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<font size=3>Dave, --- Likely nothing wrong with either of those devices,
and they should both work okay.<br><br>
The starter motor draws up to 200 amps at 12 volts, so internal
resistance is nearly nil, something less than 0.06 ohm, and it does look
like a short to ground.<br><br>
The Dymano puts out up to 20 amps at 16 volts max, working against 12.6
volts open circuit voltage of the battery, so only a few net s to drive
he current. So dynamo armature resistance is also very low. Think
how fat the wires are in that armature.<br><br>
The generator field coils may draw something like 2-amps at 12 volts, so
maybe 6-ohms resistance between the "F" terminal and gound on
the housing (but I don't recall ever measuring it). Power input
requirement is not much more than a pair of brake light bulbs, maybe half
of the power draw of the ignition coil.<br><br>
Barney Gaylord<br>
19589 MGA with an attitude<br>
<a href="http://mgaguru.com/" eudora="autourl">http://MGAguru.com<br><br>
<br>
</a>At 04:05 PM 5/12/2023, dave northrup wrote:<br><br>
<blockquote type=cite class=cite cite="">The attached 2 pictures show the
generator and the starter. I think there are problems with
both. Rebuilding the car from scratch with a new wiring harness;
the dpo just used red, blue, and black so I cut the wires out.<br>
<br>
The two tabs on the generator – both show a connection to ground with a
multi meter. I’m pretty sure that’s bad.<br>
<br>
The post on the starter – it too shows a connection to ground with a
multi meter. That’s bad, too, right?<br>
<br>
Actually, I’ve used 2 different multi meters with the same result.
And by ground I mean the chassis of the device itself<br>
<br>
No battery installed yet, and the rest of the car is disconnected from
these devices. <br>
....<br>
Attachments:<br>
starter.jpg<br>
generator.jpg</font></blockquote><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br /><table style="border-top: 1px solid #D3D4DE;"><tr><td style="width: 55px; padding-top: 13px;"><a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank"><img src="https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-green-avg-v1.png" alt="" width="46" height="29" style="width: 46px; height: 29px;"/></a></td><td style="width: 470px; padding-top: 12px; color: #41424e; font-size: 13px; font-family: Arial, Helvetica, sans-serif; line-height: 18px;">Virus-free.<a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank" style="color: #4453ea;">www.avg.com</a></td></tr></table><a href="#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width="1" height="1"> </a></div></body>
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