ForumsBasic TrainingOnline Maintenance ManualsThe M715 Zone Vin RegistryVPW's M715 Parts ListGalleriesLinks

Go Back   M715 Zone > General Tech > Stock Tech

Stock Tech Tech forums for Stock M715 series vehicles

Thread Tools Display Modes
Old June 17th, 2018, 06:41 PM
vitaminc914 vitaminc914 is offline
New Recruit
Join Date: May 2018
Location: Allendale, MI
Posts: 15
vitaminc914 is a Soldier
Default Identify this item?

I noticed this metal disc laying next to the distributor cap. I have no idea what it is. Can anyone help me identify it?
Attached Images
File Type: jpg IMG_5447.jpg (100.4 KB, 53 views)
67 M725 & 83 FJ60
Reply With Quote
Old June 17th, 2018, 07:48 PM
m38inmaine's Avatar
m38inmaine m38inmaine is offline

Join Date: Jun 2014
Location: Eastern Maine
Posts: 98
m38inmaine is a Soldier

Looks like some one has added some sort of outboard electronic ignition module.
Reply With Quote
Old June 18th, 2018, 12:33 PM
Don Cavey's Avatar
Don Cavey Don Cavey is offline
Staff Sergeant

Join Date: Jan 2011
Location: Fernandina Beach, FL
Posts: 4,055
Don Cavey is a Soldier

That looks like the ballast resistor that was under the coil in the earlier ignitors. Later ignitors did not have a ballast resistor. I guess it was built into the coil or the coil was designed to take the full 24 volts. I have an NOS ignitor, in the box and it does not have a ballast resistor.
Reply With Quote
Old June 18th, 2018, 02:51 PM
kwai's Avatar
kwai kwai is offline

Join Date: Dec 2006
Location: Houston, Tx
Posts: 3,065
kwai is a Soldier

Agree that is an external ballast resistor. Early coils had the external ballast resistor that sat underneath the coil in the ignitor. New coils have an internal ballast resistor and are taller than the early coils. My guess is that the PO put in a new coil and didn't know that the external ballast resistor was no longer needed and wired it in. But because the new coil is taller it had to be moved external to the ignitor.

Check if the coil is a newer style (fills up the ignitor space). If it is then you can relocate the external ballast resistor to the spare parts bin.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 11:46 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
1998 - 2019

This site is owned and operated by:
M715 Zone, LLC
President: Jon Schmidt, User ID=brute4c
If you have any suggestions, comments, problems or questions, contact:

Use of this site means you understand and agree to our TERMS OF USE

Copyright Notice:
This web site is subject to the protection of the copyright laws of the United States and other countries. Except for Personal Use Only, you may not modify, copy, distribute, transmit, display, perform, reproduce, publish, license, create derivative works from, transfer, or sell any information obtained from any part of the M715 Zone website without the prior written permission of M715 Zone, LLC.

Written permission can only be obtained by contacting

Copyright 1998-2019