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General Information => Upgrades (non engine related ) => Topic started by: colectb on July 28, 2009, 04:55:31 pm

Title: Creating a W terminal on alternator.
Post by: colectb on July 28, 2009, 04:55:31 pm

So does anyone know how to, or have a link to a good write-up with pictures on how to wire in a W terminal to an alternator without one? Thanks alot!

Title: Re: Creating a W terminal on alternator.
Post by: lovinthedeez on July 28, 2009, 06:30:05 pm

by reading your post, i'm assuming that you don't have the w terminal on your alternator, this post should help its in the FAQ :P
http://www.vwdiesel.net/forum/index.php?topic=3741.0

Title: Re: Creating a W terminal on alternator.
Post by: Vincent Waldon on July 28, 2009, 08:49:33 pm

I don't think I've actually seen a pictoral how-to... will have to do one up some day with a junk alternator... but the schematic looks like this:

(http://i197.photobucket.com/albums/aa85/vwaldon/W-terminal.jpg)

Tap into a field coil wire that runs to a diode bridge and bob's your uncle.

Title: Re: Creating a W terminal on alternator.
Post by: colectb on July 28, 2009, 09:00:34 pm

Ok thanks, I'll probably be opening up my junk alternator to attempt this sometime this/next week, and I'll be posting pictures along the way, probably asking for some guidance. Thanks alot!

Title: Re: Creating a W terminal on alternator.
Post by: Vincent Waldon on July 28, 2009, 09:06:36 pm

Yup, if you can post a clear picture when you get the alternator apart we can photoshop where to solder on the W terminal for ya.

Title: Re: Creating a W terminal on alternator.
Post by: fairweather on August 02, 2009, 07:08:54 am

Here are some pics:

remove the plastic cover off the back of the alternator and pick one of the clamping points.


(http://www.vanagonaccessories.com/alt1.jpg)

(http://www.vanagonaccessories.com/alt2.jpg)

Title: Re: Creating a W terminal on alternator.
Post by: Vincent Waldon on August 02, 2009, 09:39:04 am

As luck would have it I just stumbled across this writeup for the MK1 alternator... they are all pretty much the same though:

http://www.vwwatercooled.org.au/newforum/upload/showthread.php?t=31515

Title: Re: Creating a W terminal on alternator.
Post by: Hiho on August 04, 2009, 03:11:18 am

Pretty good writeup!

Title: Re: Creating a W terminal on alternator.
Post by: macka on November 04, 2009, 06:05:24 pm

you can also do this with most of the remy delco alternators running from the 87 to mid 93. So if you want a 105 amp alternator on the cheap....