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1. 08:00 AM - Re: Auto [Healeys] Electrics question (Robert L. Nuckolls, III)
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| Subject: | Re: Auto [Healeys] Electrics question |
>
>Now the questions.
>
>1. What could cause the rotor to be damaged?
I presume we're talking about a legacy
GENERATOR and ELECTRO-MECHANICAL regulator
and NOT and ALTERNATOR.
https://www.buggiesunlimited.com/images/products/17-176_B_large.jpg
http://aeroelectric.com/Pictures/Regulators/GENREG1.JPG
>2. What could cause the points to weld together?
Mostly age and time in service. Also,
depends on which points. The reverse
current disconnect relay carries armature
current and most likely to suffer a
weld failure.
>3. Which likely failed first?=C2 Did one cause the other?
Probably the regulator. There are features
in the regulator designed to control and
protect the generator. Some failure modes
will negate the protection leading to
generator failure following on the heals
of regulator failure.
>4. I'm guessing the points stuck together first,
>and caused the leaf spring to break, so first
>the points were always "closed", and then always "open".
Not sure how to parse this . ..
>5. Would any of this cause damage to anything else, e.g., the battery?
Probably not.
>Again, everything seems normal, now.=C2 Battery holds charge well.
Yup. Preventative maintenance is the
greatest prophylactic against dual
failure. Replacing the regulator after
200 hours or so combined with close
observation of brush wear on the generator
will go a long way toward preventing what
has become a very expensive repeat
event.
You might also consider a solid state
upgrade to the regulator. Rare but just
maybe possible. You would still need to
closely watch generator brush condition.
You could build a solid state regulator
too . . . I've seen some DIY articles in the
past.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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