 
					|   | 
 | 
 | 
| 
 | 
| Registered Join Date: Dec 2016 
					Posts: 16
				 | 
				
				Power Surge Event - Now No Spark
			 
			Hi all, In an unfortunate circumstance I had a power surge event (12v to starter wasn’t bolted on and hit a heat exchanger). Now I’m chasing down some issues and have no spark. The “event” popped fuses 7/8 (I think those are them) in the front trunk. Those fuses have since been replaced. I had the CDI tested and it is in working order. I tested the coil it is good. The starter works and seems to want to turn over, I’m just not getting spark. This rebuild also has 0 miles on it and had only 10 minutes of running time before this happened. I’m trying to get ahead of this but I plan to test the ignition switch next. Is there anything else I should be looking for/testing that could have failed? Any common failure points? | ||
|  06-05-2024, 07:35 AM | 
 | 
| Registered Join Date: Dec 2014 
					Posts: 13,924
				 | 
			What year is your car and how did you test the cdi and coil?
		 
				__________________ House producers wanted to end the show after season 8 to keep the enigmatic appeal of the central character and maintain the show's mystique. Ahhh The Mystique!!! | ||
|  06-05-2024, 07:48 AM | 
 | 
| Registered Join Date: Dec 2016 
					Posts: 16
				 | 
			1972 911T I bench tested the coil using a multimeter. Unless there is a specific process of testing a Bosch coil that I was not aware of. The CDI I had sent to a professional rebuilder who tested it and said it was all in working order. He had rebuilt it for me before i had the event. | ||
|  06-05-2024, 08:59 AM | 
 | 
| Registered Join Date: Feb 2014 Location: Lomita, CA 
					Posts: 2,700
				 | Quote: 
 Just remove the coil wire at the distributor and place it about a 1/4 to 3/8 inches away from the base of the coil. Then remove the black wire at the distributor input and momentarily ground it which should produce a spark. Did your "professional rebuilder" help you troubleshoot this? 
				__________________ Dave | ||
|  06-05-2024, 09:58 AM | 
 |