Brought to you in part by:

.

Shop Eastwood for your Auto Restoration Needs!


  Mustangsandmore Forums
  '64 1/2 to '73 -- The Classic Mustang
  Alternator question. (need answer quick)

Post New Topic  Post A Reply
profile | register | preferences | faq | search

UBBFriend: Email This Page to Someone! next newest topic | next oldest topic
Author Topic:   Alternator question. (need answer quick)
iamblackjack
Gearhead

Posts: 190
From: A small town in South East Texas.............Houston.
Registered: Jan 2002

posted 08-09-2002 07:49 PM     Click Here to See the Profile for iamblackjack   Click Here to Email iamblackjack     Edit/Delete Message   Reply w/Quote
This isn't on a Mustang, but the sooner I get it fixed, the sooner I can get back to working on my Mustang.
It's on an '82 CJ7. I've never seen something with so much duct tape and scabbed on wires.
It's internally regulated. There's a #10 wire that goes from the alt. to the battery and then to the fuse block. There are two spade plugs on the side of the alternator. One loops right back to the #10 wire. The other is the one in question.
I've traced it out and it goes through numerous "connections" (the after market kind). None of which are on the schematics (Haynes manual).
Haynes lists it as "brown 18 (resistance 15)". I assume that is 18 gage and 15 ohms of resistance. It reads 266 ohms to ground. It will not charge with this wire plugged in, but if I jumper it straight to a 12 volt sorce, it will. I'm sure that the 12 volt sorce is supposed to be "on" when the ignition is on, based on the fact that it slightly arcs when the engine is off and I remove the wire. I don't want to burn up the alt. or the Jeep.

Does anyone have any input on this?

PS. Another good reason to get it fixed is because I've loaned him my truck until I get it fixed. D*** I'm a nice guy.

Thanks, Kirk

IP: Logged

SteveLaRiviere
Administrator

Posts: 33988
From: Saco, Maine
Registered: May 99

posted 08-09-2002 08:43 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Where does it lead to?

I bet SteveW can help you, he's a jeepster.

------------------
All Fords since 1977!

IP: Logged

steve'66
Gearhead

Posts: 6602
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-09-2002 08:48 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
I'll go look on my '79

Be right back....

SteveW

IP: Logged

SteveLaRiviere
Administrator

Posts: 33988
From: Saco, Maine
Registered: May 99

posted 08-09-2002 08:53 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
That SteveW is a good dude!

------------------
All Fords since 1977!

IP: Logged

steve'66
Gearhead

Posts: 6602
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-09-2002 09:08 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
OK,

It is a blue wire w/black trace. It goes to the bottom left position of the two junction blocks on the firewall to the driver's side of the master cylinder. I didn't trace it under the dash.

Does this help?

SteveW

IP: Logged

iamblackjack
Gearhead

Posts: 190
From: A small town in South East Texas.............Houston.
Registered: Jan 2002

posted 08-09-2002 09:53 PM     Click Here to See the Profile for iamblackjack   Click Here to Email iamblackjack     Edit/Delete Message   Reply w/Quote
I'm pretty sure that it's hot when the ignition is on. I'm just concerned about the book saying "(resistance 15)". Is this a current limiting resister, I wonder? I hate to just hook it to a switched hot and burn it up. But at the same time, it IS internally regulated. So it should take care of it's self....right?

I'm probably over thinking all of this though. I work on stuff that is ten times as complex as this Jeep.

BTW...They also used Motorcraft alt.s on the jeeps identical to the one on my Mustang. And I happen to have a brand new one. I just couldn't find my voltage regulator. I think that I threw it away. I plan to put a one wire alt. on my car when I put it back together.

Kirk.

IP: Logged

All times are ET (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | Mustangsandmore Front Page

Copyright 2003, Steve LaRiviere. All Rights Reserved.


Ultimate Bulletin Board 5.47d

Amazon Honor System Click Here to Pay Learn More

[Build a free Mustangsandmore.ws Home Page!]

[About M&M][Acronyms][Calendar][Chat][Classifieds] [Members' Pics] [M&M Mug Shots]

[ Mustangsandmore.com Bookstore] [Mustangsandmore.com T-Shirts][Tech Articles]