Help installing new '69 engine harness - Chevelle Tech
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post #1 of 15 (permalink) Old Feb 12th, 14, 8:46 PM Thread Starter
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Chris
 
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Help installing new '69 engine harness

I purchased a lovely new engine harness (setup for HEI) for my '69 El Camino. My car is an idiot light car, much like it's owner...

I'm an idiot because I removed the old harness without marking where things went. While the new harness is color-coded, I'm having a little bit of trouble deciphering where things actually go.

The AIM has some info, but it's black and white and doesn't seem complete to my untrained eye. Here is what the AIM shows:
  1. Starter motor (two wires plus battery cable)
  2. Blower motor (one plug)
  3. Wiper motor (three plugs?)
  4. Oil pressure switch (one plug)
Here is what I can see on the harness itself:
  • Two-wire plug (pink & yellow)
  • Single-wire plug (light blue)
  • Two-wire plug (dk. blue & yellow), which is linked to...
  • ...a three-wire plug (2x yellow, black)
  • Single-wire plug (dk. blue)
  • Two single-wire ring terminals (yellow & purple)
  • Single-wire plug (orange)
I think one of the single-wire plugs (the orange one) is for the brake light switch. I think two of the two-wire plugs (presumably the linked ones) is for the wiper motor -- I have non-hidden wipers. I think the two single-wire ring terminals are for the starter motor, though I don't know which are which.

So that leaves me with the oil pressure switch (which has to be a one-terminal plug) and to figure out how to wire the distributor -- I'm running a HEI distributor from a '79 Camaro.

What about the alternator? I'm using a 10Si alternator, which is now internally-regulated.

I also have a new forward lamp harness to go on too, but that's for another day
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post #2 of 15 (permalink) Old Feb 13th, 14, 12:11 AM
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Donny
 
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Re: Help installing new '69 engine harness

Quote:
Originally Posted by number9 View Post
I purchased a lovely new engine harness (setup for HEI) for my '69 El Camino. My car is an idiot light car, much like it's owner...

I'm an idiot because I removed the old harness without marking where things went. While the new harness is color-coded, I'm having a little bit of trouble deciphering where things actually go.

The AIM has some info, but it's black and white and doesn't seem complete to my untrained eye. Here is what the AIM shows:
  1. Starter motor (two wires plus battery cable)
  2. Blower motor (one plug)
  3. Wiper motor (three plugs?)
  4. Oil pressure switch (one plug)
Here is what I can see on the harness itself:
  • Two-wire plug (pink & yellow) ..."Bat" on the distributor
  • Single-wire plug (light blue) ...Wiper motor
  • Two-wire plug (dk. blue & yellow), which is linked to... Washer pump
  • ...a three-wire plug (2x yellow, black).... wiper motor
  • Single-wire plug (dk. blue)... Oil pressure
  • Two single-wire ring terminals (yellow & purple) Yellow to starter R terminal, purple the starter S terminal
  • Single-wire plug (orange)... blower motor if a non A/C car.
I think one of the single-wire plugs (the orange one) is for the brake light switch. I think two of the two-wire plugs (presumably the linked ones) is for the wiper motor -- I have non-hidden wipers. I think the two single-wire ring terminals are for the starter motor, though I don't know which are which.

So that leaves me with the oil pressure switch (which has to be a one-terminal plug) and to figure out how to wire the distributor -- I'm running a HEI distributor from a '79 Camaro.

What about the alternator? I'm using a 10Si alternator, which is now internally-regulated.

I also have a new forward lamp harness to go on too, but that's for another day

See above in RED!

Donny
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post #3 of 15 (permalink) Old Feb 13th, 14, 5:33 PM Thread Starter
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Chris
 
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Re: Help installing new '69 engine harness

Quote:
Originally Posted by aawtech View Post
See above in RED!

Donny
Thank you so much Donny! Everything seems to line up great

I guess now I have more questions. Where does the alternator hook up to? And how does an ignition "key" get to the distributor? And what about the brake light switch? I checked my new forward lamp assay. harness and it appears to have the alternator wire on it -- a thick red wire with a ring terminal and a rubber boot.
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post #4 of 15 (permalink) Old Feb 13th, 14, 6:02 PM
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Levon
 
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Re: Help installing new '69 engine harness

Thick red with ring goes on the alternator if it extends over to the alternator. Should have a white/blue pair with it. If it is a single red and what is it in proximity to? The battery?, voltage regulator/horn relay?

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post #5 of 15 (permalink) Old Feb 17th, 14, 9:44 AM Thread Starter
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Chris
 
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Re: Help installing new '69 engine harness

Quote:
Originally Posted by LevonH View Post
Thick red with ring goes on the alternator if it extends over to the alternator. Should have a white/blue pair with it. If it is a single red and what is it in proximity to? The battery?, voltage regulator/horn relay?
Thanks Levon. My alternator is internally-regulated, and has a two-pin connector in the top of it. Where am I supposed to plug that in? This is the plug that I mean:



It's a Delco 10Si that I rebuilt.
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post #6 of 15 (permalink) Old Feb 17th, 14, 10:02 AM
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Levon
 
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Re: Help installing new '69 engine harness

Do a search on this Site and you will have to do an adapter at the old regulator location and at the alternator.

Heres one of many threads:

https://www.chevelles.com/forums/showthread.php?t=268872

Levon Hovagimian
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post #7 of 15 (permalink) Old Feb 17th, 14, 10:10 AM Thread Starter
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Chris
 
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Re: Help installing new '69 engine harness

Quote:
Originally Posted by LevonH View Post
Do a search on this Site and you will have to do an adapter at the old regulator location and at the alternator.

Heres one of many threads:

https://www.chevelles.com/forums/showthread.php?t=268872
Thanks Levon!
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post #8 of 15 (permalink) Old Feb 17th, 14, 2:52 PM Thread Starter
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Chris
 
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Re: Help installing new '69 engine harness

So this is from the thread that Levon mentioned:

Quote:
Originally Posted by Schurkey View Post
I'd love to see a photo or have a link.

Are you talking about this? NAPA ECH VRC148 (under $5)


It won't work with the "old" alternator; it plugs into the internally-regulated alternator. The red wire goes to the output terminal if you want to bypass the advantages of remote voltage sensing. The white wire runs the dash light when spliced into the vehicle harness.

This does NOT convert the alternator into a "1 wire" unit. It just gives you the two smaller wires in a fresh 'n' clean package.
What are the advantages/disadvantages of remote voltage sensing?
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post #9 of 15 (permalink) Old Mar 1st, 14, 3:49 PM Thread Starter
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Chris
 
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Re: Help installing new '69 engine harness

My starter motor doesn't seem to be labeled (it's brand new). Which terminal is which?
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post #10 of 15 (permalink) Old Mar 1st, 14, 3:51 PM
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Re: Help installing new '69 engine harness

Big pole in center is battery; pole with "S" is purple wire. "R" is yellow.

Levon Hovagimian
Team Chevelle #279
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post #11 of 15 (permalink) Old Mar 1st, 14, 4:27 PM Thread Starter
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Chris
 
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Re: Help installing new '69 engine harness

Quote:
Originally Posted by LevonH View Post
Big pole in center is battery; pole with "S" is purple wire. "R" is yellow.
Levon, my poles aren't labeled that I can see

This is the back of my starter:



I found this on Google. Does it look right?

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post #12 of 15 (permalink) Old Mar 1st, 14, 7:14 PM
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Levon
 
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Re: Help installing new '69 engine harness

Well that is the picture I was going to send you.

Levon Hovagimian
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To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

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post #13 of 15 (permalink) Old Mar 1st, 14, 8:14 PM
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Hank
 
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Re: Help installing new '69 engine harness

American Autowire and M&H make their factory style harnesses for the 3 different types of GM alternators that can be used in our cars. When you order it you have to specify which alternator your using to get the right harness. Same goes for HEI or points distributor.

Last edited by HKalin; Mar 1st, 14 at 10:41 PM.
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post #14 of 15 (permalink) Old Mar 1st, 14, 9:46 PM
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Lewis
 
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Re: Help installing new '69 engine harness

Try looking here for a wiring diagram. I recently did my 68 using these guys harness and it was very simple for an idiot like me, only because they sent color diagrams though! lol

Mine is the same set up, hei, internal reg alternator. Im working tonight or i would go take a picture for you

good luck!


http://www.americanautowire.com/kit-...velle&find=any

Lewis
68' was a great year, would have been cool if I was there!
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post #15 of 15 (permalink) Old Mar 1st, 14, 9:55 PM
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Lewis
 
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Re: Help installing new '69 engine harness

Here is a picture from AAWs site, hope it helps
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Lewis
68' was a great year, would have been cool if I was there!
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