I made some measurements and it seems the old alternator was not charging at all. At idle voltage with full charged battery was 11.8-12.0V. I manually excited the alternator and did not change at all, so I removed it and installed the 120A alternator I got.
The alignment seems the same but the new one is a little bit fatter, so now I have a clearance problem on the back of the alternator with the head, so it has to be cloked differently. Now I need a longer lower bracket. Im gonna solve this by installing a Heim joint adjuster, and a longer belt, lets see how that works.
Anyone is using this alternator type?, according to the catalog the application is for a RAM 1500, Jeep grand cherokee, etc If I remember correctly late 80's or early 90's.
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