GM 1 wire alternator on WD

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I recently put a GM 1 wire alternator on my WD.  For some reason it won't start charging unless the tractor revs up past full throttle.  What needs to be done so that the alternator will charge as soon as it starts up?
Thanks

	This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
	The Forum	Parts and Services	Unofficial Allis Store	Tractor Shows	Serial Numbers	History

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Branden(N-IL) Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 12 Sep 2009 Location: Illinois Points: 5	Post Options Post Reply Quote Branden(N-IL) Report Post Thanks(0) Quote Reply Topic: GM 1 wire alternator on WD Posted: 02 Mar 2010 at 5:41pm
	I recently put a GM 1 wire alternator on my WD. For some reason it won't start charging unless the tractor revs up past full throttle. What needs to be done so that the alternator will charge as soon as it starts up? Thanks

Sponsored Links

Steve in NJ Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Andover, NJ Points: 11885	Post Options Post Reply Quote Steve in NJ Report Post Thanks(0) Quote Reply Posted: 02 Mar 2010 at 5:52pm
	Change it over to a three wire. Most 1 wire Alternators need 1200-1400 rpms to excite the regulator to start the charging process. One wire Alts are not for Tractors. Depending on what regulator that was installed in the unit when built, some can be used both ways. I offer a wiring kit to change a one wire to a three wire system which includes a key switch. Or, if you want to change it over yourself give me a call, be happy to help ya out.... Steve@B&B

Dave(inMA) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Grafton, MA Points: 2398	Post Options Post Reply Quote Dave(inMA) Report Post Thanks(0) Quote Reply Posted: 02 Mar 2010 at 5:53pm
	My understanding of the 1-wire alternators is that they get their "tickle" current internally and that this requires a fairly high revolution speed. Could put a smaller pulley on the alternator or change out to a traditional 3-wire set-up. My D14 behaves similarly but doesn't require revving to as high a rate as yours seems to. Some of the experts on here may be able to suggest some way to tweak the alternator to bring down the required speed. Looks like Steve (the expert) and I were posting at the same time! What he said....though my 1-wire set-up works okay! Edited by Dave(inMA) - 02 Mar 2010 at 5:55pm
	WC, CA, D14, WD45

190XTLP Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 06 Oct 2009 Location: Jerseyville il. Points: 51	Post Options Post Reply Quote 190XTLP Report Post Thanks(0) Quote Reply Posted: 02 Mar 2010 at 8:33pm
	super simple cheap fix for you go to your auto store and buy the exciter wire/diode,and plug it in to the 2 prong outlet(it is rubber caped)on your alt hook remaining wire to any switched wire,about 10.00 will work perfect
	WD45G,WD45D.190XTD,190XTLP D19LP,WC unstyled,WF unstyled WC styled,220