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This is a reasonable, perhaps the /only/ explanation, but it's possible
the rotor damage was coincidental; I think a 'thrown bar' would have
made a lot of racket.
On 11/27/2022 7:13 AM, josef-eckert--- via Healeys wrote:
>
> Hello Mike,
>
> I presume the points sticked together, causing the generater to
> produce a high output voltage at the generastor D-Terminal, which
> resulted in an extremely high current which welded the points
> together. The generator got extremely hot (had to gave much more power
> than it was designed for) and the bar broke out.
>
> Simple, but that´s to my opinion what happened.
>
> Josef Eckert
>
> Germany
>
> -----Original-Nachricht-----
>
> Betreff: [Healeys] Electrics
>
> Datum: 2022-11-27T02:52:14+0100
>
> Von: "Mike Sinclair" <phoenix722@comcast.net>
>
> An: "Healey List" <healeys@autox.team.net>
>
> Need some enlightenment. Awhile back, the car (BJ8) was running fine,
> but I noticed the little red light that says the battery isn't being
> charged was on. (I do keep the battery on a Battery Minder" when not
> in use.)Â Chased the system down, and discovered the generator was
> putting out zero volts. Adjusted the fan belt, no change. On closer
> inspection, the rotor was damaged (a bar was actually missing). Had
> the unit rebuilt, and it is working fine, but still had the little red
> light wouldn't go out. Checked all the connections, continuity,
> voltage regulator, couldn't find any thing out of the ordinary.Â
> Finally, upon closer inspection of the regulator with a mirror, found
> the contacts on one of the coils were welded together, and the leaf
> spring holding that contact was completely severed. According to the
> manual, this is the "cutoff coil". New regulator solved the problem.
>
> Now the questions.
>
> 1. What could cause the rotor to be damaged?
>
> 2. What could cause the points to weld together?
>
> 3. Which likely failed first? Did one cause the other?
>
> 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".
>
> 5. Would any of this cause damage to anything else, e.g., the battery?
>
> Again, everything seems normal, now. Battery holds charge well.
>
> Mike
>
> 
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This is a reasonable, perhaps the <i>only</i> explanation, but it's
possible the rotor damage was coincidental; I think a 'thrown bar'
would have made a lot of racket.<br>
<br>
<br>
<div class="moz-cite-prefix">On 11/27/2022 7:13 AM, josef-eckert---
via Healeys wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1669562031823.1031080.2b9626fbf4daa152b6dec6cdd92eec201d668eb6@spica.telekom.de">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
<p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Hello
Mike,<br>
</span></p>
<p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">I
presume the points sticked together, causing the generater to
produce a high output voltage at the generastor D-Terminal,
which resulted in an extremely high current which welded the
points together. The generator got extremely hot (had to gave
much more power than it was designed for) and the bar broke
out.</span></p>
<p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Simple,
but that´s to my opinion what happened.</span></p>
<p style="margin: 0px;">Â </p>
<p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Josef
Eckert</span></p>
<p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Germany</span></p>
<p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">Â </span></p>
<p style="margin: 0px;">Â </p>
<p style="margin: 0px;">Â </p>
<p style="margin: 0px;">-----Original-Nachricht-----</p>
<p style="margin: 0px;">Betreff: [Healeys] Electrics</p>
<p style="margin: 0px;">Datum: 2022-11-27T02:52:14+0100</p>
<p style="margin: 0px;">Von: "Mike Sinclair"
<a class="moz-txt-link-rfc2396E"
href="mailto:phoenix722@comcast.net";><phoenix722@comcast.net></a></p>
<p style="margin: 0px;">An: "Healey List"
<a class="moz-txt-link-rfc2396E"
href="mailto:healeys@autox.team.net";><healeys@autox.team.net></a></p>
<p style="margin: 0px;">Â </p>
<p style="margin: 0px;">Â </p>
<p style="margin: 0px;">Â </p>
<div>
<p style="margin: 0px;"><span style="font-family: Tahoma;">Need
some enlightenment. Awhile back, the car (BJ8) was running
fine, but I noticed the little red light that says the
battery isn't being charged was on. (I do keep the battery
on a Battery Minder" when not in use.)Â Chased the system
down, and discovered the generator was putting out zero
volts. Adjusted the fan belt, no change. On closer
inspection, the rotor was damaged (a bar was actually
missing). Had the unit rebuilt, and it is working fine, but
still had the little red light wouldn't go out. Checked all
the connections, continuity, voltage regulator, couldn't
find any thing out of the ordinary. Finally, upon closer
inspection of the regulator with a mirror, found the
contacts on one of the coils were welded together, and the
leaf spring holding that contact was completely severed.Â
According to the manual, this is the "cutoff coil". New
regulator solved the problem.</span></p>
<p style="margin: 0px;"><span style="font-family: Tahoma;">Now
the questions.</span></p>
<p style="margin: 0px;"><span style="font-family: Tahoma;">1.
What could cause the rotor to be damaged?</span></p>
<p style="margin: 0px;"><span style="font-family: Tahoma;">2.
What could cause the points to weld together?</span></p>
<p style="margin: 0px;"><span style="font-family: Tahoma;">3.
Which likely failed first? Did one cause the other?<br>
</span></p>
<p style="margin: 0px;"><span style="font-family: Tahoma;">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".</span></p>
<p style="margin: 0px;"><span style="font-family: Tahoma;">5.
Would any of this cause damage to anything else, e.g., the
battery?</span></p>
<p style="margin: 0px;"><span style="font-family: Tahoma;">Again,
everything seems normal, now. Battery holds charge well.<br>
</span></p>
<p style="margin: 0px;"><span style="font-family:
Tahoma;">Mike</span></p>
</div>

<br>
</blockquote>
<br>
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