It was a pretty nice day today so I decided to see what is up with my charging system.  When a mechanical voltage regulator is charging high it is either the battery, the field wire, or the regulator.  First I checked the battery.  All three cells are showing marginal specific gravity.  It might be failing.  Next I checked the field wire from the regulator for continuity and shorts.

This wire was fine.  So next I started the engine and checked out the voltage.

The voltage regulator is putting out good voltage.  Finally I put my inductive ammeter on the negative battery cable.  It is showing 15 amps of charge all the time.  I think the battery is just not taking the charge.  I will just keep an eye on it for now.