Re: Change external reg'd alternator to internal

Posted by Bob on December 04, 2004 at 15:06:36 from (66.163.134.177):

In Reply to: Change external reg'd alternator to internal posted by Tom S. in Tn. on December 04, 2004 at 13:07:42:

I assuming you're talking about a Ford truck?

The easiest internally regulated alternator to install would be a GM 10SI, that was used on GM cars and trucks from the mid-70's to the mid 80's+, or a similar, but heavier-duty 12SI.

Hook the present large alternator output wire to the large stud on the Delco, and run a jumper wire from the large stud to the #2 terminal on the alternator.

If you now have an "idiot light" in the dash, disconnect the idiot light wire from the old voltage regulator, and connect it to the #1 wire on the new Delco alternator.

If you do not now have an idiot light, find a source of battery voltage that is switched "ON" with the key. Run that through a "idiot light" or "side marker light", using a #194 bulb, to the #1 alternator terminal.

Alternately, you can put a diode in the wire from the switched 12 Volts to the #1 terminal. For reliability, use a 4 or 5 Amp 1000 PIV diode. The cathode end should be marked with a white band, and that end goes toward the #1 terminal.

This basic hookup generally works well. If you want a little more elaborate system with remote voltage sensing, look HERE:

http://www.madelectrical.com/electrical-tech.shtml

If you wish to use a Ford internally regulated alternator, you'll have to post more information, as Ford hookups may vary a bit.

• Alternator tech

Follow Ups:

• Re: Change external reg'd alternator to internal Tom S. in Tn. 12:02:19 12/05/04 (2)
  • Re: Change external reg'd alternator to internal Jon H 20:39:24 12/05/04 (1)
    • Motorcraft vs Delco Tom S. in Tn. 06:34:06 12/06/04 (0)
• Re: Change external reg'd alternator to internal JMOORE 18:18:58 12/04/04 (0)

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]