65 mustang 1 wire alternator conversion - 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 01-29-2010, 01:40 PM
Registered User
 
Join Date: Feb 2006
Location: forked river new jersey
Posts: 50
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
65 mustang 1 wire alternator conversion

i have a stock 3 wire externally reg. alternator that just went bad so i want to update it with a powermaster 130amp 1 wire alt. to do this all i would have to do is remove the external reg and wire harness to the orig. alt. and put a 1 wire alt in place and run a wire from there to the starter solinoid?..do i need to you an inline fuse? am i missing anything?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-29-2010, 03:21 PM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,735
Wiki Edits: 0

Thanks: 2
Thanked 93 Times in 86 Posts
You might want to check this out www.dbelectrical.com put :ford one wire in search, great prices and quality. I moderate a Ford group on the HAMB with 240 members many of us use their products and are very satisfied,when you see the product it will explain the hook up,for more info call the 800 number,real nice people to deal with.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-31-2010, 05:39 PM
Member
 
Last photo:
Join Date: Nov 2004
Location: Lakeland FL
Age: 66
Posts: 4,110
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
"ALOT" more gooder is not always more good!!!

it was a 40amp alt so the harness was engineered for a max 40amp load (ex: #10 size black/yellow stripe wire main feed)

you need a max 50amp fuse or breaker at the alt post on a #4 wire to the solonoid to protect all of the constant hot (now degraded by age and use) harnesses ....

it was a stupid oem choice to run those batt hot wires down thru the lower rad support in just a taped bundle....

they are now totally shot and need to be replaced (and run along the top of the rad support),,,when you inspect them you will ask yourself how the hell did it run at all!!!

those wires (added resistance=more amps) condition have ruined the in the light's switch safety breaker contacts due to arcing,,,,plan on a new switch near future,,,they are not expensive...

somehow the contacts in the ign switch seem to survive pretty darn good,,,do a voltage drop test on it to confirm it is still in good shape...


only reason to have more than about a 60amp alt on your car is if you are adding a amplifier on a second independent primary circuit...
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-31-2010, 05:52 PM
Registered User
 
Join Date: Feb 2006
Location: forked river new jersey
Posts: 50
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
thanks for the caution.. i actually pulled out all the old wire and harness and the new powermaster alternator cam with appropriate size wire so im in good shape there.. i been told to run it directly to the pos. side batt. post and thats it..im done..is that true?
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-31-2010, 08:53 PM
Rickracer's Avatar
ASE Master Tech, Fabricator
 
Last wiki edit: Taurus 2-speed fan control wiring diagram Last photo:
Join Date: Jan 2010
Location: Kissimmee, Florida
Age: 55
Posts: 937
Wiki Edits: 8

Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by red65mustang
....only reason to have more than about a 60amp alt on your car is if you are adding a amplifier on a second independent primary circuit...
Or some higher amperage electric fans, for instance, the popular Taurus 2 speed fans pull about 45~50 amps by themselves on high....
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 01-31-2010, 08:56 PM
Registered User
 
Join Date: Feb 2006
Location: forked river new jersey
Posts: 50
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i do currently have an electric fan as well on the car and an electric fuel pump
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-01-2010, 06:45 AM
Member
 
Last photo:
Join Date: Nov 2004
Location: Lakeland FL
Age: 66
Posts: 4,110
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
add up just the basic fuses amps total amps in the original fuse panel is 38A (pic attached),,, so there is basically no harness reserve amps capacity left in the harness to safely add more high amps devices,,,

a 65 Mustang is truly a Falcon (under the skin) and the Falcon was engineered for lowest cost/lowest selling price

you want the pump and fans on a independent second main parallel feed circuit controlled by fuses and relays so the ign switch acts to be just a relay trigger switch worth of amps (<1A?) to operate the relays huge contacts (which provide actual amps needed capacity alt/batt direct to the pump and fan)....

ign switch contacts are rated to just carry dist-coil ign/wipers/heater blower/AC total load,,,they are about max'ed out

batt plus cable is direct from positive post to solonoid post so it doesn't matter which end you hook up the alt to.....
(actual wire run length to either connect point with the batt up front is roughly the same length so either is fine)

a very useful gift from me to you,,,,this link has absolutely excellent easy to read correct wiring diagrams for every/any part of the exact car:

http://www.hammar.dyndns.org/~djhamma/wiring.htm

to who ever reads this:
the cooling problem on 64-66 Mustangs/Comets/Falcons is in a large part due to another (what were they thinking!!!) engineering flaw....
both the inlet and outlets are on the same side of the rad,,,water will take the least resistance path so a good part of the coolant gpm's just goes directly down the open left side to the return hose....
they fixed that mistake starting in 67' when they made the first "ground up" mustang,,,L/R rad outlets and pump return...
which you can do on the earlier years cars....
(electric fan is engineering your way around the source problem)
Attached Thumbnails
Click image for larger version

Name:	fuses and breakers.JPG
Views:	315
Size:	150.6 KB
ID:	43588  

Last edited by red65mustang; 02-01-2010 at 07:00 AM.
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:
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
1 wire or 3 wire alternator??? oldguy829 Electrical 34 03-12-2013 11:47 AM
Starter Problems Jsquier Electrical 5 08-26-2007 06:32 PM
how to wire the back of 1965 Mustang alternator 200 ci 6cyl Ronald J Berry Sr Electrical 5 04-29-2007 08:11 PM
65 Mustang hood ornament cybercat133 Body - Exterior 3 01-29-2006 10:50 AM
65 Mustang Coupe milo75 Introduce Yourself 1 07-26-2005 10:07 PM


All times are GMT -6. The time now is 11:33 AM.


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.