Spark Plug Test / Double Spark

Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration
Model T Ford Forum: Forum 2016: Spark Plug Test / Double Spark
Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Osterman on Sunday, February 21, 2016 - 08:32 pm:

Rewired an old home made coil / spark plug tester today and tried it out. Only had a AA battery in the house, but got not only one spark .. but two!


sparky


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tony Bowker, Ramona, CA on Sunday, February 21, 2016 - 08:39 pm:

That is not considered a good thing. Most probably due to the lack of 0.005 clearance on the top contact of the coil......
More in the MTFCA electrical booklet.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Osterman on Sunday, February 21, 2016 - 09:06 pm:

I just grabbed an old spark plug out of a junk box. I never thought to adjust the gap, but it's interesting to see.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Dallas TX on Sunday, February 21, 2016 - 09:40 pm:

Looks like a mostly fouled plug. Try another one.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ron Patterson-Nicholasville, Kentucky on Sunday, February 21, 2016 - 10:35 pm:

Mark
To properly visualize coil output double sparking you need ta spark gap where you can view space and time relationship.
Your test fixture, just like a buzz box coil tester, only provides one dimension. Space and no time.
Ron the Coilman


Add a Message


This is a private posting area. Only registered users and moderators may post messages here.
Username:  
Password:

Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration