap tester is connected to the coil and does not fire through the spark plug wires – there is a problem in the distributor cap, rotor button or spark plug wires.

  • 3.

    Check the DC voltage present on the white trigger wire and the red terminal of the switch box while cranking. It MUST be at least 9½ volts. If not, there is a problem in the harness, key switch, starter, battery cables or battery.

  • 4.

    Check DVA voltage between the blue terminal and engine ground while cranking (The trigger wire must be connected to the switch box). You should read at least 9V.

  • 5.

    Disconnect the wire from the blue terminal of the switch box and connect a jumper wire to the terminal. Strike the other end of the jumper wire against engine ground. The CD module should fire each time. Failure to fire usually indicates a bad CD module.

  • 6.

    Check DVA voltage on the green wire going to the coil, it should be over 100 volts at cranking.

NO SPARK OR INTERMITTENT SPARK ON ONE CYLINDER:

  • 1.

    Connect a spark gap tester to the spark plug wires coming from the distributor cap and set the air gap to approximately 7/16”.

  • 2.

    Align the rotor with #1 spark plug wire. Disconnect the wire from the blue terminal of the switch box and connect a jumper wire to the terminal. Strike the other end of the jumper wire against engine ground. Only the #1 spark plug wire should fire. If any other spark plug wire has fire, there is a problem in the distributor cap.

  • 3.

    Repeat the test for the other cylinders.

NOTICE: The 4 cylinder engines using the 332-3213 ignition module and belt driven ignition driver DO NOT USE BATTERY VOLTAGE. Connecting 12V to the Red terminal will destroy the module.

44

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