From EMU - Coils
R2+
220 Ohm Pull-Up
Resistor
From Fuse Box
R2+
From Fuse Box
Coil A
Coil B
Trigger
Trigger
4.12 Setting Timing
4.12.1 Setting Distributor Timing and Rotor Fazing
This setup for distributors with Rotors requires 2 settings. One is to align the rotor with actual
crank degrees and the other is to align the software with the sensor timing.
Rotor Fazing
Rotor fazing is a mechanical adjustment to ensure that the Rotor is under the relevant high tension
pole during the spark generation. If it is not under the pole, the spark will have to jump the gap in
the distributor which will cause less energy at the spark plug. It will also generate interference on
the sensors causing erratic misfires. As most cars operate between 14 and 36 °BTDC you must
ensure that the Rotor is under the pole during this span. That is why we use 25° to place the Rotor
under the Pole. Then it can advance a total of 11 degrees, up to 36° or retard a total of 11
degrees, down to 14° and still have contact between rotor and pole. See Illustration below:
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