Alternator problem

J

jiffy

Member
My alternator stoped working. It is a 6 volt positive ground and I have taken it to a few shops and they tell me that they are not familiar with a positive ground unit. What is different from a negative groung unit? Thanks for the help. John
 
Where are you located? My electrics shop deals with them all the time, mostly from me, and they keep 1 rebuilt and ready to go.
 
I am in Houston, TX I have not tried to work it myself. But if it is the regulator, where could I get one? Thanks for the reply, John
 
I think you need to find a different shop.If it is made out an old delcotron the only difference will be the regulator and diode plate.As long as they know it there should be no problem.I just hold a wrench or screwdriver up to the back of the alternator when running,if the tool gets sucked up to it the thing is charging.I don't know how I would full-field one,I do it on generators all the time,but I don't have any terminals on mine after they have been converted.The regulators I use have no terminals going to the outside.If you look in the hole where the terminals were on the old regulators,you just see the ceramic(plastic now) of the regulator.
 
Also the screw that is normally grounded in the brush rack is insulated and tied to the neg side of the rectifier. Quite honestly a local shop should be able to deal with it.
Now I'm not at work and no longer do bench work so I'll have to confirm this...
To by pass the VR on a neg ground 10si you ground the brush by grounding the tab you see thru' the little D shaped window in on the back of the alt.
I'm thinkin you energize the tab with B- to bypass, but I need to confirm it. It you wish I'll do so, PM me.
Memory is a funny thing that only works in reverse.
 
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