80 Series alternator / charging voltage ?

Submitted: Monday, Jul 12, 2010 at 19:58
ThreadID: 80033 Views:11644 Replies:4 FollowUps:3
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Can anyone tell me what voltage I would expect from the alternator on a 1994 1HZ 80 Series (base model)?

I recently installed an Aux battery (deep cycle) with a Baintech VSR and a National Luna dual battery monitor. I have not had starting problems with its original setup, or since I have put in the dual battery. However, since installing the monitor I am concerned because the instructions stated that if it did not show all 4 green lights (indicating 14.2v) it was not charging properly. I put the multi-meter on it this evening, and the most I saw it output was about 13.85v at the (main) battery terminal where the alternator is connected. I tried running the batteries down a little to make it do some work, and it still did not go above about the same voltage. Is this normal for the old 80 series alternator, or is it showing some fatigue after all these years?

Any help would be appreciated.

Regards,

Matt
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