Ignition switch with ground terminal

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 2012: Ignition switch with ground terminal
Top of pagePrevious messageNext messageBottom of page Link to this message  By Kevin R Bligh Carson Washington on Wednesday, May 30, 2012 - 09:34 am:

Have a rectangular ignition switch/ammeter that has a ground terminal on back of switch .All other terminals are there also.7 terminals total Correct for '25 coupe?Thanks Kevin


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Smith on Wednesday, May 30, 2012 - 11:20 am:

I've seen those. A regular T switch, I believe doesn't have a ground, but as I recall, the pattern is the same, you just don't need to use it.


Top of pagePrevious messageNext messageBottom of page Link to this message  By James A. Golden on Wednesday, May 30, 2012 - 12:58 pm:

You could use the ground terminal for a dash light. That bulb has two contacts and needs a ground.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Robert E. (Bob) Blackbourn, Gautier Ms. on Wednesday, May 30, 2012 - 02:59 pm:

That terminal is not itself a ground terminal. It is for connecting TO ground. When connected to ground it grounds the the ignition coil box input terminal when the key is in the OFF position. This provides a measure of anti-theft. Without this the ignition switch can be easily bypassed with a jumper wire from the "battery" terminal on the terminal block to the "switch" terminal on the coil box.
I don't think many of today's car theives are aware of this however!

Regards, Bob


Posting is currently disabled in this topic. Contact your discussion moderator for more information.
Topics Last Day Last Week Tree View    Getting Started Formatting Troubleshooting Program Credits    New Messages Keyword Search Contact Moderators Edit Profile Administration