67 to 78 upgrade mtr trans - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old Jun 14th, 01, 12:08 PM Thread Starter
 
Join Date: Feb 2000
Location: PORTS ST. LUCIE FL. USA
Posts: 26
Question

what do you do for the hei wire and and does the purple and orange wire go on the starter?what else will i have to re wire or convert.please help me.im counting on you the car only runs if you keep the switch in the start position. so i think the problem must be the hei wire or the two wires on the starter solenoid.pleeeaaassseee help me.....
thank you for any response
sean
WOODY'S 67 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old Jun 14th, 01, 05:17 PM
Senior Tech
 
Join Date: Aug 1998
Location: abilene texas
Posts: 233
Post

woody
The HEI needs a full 12 volts whenever you have the key in the run or start position. You need to connect the BAT connection on the HEI to someplace that has 12 volts whenever the key is in the ON and Start positions. Many folks connect it to the ACCESSORIES connection on the fuse box. I think a 14 gauge wire will be OK.

Also don't use the original wire. It is a resistor wire and drops the voltage to about 8 or 9 volts - not enuff to properly run the HEI. I'm not sure about the starter wiring, but it should be OK if the key will turn the motor over. With the HEI you do not need a wire from the starter to the HEI.

------------------
Rick Schaefer
68 Camaro
72 El Camino
TPI350/700r4
rick is offline  
post #3 of 5 (permalink) Old Jun 15th, 01, 02:53 PM Thread Starter
 
Join Date: Feb 2000
Location: PORTS ST. LUCIE FL. USA
Posts: 26
Thumbs up

Thanks for the response now if i can figure a place to run the wire that runs 12volts in the start position i thought the wipers but bad idea i'll try the accessory in fuse panel. thanks for the help i hope someday i can help one fo ya'll

------------------
WOODY'S 67 is offline  
 
post #4 of 5 (permalink) Old Jun 15th, 01, 03:56 PM
Senior Tech
Carl
 
Join Date: Apr 1999
Location: Newbury Park, CA
Posts: 2,711
Post

Here's an old post of mine:

If you have a self-serve junkyard in your area, find a GM car with a similar body style and an HEI ignition. Remove the engine wiring harness and unwrap it. You only need the section from the HEI to the firewall so you can cut it out of the car as necessary.
Remove any sealant covering the wires as they enter the firewall plug. Using a very small flat-bladed screwdriver (eyeglass size), insert the blade just under the firewall plug wire for the + side of the ignition. This will release the wire from the firewall plug. Practice on a few of the other wires first so you can get the feel for how they remove. Now you have a splice-free wire to work with. Install this new wire into your orignal points wire location on your firewall plug and reseal the wire with silicone. Once you get the hang of it it will be very easy. You may want to buy the whole harness and use the extra wiring for future accessories since there are extra locations on the firewall connections that you can use, instead of drilling holes, to pass wiring through.


The purple wire triggers the starter. It should go on the small engine side post on the stock GM solenoid.

When converting to HEI you do not need the other small wire that attaches to the solenoid. This wire provides 12v to the coil during startup when a points ignition is used. It is likely that either you have your ignition wire attached to either the purple wire or the small wire and hence that is why the engine only runs in the start position.

Also, you cannot hook up an HEI ignition to any 12v source. It should be hooked up through the original 12v connection on the firewall engine plug for proper operation. If connected in the wrong place you will burn fuses or melt wiring. The wire should also be 12ga minimum.

A GM Factory Assembly Instruction Manual will be a lot of help. It has a basic wiring diagram that will help you locate the proper terminal on the firewall plug.

Good luck.

Carl

------------------
The Red Beast http://www.geocities.com/casanoc

[This message has been edited by CarlC (edited 06-15-2001).]
CarlC is offline  
post #5 of 5 (permalink) Old Jun 16th, 01, 11:18 AM Thread Starter
 
Join Date: Feb 2000
Location: PORTS ST. LUCIE FL. USA
Posts: 26
Cool

I WIRED TO THE IGNITION SWITCH AND IT WORKS I THINK I'LL DO THE JUNK YArd trick though that sound s pretty trick!!!

------------------
WOODY'S 67 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome