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I've had two ignitor failures; one the magnet support unglued and they
all fell out; dead stop; two a constant miss, one magnet was reversed.Â
But generally they have been quite reliable.
John
Hightown, VA
On 10/10/2021 10:12 AM, Bob Spidell wrote:
> Thanks for reporting, Tom. When I read you suspected the Pertronix I
> thought: "This is the first I've heard of an Ignitor becoming
> intermittent (I'd always heard they failed outright."
>
>
> On 10/10/2021 3:30 AM, Tom Felts via Healeys wrote:
>> After 3 days of intense troubleshooting and racking my feeble brain
>> on why this happened, I FINALLY found out why. Background-------was
>> having a pleasant drive-----felt a slight miss------BIG
>> backfire--sputtering then cutting off. Sat for a while, she started
>> and I drove maybe 100 yards. Repeat of above------------sat beside
>> the road and checked to see if I had fuel to the
>> carbs--yes-----pulled float bowl lids and plenty of gas in float
>> bowls. had spark to plugs.  Nothing obvious--so called AAA--got
>> towed home.
>>
>> Next several days I tried the switch and check method----changed fuel
>> pump----changed coil, changed rotor, replaced dist cap, pulled the
>> battery cut-off sw and directly shorted to body ground, checked to
>> make sure the low tension wire had not grounded itself. ALL--to no
>> avail. so I was down to my last idea.
>>
>> That was to pull and replace the Pertronix Ignitor. As I was taking
>> it out, The cause of this whole mess became apparent. The hot wire
>> from the Ignitor to the coil had been rubbed raw on one side of the
>> wire, exposing just a tiny amount of the inner wire. It was this
>> small amount of exposed wire that was shorting intermittingly. and
>> this was the source of my problem.
>> Apparently, over time the rotor had rubbed the wire until it rubbed
>> enough insulation off to expose the wire. This shows how long that
>> Pertronix had been in there.
>>
>> This was truly an AH HA moment. Happy I found it but so very
>> flustrated over what it took to discover it. But in the process I got
>> a new fuel pump (electronic), new dist cap, new rotor, new Ignitor,
>> new Pertronix coil, and a lot of knowledge:)
>>
>> Glad the root cause was finally found and fixed and she is purring
>> again:)
>>
>> Tom
>>
>> Anyway, replace
>>
>>
>>
>>
>
>
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I've had two ignitor failures; one the magnet support unglued and
they all fell out; dead stop; two a constant miss, one magnet was
reversed. But generally they have been quite reliable.<br>
<br>
John<br>
Hightown, VA<br>
<br>
<div class="moz-cite-prefix">On 10/10/2021 10:12 AM, Bob Spidell
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:b4b20b80-87c4-ce59-b756-346a16d837d4@comcast.net">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Thanks for reporting, Tom. When I read you suspected the Pertronix
I thought: "This is the first I've heard of an Ignitor becoming
intermittent (I'd always heard they failed outright."<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/10/2021 3:30 AM, Tom Felts via
Healeys wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1039904904.324298693.1633861834662.JavaMail.zimbra@windstream.net">
<meta http-equiv="content-type" content="text/html;
charset=UTF-8">
<style>body {height: 100%; color:#000000; font-size:12pt;
font-family:arial, helvetica, sans-serif;}</style>
<div>After 3 days of intense troubleshooting and racking my
feeble brain on why this happened, I FINALLY found out why.Â
Background-------was having a pleasant drive-----felt a slight
miss------BIG backfire--sputtering then cutting off. Sat for
a while, she started and I drove maybe 100 yards. Repeat of
above------------sat beside the road and checked to see if I
had fuel to the carbs--yes-----pulled float bowl lids and
plenty of gas in float bowls. had spark to plugs.  Nothing
obvious--so called AAA--got towed home.</div>
<div><br data-mce-bogus="1">
</div>
<div>Next several days I tried the switch and check
method----changed fuel pump----changed coil, changed rotor,
replaced dist cap, pulled the battery cut-off sw and directly
shorted to body ground, checked to make sure the low tension
wire had not grounded itself. ALL--to no avail. so I was
down to my last idea.</div>
<div><br data-mce-bogus="1">
</div>
<div>That was to pull and replace the Pertronix Ignitor. As I
was taking it out, The cause of this whole mess became
apparent. The hot wire from the Ignitor to the coil had been
rubbed raw on one side of the wire, exposing just a tiny
amount of the inner wire. It was this small amount of exposed
wire that was shorting intermittingly. and this was the
source of my problem.  </div>
<div>Apparently, over time the rotor had rubbed the wire until
it rubbed enough insulation off to expose the wire. This shows
how long that Pertronix had been in there.</div>
<div><br data-mce-bogus="1">
</div>
<div>This was truly an AH HA moment. Happy I found it but so
very flustrated over what it took to discover it. But in the
process I got a new fuel pump (electronic), new dist cap, new
rotor, new Ignitor, new Pertronix coil, and a lot of
knowledge:)</div>
<div><br data-mce-bogus="1">
</div>
<div>Glad the root cause was finally found and fixed and she is
purring again:)</div>
<div><br data-mce-bogus="1">
</div>
<div>Tom</div>
<div><br data-mce-bogus="1">
</div>
<div>Anyway, replace</div>
<div>Â </div>
<div><br data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<br>
</blockquote>
<br>
<br>
</blockquote>
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