[Healeys] Voltage Regulator Issue

Greg Lemon glemon at neb.rr.com
Wed Sep 12 20:32:13 MDT 2007


I have been having a charging issue with my BN1, the battery does not stay 
charged, charges OK on a charger.

I have had the generator tested by a shop and it is OK.

I messed with the voltage regulator a little bit, the cut out seems to 
operate a little early (low voltage, low RPMS) but I would not think that 
would affect charging.  I tried to adjust it but turning the adjustment 
screw and it made no difference.

Tested the voltage regulator side, it was allowing a higher than spec 
voltage, I adjusted it down to spec of about 16 volts.

Then I tested at the battery to see if it was getting charge, car off 
battery is about 12.9 volts, at idle 12.8, when I rev it it goes all over 
goes up to around 14 plus volts until about 2000 RPM, then after that it 
drops to slightly over 12, as understand it it should keep going up and 
stabilize at about 14.5??

Anyway any advice from electrical gurus appreciated.

If it is recommended that I get a new regulator I will do that, they are not 
that expensive and when I was much younger I fried pretty much my whole 
electrical system after messing with the voltage regulator, really don't 
want to do that again.

Greg Lemon
54 BN1


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