Re: Testing Ignitor - Saab Vintage Models Bulletin Board - Saabnet.com
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Re: Testing Ignitor
Posted by Anders OZ [Email] (more from Anders OZ) on Mon, 27 Aug 2001 21:33:46
In Reply to: How to test if Pertronix has failed, Gary Piland, Sun, 26 Aug 2001 02:45:35
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Testing of Pretronix Ignitor
1/ Connect the positive (+) lead of a voltmeter to the negative (-) side of the ignition coil. Connect the negative (-) lead of the volt meter to ground. Set the voltmeter to DC volts on at least a 15volt scale.
2/ Disconnect the high voltage wire from the center of the distributor cap and ground it to the engine block or chassis.
3/ Crank engine
4/ The voltmeter should fluctuate from a range of 1 to 2 volts to a range of 10 to 12 volts as the engine is cranked.
5/ If the voltmeter does not fuctuate, one of the following problems exist:
a/ If the voltmeter shows constant 0 reading, there is an open circuit somewhere in the primary ignition circuit.
b/ If the voltmeter shows a constant voltage in the 1.0 to 3.5 volts range, the power transistor is shorted out.
c/ If the voltmeter shows a constant voltage equal to the battery voltage, there is an open circuit in the ignitor or the Hall cell is not operating.
Good Luck
posted by 203.26...
Posts in this Thread:
- How to test if Pertronix has failed, Gary Piland, Sun, 26 Aug 2001 02:45:35
- Re: How to test if Pertronix has (epilogue), Gary Piland, Sun, 2 Sep 2001 17:53:17
- Re: Testing Ignitor, Anders OZ, Mon, 27 Aug 2001 21:33:46 <-- Viewing This Message
- Re: How to test if Pertronix has failed, spiv, Mon, 27 Aug 2001 00:04:17
- Re: How to test if Pertronix has failed, Andy in PDX, Sun, 26 Aug 2001 04:03:28
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