Creating a W terminal on alternator. - Upgrades (non engine related ) - VWDiesel.net The IDI, TDI, and mTDI source.

• Creating a W terminal on alternator. by colectb on 28 Jul, 2009 19:55
• 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!
• #1 by lovinthedeez on 28 Jul, 2009 21:30
• 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
  http://www.vwdiesel.net/forum/index.php?topic=3741.0
• #2 by Vincent Waldon on 28 Jul, 2009 23:49
• 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:
  
  
  
  Tap into a field coil wire that runs to a diode bridge and bob's your uncle.
• #3 by colectb on 29 Jul, 2009 00:00
• 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!
• #4 by Vincent Waldon on 29 Jul, 2009 00:06
• 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.
• #5 by fairweather on 02 Aug, 2009 10:08
• Here are some pics:
  
  remove the plastic cover off the back of the alternator and pick one of the clamping points.
  
  
  
  
  
  
• #6 by Vincent Waldon on 02 Aug, 2009 12:39
• 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
  
  
• #7 by Hiho on 04 Aug, 2009 06:11
• Pretty good writeup!
• #8 by macka on 04 Nov, 2009 21:05
• 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....