Batteries not charging

I noticed my voltmeter wasn’t working and my batteries are not charging. I’m assuming my alternator has failed. How should I test to see if my alternator is working? And, if it’s not working…should I replace or try to repair it?

Howard Whittaker
1982 N26 #18
Stray Cat,
Waupoos, ON.

Note: my engine is a 13 horse Westerbeke

Is that the voltmeter on your 12V electric panel?? Also, does your tachometer work when the engine is running??

Joe Valinoti
S/V IL Gatto NS30U #221
Sea Harbour YC
Oriental, NC USA
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It’s the meter beside the oil, water and tac (by the wheel under the starboard stern locker)…and no my tac isn’t working either (interesting you asked that question).