#1  
Old 03-15-2022, 11:18 AM
helmerrock helmerrock is online now
Senior Chief
 
Join Date: Jun 2004
Posts: 262
Default 67 GTO Engine wiring harness

67 GTO WT 400 (not HO) I’m replacing the solenoid on a Delco starter. The wiring harness has a 10 gage wire that is on the lug for the positive battery feed and a purple wire to the “S” terminal on the solenoid. Should there be a yellow wire to the “R” terminal? Haven’t had any issues running just the “S” but wonder if I am missing something. Does the original harness have both “S” and “R” wiring or does the harness route differently?

  #2  
Old 03-15-2022, 12:15 PM
"QUICK-SILVER" "QUICK-SILVER" is offline
Ultimate Warrior
 
Join Date: Feb 2008
Location: LaFayette Georgia
Posts: 5,512
Default

67 GTO didn't use the solenoid 'R' terminal.

IGN-1/Run and IGN-2/Crank both happen with the ignition switch

Clay

  #3  
Old 03-15-2022, 06:22 PM
helmerrock helmerrock is online now
Senior Chief
 
Join Date: Jun 2004
Posts: 262
Default

Thanks Clay!

I appreciate you taking time to respond

Steve

  #4  
Old 03-19-2022, 09:12 PM
ignaro's Avatar
ignaro ignaro is offline
Senior Member
 
Join Date: Jun 2015
Location: Torrance, CA
Posts: 109
Default

I'm trying to get my new engine build fired for the first time -- could you clarify how the ignition coil should be wired?
I have a Jegs SSR-III Ready-to-run distributor and Jegs High Output Ignition Coil

Does the positive terminal get JUST a 12v "crank" wire (spliced off the starter trigger wire in my case)? If so, how does it continue to make spark when the key returns to Ign-1/Run?
If not, what supplies power when the key is at the Run position? Is it the lower-voltage wire dangling in my engine bay? I have several wires with 12v at Ign1/Run but none have 12v while at Ign2/Crank.

I tried hooking up two 12v wires, one from the starter and one that supplies 12v during Run-- but that made the starter try to crank!-- clearly wrong.

Thank you for your help!

  #5  
Old 04-06-2022, 12:47 PM
DogMeister's Avatar
DogMeister DogMeister is offline
Senior Member
 
Join Date: Nov 2013
Location: Jasper, GA
Posts: 180
Default

The IGN2 terminal on the ignition switch supplies a full 12V to the coil during crank via the black/single yellow stripe wire. IGN1 supplies reduced voltage to the coil during run via the resistance wire which is "WHT. ORN. & PPL. CR. TR." according the the schematics, whatever color that is. If I recall the resistance wire may have a cloth wrap.

__________________
461 Stroker Built by Me -
Reply

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 -4. The time now is 08:58 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017