One wire alternator - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-08-2008, 08:43 AM
Irelands child's Avatar
Registered User
 
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 4,907
Wiki Edits: 8

Thanks: 14
Thanked 203 Times in 184 Posts
One wire alternator

Currently, I'm stuck with a one wire alternator (Powermaster 100 amp and too many $$$$$ to change), but may change in the future if unhappy.

The wire, a 7ga was in my hand and about to be installed when I had a brainstorm (or possibly something else). With my battery about as far away from the alternator as possible and still inside of the car, I would most likely need a heavier wire. Instead of going clear back to the battery, or in this case, why not use the connection to my Ford SVT mini starter. These new Ford starters have full power at all times. It uses the starter mounted solenoid to activate it. There is another Ford style solenoid at the battery, but it is used solely as a terminal post and a relay for the starter mounted solenoid. Connections from the starter to the battery are 1ga.

I know, confusing, but I can't think of any reason that this wouldn't work.

Dave W

    Advertisement
__________________
Irelands child
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-08-2008, 04:00 PM
Frisco's Avatar
Glad To Be Here
 
Last photo:
Join Date: Nov 2002
Location: Canton, North Carolina
Age: 72
Posts: 2,244
Wiki Edits: 0

Thanks: 0
Thanked 8 Times in 8 Posts
Quote:
Originally Posted by Irelands child
Currently, I'm stuck with a one wire alternator (Powermaster 100 amp and too many $$$$$ to change), but may change in the future if unhappy.

The wire, a 7ga was in my hand and about to be installed when I had a brainstorm (or possibly something else). With my battery about as far away from the alternator as possible and still inside of the car, I would most likely need a heavier wire. Instead of going clear back to the battery, or in this case, why not use the connection to my Ford SVT mini starter. These new Ford starters have full power at all times. It uses the starter mounted solenoid to activate it. There is another Ford style solenoid at the battery, but it is used solely as a terminal post and a relay for the starter mounted solenoid. Connections from the starter to the battery are 1ga.

I know, confusing, but I can't think of any reason that this wouldn't work.

Dave W
You are correct in your assumption. The HOT wire from the alternator can be connected directly to the battery cable that is connected to the starter solenoid coming from the battery. This will keep the connection fairly short as well as out of the interior of your roadster. You might consider adding a fusible link at the connection to the starter solenoid.

Last edited by Frisco; 07-08-2008 at 04:06 PM. Reason: added additional info about fusible link
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-08-2008, 04:57 PM
Irelands child's Avatar
Registered User
 
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 4,907
Wiki Edits: 8

Thanks: 14
Thanked 203 Times in 184 Posts
Quote:
Originally Posted by Frisco
You are correct in your assumption. The HOT wire from the alternator can be connected directly to the battery cable that is connected to the starter solenoid coming from the battery. This will keep the connection fairly short as well as out of the interior of your roadster. You might consider adding a fusible link at the connection to the starter solenoid.
Thanks - thought so - but wont use a fusible link - in anything. I will have a Maxi-Fuse in that line though.

Dave W
__________________
Irelands child
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-08-2008, 05:58 PM
T-bucket23's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 57
Posts: 5,154
Wiki Edits: 26

Thanks: 7
Thanked 109 Times in 94 Posts
I am worried that you may be putting a lot of current through a connection point with a lot of wires and the potential for corrosion or loosening up. This could cause heat it the connection becomes loose or dirty.
With the charging wire the fewer connections the better in my opinion

CHet
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-09-2008, 06:23 AM
Irelands child's Avatar
Registered User
 
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 4,907
Wiki Edits: 8

Thanks: 14
Thanked 203 Times in 184 Posts
Chet - There will be only the two connections on that 3/8" post. One is used intermittently, the starter, and the second during engine operation. I use star locks on these heavy gauge wires and very good ring terminals to ensure good contact as well as a silicone electrolytic grease.

Dave W
__________________
Irelands child
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Alternator excitor wire voltage guba_unus Electrical 9 05-01-2008 04:30 PM
3 wire alternator hookup GCD1962 Electrical 10 04-21-2008 08:29 PM
One Wire Alternator?? budthespud Electrical 9 11-24-2007 08:06 AM
Wiring a 1 wire alternator and starter 71novactb Electrical 7 02-09-2007 09:14 PM
alternator wire hanging in mid air?! pcoghlan Electrical 11 03-21-2006 02:47 PM


All times are GMT -6. The time now is 06:41 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.