<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>In theory, you ought to be able to check the DC resistance on a
coil to see if it is open or shorted...which won't tell you if you
have a heat-related intermittent problem. [My gut says that
intermittent breaks or shorts are probably the most common failure
mode in a coil; hard failures result in an immediate failure to
get spark!]<br>
</p>
<p>However, finding the baseline/correct values for a good coil
might be a problem, especially for a coil from an antique.</p>
<p>Mark J</p>
<p>Columbia MO<br>
</p>
<div class="moz-cite-prefix">On 11/5/2019 7:49 PM, Cecil Bearden
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:c6e91383-a877-6124-8734-54818545b144@copper.net">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p>That is my method of testing coils. I usually take the
distributor out to install points and set them on the Sun
Machine. Probably 9 times out of 10, I end up rebuilding the
distributor. I quit buying rebuilt distributors, they are just
crap.... With Industrial engines, there are not many rebuilders
around... This is where my lather and mill pay off big time..<br>
Cecil<br>
</p>
<div class="moz-cite-prefix">On 11/5/2019 7:19 PM, Gilbert
Schwartz wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1329784174.224707.1573003178560@connect.xfinity.com">
<meta http-equiv="content-type" content="text/html;
charset=UTF-8">
<meta charset="UTF-8">
<div style="font-size: 12pt; font-family: helvetica, arial,
sans-serif; color: rgb(51, 51, 51);"> I would like to try and
delve into the wide knowledge and expertise of the members
within ATIS. <br>
Is there any acceptable method of determining if an ignition
coil is good short of installing it on a running engine. Our
1949 AC G would not start a few days ago after being parked
for a short period of time. A quick observation determined the
contact points were beyond use. I went to the local auto parts
store and was advised I probably should replace both the
points and of the condenser because they felt like that
condenser went first and it caused the points to burn up. With
this information I also purchased a new coil even though I
wondered if the coil was a bad. </div>
<div style="font-size: 12pt; font-family: helvetica, arial,
sans-serif; color: rgb(51, 51, 51);"> Bottom line; Is there
any way to bench test a coil? We have several used coils
laying around here of questionable viability. I would like to
pitch them if they aren't any good. <br>
I appreciate anything you can tell me. </div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
AT mailing list
<a class="moz-txt-link-abbreviated" href="mailto:AT@lists.antique-tractor.com" moz-do-not-send="true">AT@lists.antique-tractor.com</a>
<a class="moz-txt-link-freetext" href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com" moz-do-not-send="true">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</a>
</pre>
</blockquote>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
AT mailing list
<a class="moz-txt-link-abbreviated" href="mailto:AT@lists.antique-tractor.com">AT@lists.antique-tractor.com</a>
<a class="moz-txt-link-freetext" href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</a>
</pre>
</blockquote>
</body>
</html>