Matronics Email Lists :: View topic - Engine roughness, as in stops. starts. stops. starts.

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Engine roughness, as in stops. starts. stops. starts.

Matronics Email Lists Forum Index -> Yak-List

View previous topic :: View next topic

Author Message

mark.bitterlich(at)navy.m
Guest

Posted: Wed Jun 03, 2015 7:17 am Post subject: Engine roughness, as in stops. starts. stops. starts.

Jan, 



I never considered a corona in action.   Just for the sake of discussion, I'll mention that I measured the heat rise in a MSD Blaster II coil using an infra-red gun and it is significant (and it is also oil filled), which is kind of why I started wondering if it really is just engine heat that is involved.   No doubt heat is contributory, but while it might be an insignificant point, I question whether it is all engine heat and not just  self-induced, or maybe a combination of both.  



So I am trying to get my mind around this.  Without creating an actual arc, the corona should rob energy from the coil correct?   Not to mention if there is moist air...... there should be the formation of nitric acid, although since the premise is that there is such a small amount of air and water available, that might not be much ... but never-the-less there should be a chemical reaction that also would be contributory to insulation loss.  



Another thought is that the high voltage potential necessary for a corona to form would not be present throughout the whole coil but instead only near a certain percentage near the end where the voltage becomes "high enough" voltage to create corona loss.  



The problem I have with this explanation is understanding why it would make the engine run rough, cough, lug, etc., with the opposite mag operating properly?   I can see where it could cause the engine to run rough or misfire on that one mag, but how would it do it with both operating? 



Mark

 



--

- The Matronics Yak-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List

wlannon(at)shaw.ca
Guest

Posted: Wed Jun 03, 2015 8:42 am Post subject: Engine roughness, as in stops. starts. stops. starts.

Mark and Jan;



Many thanks for your expertise in this area.   I begin to understand why 

this mag. coil assy. is so prone to failure as compared other manufacturers 

products.

Also realize my knowledge in this area is primitive at best and will rely on 

both of you to solve the mystery.



Best:

Walt

--

- The Matronics Yak-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Yak-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum