68 ignition wiring question - Camaro Forums - Chevy Camaro Enthusiast Forum


Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 08-22-2012, 02:31 PM
camaroboy68ss's Avatar
June 2010 ROTM
Ride of the Year 2010
ROTM Winner's Club
Thread Starter

 
Join Date: Apr 2009
Location: Hillsboro Oregon
Posts: 1,429
Default 68 ignition wiring question

There are 2 wires to the hot side of the coil. One is ignition I know but what is the other wire for? The colors are yellow and a pinkish red
Reply With Quote
  #2  
Old 08-22-2012, 03:18 PM
Camaro 69's Avatar
Senior Moderator
January 2010 ROTM Winner
 
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 17,844
Default

There is a secondary wire coming from the "R" terminal of the starter, to give the coil a full 12 volts only while cranking, so the engine will start. The other is the "run" resistance wire, which feeds the coil 10 or slightly less volts.
Reply With Quote
  #3  
Old 08-22-2012, 11:06 PM
camaroboy68ss's Avatar
June 2010 ROTM
Ride of the Year 2010
ROTM Winner's Club
Thread Starter

 
Join Date: Apr 2009
Location: Hillsboro Oregon
Posts: 1,429
Default

ok thanks i figured it out as well since i got under the car today. I still have a problem of a random misfire and shutdown. the car starts great and runs great but randomly if idleing it just shuts down or when driving it shutsdown since it is in gear the motor turns over pumping more gas and then will refire and POW backfire. have check fuel for vapor lock but the car will instanly refire after backfiring so its in the ignition. I have replaced the coil, condinser, wires, plugs were all fine and chocolate brown and gaped fine. today i even bypassed the resistor wire and added a old porcalin one to see if the wire is bad and still has the problem. so now going to try new points and then im out of ideas after that.
Reply With Quote
  #4  
Old 08-23-2012, 08:46 AM
Camaro 69's Avatar
Senior Moderator
January 2010 ROTM Winner
 
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 17,844
Default

If the points don't do it, it could still be a fuel problem. When it shuts down while idling, have you checked to see if there's still gas in the carb by removing the air cleaner and looking down the carb while pumping the linkage by hand? Is she still squirting then?
Reply With Quote
  #5  
Old 08-23-2012, 09:23 AM
camaroboy68ss's Avatar
June 2010 ROTM
Ride of the Year 2010
ROTM Winner's Club
Thread Starter

 
Join Date: Apr 2009
Location: Hillsboro Oregon
Posts: 1,429
Default

yeah i have. i first thought it was fuel so checked everything there since i hate wiring. ive cleaned the carb 3 times i have replaced the tank (needed to anyway had a huge dent in it) changed filters. if it was fuel the car shouldt fire right back up after backfiring i can just hit the key and it refires. so its something in the ignition. it might be the switch ill try that i guess if the points dont work.
Reply With Quote
  #6  
Old 08-23-2012, 09:52 AM
Camaro 69's Avatar
Senior Moderator
January 2010 ROTM Winner
 
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 17,844
Default

Hot-wire the coil directly from the battery, being sure to use your ballast resistor so you don't toast the points.
If it still kills, you can rule out the switch.
Reply With Quote
  #7  
Old 08-23-2012, 10:56 PM
camaroboy68ss's Avatar
June 2010 ROTM
Ride of the Year 2010
ROTM Winner's Club
Thread Starter

 
Join Date: Apr 2009
Location: Hillsboro Oregon
Posts: 1,429
Default

well it was the switch. hot wired from the battery to the resistor and ran perfect so ordered a new delco switch should be here next week.
Reply With Quote
  #8  
Old 08-30-2012, 03:25 PM
Smee78's Avatar
1st Gear Member

 
Join Date: Dec 2009
Location: Summerville,SC
Posts: 141
Default

I love a story with a happy ending.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1969 rs ignition coil wiring socalrs 67-69 General 10 05-07-2011 07:31 PM
3.4 Fuel and ignition wiring harness ?? BudwyzerChic 93-02 V6 Tech 0 01-04-2010 09:25 PM
Ignition Wiring uestraven General Tech 1 11-09-2009 02:11 PM
Ignition Wiring Help uestraven 70-81 V8 Tech 0 11-09-2009 01:33 PM
Ignition Control Module Wiring Diagram 3.8 V6 93-02 V6 Tech 0 07-15-2007 02:30 AM


Tags
1968, 68, camaro, camero, coil, hot, ignition, ingition, pictures, pinout, pinouts, problems, starter, switch, wire, wiring, yellow

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 03:10 PM.