How to test Turbo dizzy

[DatsunBoy77]

OK, i have gone through everything and replaced the old, but havent had spark in 4 weeks now. At first it seemed to be a bad switch, but now i have power going into the 5 mile old coil. The wires have only maybe 50 miles top. Cap and rotor maybe half that. New plugs. Nothing. How can i test the dizzy. The fsm i have mainly shows the NA dizzy, not the turbo. Anyone know a quick way to determine if it is dead.

[SleeperZ]

Are you running an '81 turbo? There is a factory supplement for the FSM for that year, then there should be a section included in the '82 and '83 years.

 

If your car is running, the CAS and trigger stuff inside the dizzy works. If it fails, the car flat will not run.

 

If you have power to the coil, can you confirm there is no switching on the negative coil terminal? You can probe for power to the dizzy at the harness on the ECU. The signals back should be pulsing as you crank the engine, or spin the removed dizzy with the ignition on.

[DatsunBoy77]

Its an 83. The fsm only shows them testing the NA dizzy with the vacuum advance. So if i test the wires comming from the cas while cranking, there should be power out or just nothing if it is dead, right?

[SleeperZ]

Its an 83. The fsm only shows them testing the NA dizzy with the vacuum advance. So if i test the wires comming from the cas while cranking, there should be power out or just nothing if it is dead, right?

 

Sounds right. The signals should pulse as the diz spins. I'm surprised there is no section in your '83 FSM for the distributor - the '82 certainly has it.