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Dear XKs:
I recently purchased a 1963 E-Type. The previous owner reversed polarity and installed an XKs Unlimited alternator conversion. The ammeter seems to be odd in that it indicates how much electric use there is. In other words, with the electric cooling fan on, it reads about half-way to the "D." With cooling fan and lights on, it reads about 3/4 of the way toward the "D." The system seems to be working fine otherwise, as he also installed a voltmeter which indicates the line voltage comes up close to 14 volts (13.6?) and stays there while running, even during long night drives.
I suspect that there is something amiss in the wiring. Shouldn't the ammeter stay at center under any load? Can you help me reconfigure this?
-- R.B.
Dear Sir:
This is to be expected. With a dynamo (generator), the readings are expressed as amps usage in the system. The regulator automatically makes the adjustments needed to keep the battery charged. Hence as the draw is noticed, the output of the dynamo is "regulated" accordingly. As to the ALTERNATOR, the function is expressed in voltage. Hence as the "drop" is detected, the internal regulator compensates for the usage and keeps the output to what is needed for the system.
There is no way to integrate the original wiring to accommodate the different signals needed by the two distinct gauges and their specific usages.
I hope to have been of help.
Best regards,
Jim Taliaferro
XKs Unlimited Customer Service
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