Fellas,
My 85 Duke charging gauge seems to run on the high side. The gauge points past the #13. The needle actually points to third white mark beyond the #13. (In the middle) My needle never gets into the red. Do I need a new altinator?
Cordially,
kevin

Probably not.
Alternator will put out 13.8 - 14.7 volts.

Check it with a voltage gauge, at the battery when running and the alternator, but as said above that is not an out of the ordinary reading on a dash gauge, they are not as accurate as they once were new or are now used in cars. But just to be safe make sure it is putting out like it should and that your gauge is right. Overcharging a battery can actually burn them up, if that is a problem.

Steve

------------------
Technology is great when it works,
and one big pain in the ass when it doesn't



Detroit iron rules all the rest are just toys.

[This message has been edited by 84fiero123 (edited 07-06-2015).]

Thank you Steve👍😊👌, I'll check your suggestions,,,,,have a nice day.
Cordially,
kevin

quote Originally posted by kevin: Thank you Steve👍😊👌, I'll check your suggestions,,,,,have a nice day. Cordially, kevin

most parts store with do a free charging system check for you, at least NAPA, O'Reily's and even Chinamart will as well I think. If you want a quick way to be sure everything is working as it should. If you're car is drivable and registered.

Steve

Volt gauge reading too high is seldom a real problem. Usually your gauge will read low for all the things that might have gone wrong, like a bad alternator, bad alternator belt, bad voltage regulator, a short somewhere in your electrical system. But to be making too much voltage? Rarely happens, more likely your volt gauge is inacurate.