Gordon Wedman wrote:


I would suggest connecting a good quality digital voltmeter to your
alternator output and ground. See if the voltage drops when the tack rpm
drops. If that is the case I would suspect the regulator rather than the
alternator but I guess it could be either one. You didn't say what type
alternator you have. Is this the original Hitachi internal regulator?
By the way, I have an 80 amp Yanmar/Hitachi alternator rebuilt and modified
to use a simple external regulator. Never used since rebuild. The
regulator allows you to increase the alternator output voltage to compensate
for isolator diodes, long wire runs and other voltage robbing factors.
Yours for $200 plus shipping from 98281.



Sampling rate problem.

Try a good quality ANALOG meter...