#1  
Old 11-26-2021, 06:20 PM
topfuel67 topfuel67 is offline
Senior Member
 
Join Date: Feb 2015
Posts: 202
Default 1966 Rally Tach wiring harness

I'm trying to get my wiring as correct as possible. On page 15-14 of the shop manual it shows this round object. Is this just a grommet where it goes into the firewall or is this some sort of resistor or a rotator splint of some sort?
So far I really only have part of the brown wire that hooks into the back of the Tach and then basic black wire spliced in. I see a repro kit that has the wiring from the coil to a clip, but don't know where that clip goes according to the wiring diagram here
Attached Thumbnails
Click image for larger version

Name:	IMG_20211126_141053931.jpg
Views:	87
Size:	67.0 KB
ID:	578619  

  #2  
Old 11-26-2021, 06:28 PM
padgett's Avatar
padgett padgett is offline
Senior Chief
 
Join Date: May 2021
Posts: 467
Default

Depends on which tach you have. Ones with passive circuits are for points ignitions but the Delcotronic tachs (have seen for 65s) have an extra power lead.

__________________
Orlando - Where rust must be imported.
Web Site


  #3  
Old 11-26-2021, 07:44 PM
60sstuff's Avatar
60sstuff 60sstuff is offline
Ultimate Warrior
 
Join Date: Sep 2002
Location: Left Coast
Posts: 2,784
Default

Quote:
Originally Posted by topfuel67 View Post
I'm trying to get my wiring as correct as possible. On page 15-14 of the shop manual it shows this round object. Is this just a grommet where it goes into the firewall or is this some sort of resistor or a rotator splint of some sort?
So far I really only have part of the brown wire that hooks into the back of the Tach and then basic black wire spliced in. I see a repro kit that has the wiring from the coil to a clip, but don't know where that clip goes according to the wiring diagram here
If you scroll further down page one and see a thread on 10-26-21 there’s talk on the round grommet that’s used for the under hood lamp Black wire or the tachometer Brown wire.

__________________
1) 65 GTO Survivor. 43,440 Original Miles. “Factory” Mayfair Maize Paint with Black Pinstripe, Black Cordova Top, Black Interior, OEM Numbers Matching Powertrain. Purchased from the Lady that bought it new. Baltimore Built (11A).
2) 66 GTO Survivor. “Factory” Cameo Ivory Paint with Red Pinstripe, Red Interior. OEM Numbers Matching Powertrain. Tri-Power (OEM Vacuum Linkage), Automatic "YR" code (1759 Produced). Fremont Built (01B), with the Rare 614 Option.
  #4  
Old 11-26-2021, 08:27 PM
topfuel67 topfuel67 is offline
Senior Member
 
Join Date: Feb 2015
Posts: 202
Default

Mine is the standard ignition. Thanks for the replies.

  #5  
Old 11-27-2021, 05:27 PM
Jeff Hamlin's Avatar
Jeff Hamlin Jeff Hamlin is offline
Ultimate Warrior
 
Join Date: Jan 2000
Location: Beach side of Virginia
Posts: 9,371
Arrow ...

...
Attached Thumbnails
Click image for larger version

Name:	65-67 FIREWALL ACC WIRE GROMMET  (4).jpg
Views:	91
Size:	207.4 KB
ID:	578682   Click image for larger version

Name:	65-67 FIREWALL ACC WIRE GROMMET  (3).jpg
Views:	82
Size:	91.4 KB
ID:	578683   Click image for larger version

Name:	65-67 FIREWALL ACC WIRE GROMMET  (1).jpg
Views:	70
Size:	55.0 KB
ID:	578684   Click image for larger version

Name:	65-67 FIREWALL ACC WIRE GROMMET  (2).jpg
Views:	62
Size:	46.2 KB
ID:	578685  

__________________
When I die, I want to go peacefully like my grandfather did, in his sleep.
Not screaming like the passengers in his car.
  #6  
Old 11-28-2021, 01:04 PM
topfuel67 topfuel67 is offline
Senior Member
 
Join Date: Feb 2015
Posts: 202
Default

Thank you for the pics. I'll search Ames for that part number. Ames is the best price I have found for the Tach wiring harness too.

  #7  
Old 01-14-2022, 03:03 PM
topfuel67 topfuel67 is offline
Senior Member
 
Join Date: Feb 2015
Posts: 202
Default

I ordered the grommet from Ames along with the correct wiring and installed it. Everything looks great. Just found the original grommet at the bottom of one of my bins that I put all the parts in when I tore it apart a few years back. Same thing happened with the windshield wiper transmission clip. Searched and searched, ordered the replacement then found my original. Just had to share.

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 04:59 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