The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-28-2014, 09:48 PM   #1
barmanvarn
Registered User
 
barmanvarn's Avatar
 
Join Date: Nov 2014
Location: Sherwood, AR
Posts: 189
Can you identify this wire?

Working on my dads '69 GMC. Sometimes it's hard to tell what is stock and what is some kluge he did at some point in the past.

Found this "hub" in the passenger side right next to the battery tray.

Edit: no idea why the pic is upside down. Am posting from my mothers ipad so am limited in what I can do. Sorry

Name:  image.jpg
Views: 356
Size:  42.4 KB

The hub has 3 wires coming out of it. One goes down to the passenger headlights ( I think), 1 runs across the grill and looks like it runs through the firewall. The remaining wire is loose and dad says he thinks it goes to the battery positive.

Any ideas?

Thanks.
barmanvarn is offline   Reply With Quote
Old 11-28-2014, 10:05 PM   #2
1972BlueC20
Registered User
 
1972BlueC20's Avatar
 
Join Date: Jun 2014
Location: Houston, Texas
Posts: 722
Re: Can you identify this wire?

That "hub" is the battery junction block. As for the wire, I'm not sure. I'm sure someone will chime in with the answer shortly. Maybe try searching junction block and there may be a wiring diagram.
__________________
1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559
1972BlueC20 is offline   Reply With Quote
Old 11-28-2014, 10:16 PM   #3
barmanvarn
Registered User
 
barmanvarn's Avatar
 
Join Date: Nov 2014
Location: Sherwood, AR
Posts: 189
Re: Can you identify this wire?

Quote:
Originally Posted by 1972BlueC20 View Post
That "hub" is the battery junction block. As for the wire, I'm not sure. I'm sure someone will chime in with the answer shortly. Maybe try searching junction block and there may be a wiring diagram.
Thanks. Not used to older vehicles so just seems so odd to me. Not used to seeing extra wires coming off the battery.
barmanvarn is offline   Reply With Quote
Old 11-28-2014, 10:40 PM   #4
FirstOwner69
Senior Member
 
FirstOwner69's Avatar
 
Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,842
Re: Can you identify this wire?

Your dad is right... dads always are!

There should be a wire that goes from the positive cable to the junction block. It's actually a fusible link. Here's a picture of the battery end of the original positive cable from my 69 that shows the fusible link.
Attached Images
 
FirstOwner69 is offline   Reply With Quote
Old 11-28-2014, 10:46 PM   #5
1972BlueC20
Registered User
 
1972BlueC20's Avatar
 
Join Date: Jun 2014
Location: Houston, Texas
Posts: 722
Re: Can you identify this wire?

Quote:
Originally Posted by FirstOwner69 View Post
Your dad is right... dads always are!

There should be a wire that goes from the positive cable to the junction block. It's actually a fusible link. Here's a picture of the battery end of the original positive cable from my 69 that shows the fusible link.

FirstOwner69 to the rescue once again!!

__________________
1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559
1972BlueC20 is offline   Reply With Quote
Old 11-28-2014, 11:17 PM   #6
jjzepplin
Registered User
 
jjzepplin's Avatar
 
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,553
Re: Can you identify this wire?

Yup. He's right. That's the link to the whole trucks electrical system.
__________________
70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller
72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build
Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350
jjzepplin is offline   Reply With Quote
Old 11-29-2014, 11:41 AM   #7
barmanvarn
Registered User
 
barmanvarn's Avatar
 
Join Date: Nov 2014
Location: Sherwood, AR
Posts: 189
Re: Can you identify this wire?

Thanks for the info folks. Much appreciated.

Am hoping today I can attempt to start the engine up.
barmanvarn is offline   Reply With Quote
Old 11-29-2014, 01:03 PM   #8
GuyO
Registered User
 
GuyO's Avatar
 
Join Date: Nov 2011
Location: Kirkland, WA
Posts: 343
Re: Can you identify this wire?

Also, make sure it is actually "fusible link' wire and not just "wire". Fusible Link is the protection from fire due to electrical short. You can buy Fusible Link wire at the auto parts store.
GuyO is offline   Reply With Quote
Old 11-29-2014, 02:54 PM   #9
magwakeenercew2jh
RAT1968 '68 Cab/'71 Parts
 
magwakeenercew2jh's Avatar
 
Join Date: Feb 2002
Location: Coarsegold, CA
Posts: 2,375
Re: Can you identify this wire?

Quote:
Originally Posted by barmanvarn View Post
Edit: no idea why the pic is upside down. Am posting from my mothers ipad so am limited in what I can do. Sorry
You've already been well advised.

But, here's the "fixed" pic.
Attached Images
 
__________________
M17
Coarsegold, CA
RAT's shiny now.
But always a rat.
magwakeenercew2jh is offline   Reply With Quote
Old 11-29-2014, 09:16 PM   #10
barmanvarn
Registered User
 
barmanvarn's Avatar
 
Join Date: Nov 2014
Location: Sherwood, AR
Posts: 189
Re: Can you identify this wire?

Quote:
Originally Posted by magwakeenercew2jh View Post
You've already been well advised.

But, here's the "fixed" pic.
Ha! Thanks!

Had to take a pic of my iphone from my mother's iPad in order to post that.
__________________
Brian
'69 GMC C15
Inline 6, 230ci (possibly 250ci)
barmanvarn is offline   Reply With Quote
Reply

Bookmarks


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 12:36 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com