Yo mike appreciate the info. As you stated in the video. The key is to stress the ignition with a snap throttle. With the insulated COP now, its harder to get a clean ignition waveform
Thanks, DJ. I'm going to pick up some of Joes ignition pick ups, and see how I like those. If I can get them to work the way I want, I'll have a nice long video demonstrating those on a modern vehicle. I currently use the pico paddle pick-up. I honestly don't care for it, but it works. Just not well enough for a demonstration.
Isnt there a way to determine if the spark is happening inside the cylinder or outside the cylinder by looking for anomalies in each half of the burn line?
Yes, there is a method popularized by Jim Morton. His secondary classes are excellent, and I believe they are available on RUclips. I have been planning to expand on the secondary ignition analysis videos I have done. I've been using up most of my free time working with the mt pro, which is an awesome ignition analysis tool. So there will definitely be more coming.
@710diagnosticsandfishing im just patiently waiting for Joe Caci of Joe's Auto Electric to get some more MT6's in so i can pick one up, next stop is to watch all your MT6 videos LOL
Yes by performing the Snap Throttle test as shown in this video. From IDLE to Snap Throttle, the Spark Burn line will shorten up and the Spark KV increases. The Burn Line shortening up on Snap Throttle indicates that Timing Advance is working. The Spark KV increases on Snap Throttle because of the increased Cylinder pressures. If you HOLD throttle, the Spark KV drops because the spark is now occuring earlier when cylinder pressures are lower...also indicating timing advance. This means the spark is occuring inside the combustion chamber. In his example of the Shorted Spark, the waveform will change very little if at all when doing snap throttle test, meaning cylinder conditions are not affecting the waveform...meaning the spark is happening outside of the cylinder. Looking at each half of the burn line still applies here. Again look at the Shorted Spark example. The Burn line is practically 0V. The spark found a path with no resistance. If it occured in the cylinder it would require higher KV to overcome the in cylinder resistance to keep the spark burning. Higher resistance = More KV needed to keep spark burning. In the example of the disconnected injector, the spark rapidly runs out of fuel (a conductor) and thus the KV required starts climbing. More fuel = better conductivity = less KV required.
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THAT WAS A VERY GOOD EXPLANATION PRESENTATION ,,, WOULD LOVE TO SEE MORE ON THIS SUBJECT . THANK YOU FOR YOUR TIME !!!
I am planning to cover this topic in a more in-depth longer video.
I'm happy you enjoyed it. Thanks for watching.
Excellent video, these examples show the power and accuracy of using a scope.
holy moly man! production quality huge improvements! great explanation. Thank you for taking the time as always!
Babysteps on the production side of things, but getting that quality up where I can.
I'm happy you enjoyed it. Thanks for watching.
Yo mike appreciate the info. As you stated in the video. The key is to stress the ignition with a snap throttle. With the insulated COP now, its harder to get a clean ignition waveform
Thanks, DJ.
I'm going to pick up some of Joes ignition pick ups, and see how I like those. If I can get them to work the way I want, I'll have a nice long video demonstrating those on a modern vehicle.
I currently use the pico paddle pick-up. I honestly don't care for it, but it works. Just not well enough for a demonstration.
@@710diagnosticsandfishing THAT IS A VIDEO I WOULD LOVE TO SEE,, THANKS AGAIN .
Isnt there a way to determine if the spark is happening inside the cylinder or outside the cylinder by looking for anomalies in each half of the burn line?
Yes, there is a method popularized by Jim Morton. His secondary classes are excellent, and I believe they are available on RUclips.
I have been planning to expand on the secondary ignition analysis videos I have done.
I've been using up most of my free time working with the mt pro, which is an awesome ignition analysis tool. So there will definitely be more coming.
@710diagnosticsandfishing im just patiently waiting for Joe Caci of Joe's Auto Electric to get some more MT6's in so i can pick one up, next stop is to watch all your MT6 videos LOL
I believe he has some in stock now !!
If not really soon.
Yes by performing the Snap Throttle test as shown in this video. From IDLE to Snap Throttle, the Spark Burn line will shorten up and the Spark KV increases. The Burn Line shortening up on Snap Throttle indicates that Timing Advance is working. The Spark KV increases on Snap Throttle because of the increased Cylinder pressures. If you HOLD throttle, the Spark KV drops because the spark is now occuring earlier when cylinder pressures are lower...also indicating timing advance. This means the spark is occuring inside the combustion chamber.
In his example of the Shorted Spark, the waveform will change very little if at all when doing snap throttle test, meaning cylinder conditions are not affecting the waveform...meaning the spark is happening outside of the cylinder.
Looking at each half of the burn line still applies here. Again look at the Shorted Spark example. The Burn line is practically 0V. The spark found a path with no resistance. If it occured in the cylinder it would require higher KV to overcome the in cylinder resistance to keep the spark burning. Higher resistance = More KV needed to keep spark burning. In the example of the disconnected injector, the spark rapidly runs out of fuel (a conductor) and thus the KV required starts climbing. More fuel = better conductivity = less KV required.
Another good one.thank you
Thanks for watching
What setup you use for 3 and 4 wire coils?
I like Joe's ignition pick-ups.
Joesautoelectric.net
Great content keep the videos coming.thanks for sharing
Thanks for watching
very poor video, scope is not visible
Thanks for the feedback