!jz alternator issue :(

[paul21uk]

right guys i have a 1jz conversion i was recently using the 2jz na alternator which till recently was running fine now its knackered i came across a good 1jz alternator very cheap,

my issue is that i have NO CHARGE coming from it, i have power from battery also have igniton charge and permanent 12v charge but none while the engine is running,

i know there are a few guys on here that has the 1jz swap also so if they could point me in the right direction as anyone else that would be great

 

i have searched and not managed to find anything

thanks

[Shane]

Hi Paul,

 

So long as you have the exciter feed to the field coil connector and the feed to the battery you should be able to get it to charge if it's a good alternator.

 

Here is an example of alternator wiring in it's simplest form:

http://www.thecj2apage.com/forums/uploads/769/DelcoSI2wiring.jpg

And another:

https://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=TIafYOGo7ffeuM&tbnid=PfZUZX8Bld2CTM:&ved=0CAUQjRw&url=http%3A%2F%2Fwww.expeditionlandrover.info%2FDelco_Alternators.html&ei=BkT3UqP0Duii0QXr24GAAw&bvm=bv.60983673,d.ZGU&psig=AFQjCNHZkQzY1SAc-UmY5rLMr1fDwMs9qw&ust=1392022846408695

 

Although these will work fine and are very simple, i would personally always make sure the exciter feed is ignition switched too just to avoid any drain on the battery when not in use.

[ghostbuster]

Well worth getting the alt tested. I've just been there and mine was breaking down as load increased due to rectifier probs. I got mine repaired by a specialist here in Devon (cheaper than replacement).

[Chris Wilson]

The usual causes of trouble in 2JZ alternators are oil ingress and / or worn out brushes and slip rings.