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<p>You are correct, Stephen,</p>
<p>In the original message the engine was described as a 16HP and I
assumed a single cylinder.</p>
<p>Phil in TX<br>
</p>
<br>
<div class="moz-cite-prefix">On 11/30/2019 10:53 AM, Stephen Offiler
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAP6upcgRS1874uK+eZefUutQscOe7dagRHRMKMfKUigz=sEteg@mail.gmail.com">
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<div dir="ltr">The thing about the carbon hypothesis is that this
is a twin, and it's happening on both cylinders, sounds like
both affected equally. Doesn't seem like a random chunk of
carbon causing the issue would occur equally in both.
<div><br>
</div>
<div>SO</div>
<div> </div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sat, Nov 30, 2019 at 11:37
AM deanvp <<a href="mailto:deanvp@att.net"
moz-do-not-send="true">deanvp@att.net</a>> wrote:<br>
</div>
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0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div><font face="sans-serif">It could be carbon floating
around in the combustion chamber but also consider that
when the engine warms up expansion might cause zero
clearance between the ground side of the plug and the
piston or valve. Check to see what are the recommended
plugs vs what are currently installed. Also consider
high RPM might play a role as well. </font></div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div id="gmail-m_8151024283084706572composer_signature">
<div style="font-size:85%;color:rgb(87,87,87)" dir="auto">Sent
from my Verizon, Samsung Galaxy Tablet</div>
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<div style="font-size:100%;color:rgb(0,0,0)">
<div>-------- Original message --------</div>
<div>From: <a
href="mailto:craig.warner47346@frontier.com"
target="_blank" moz-do-not-send="true">craig.warner47346@frontier.com</a>
</div>
<div>Date: 11/29/19 9:32 PM (GMT-08:00) </div>
<div>To: Antique Tractor Email Discussion Group <<a
href="mailto:at@lists.antique-tractor.com"
target="_blank" moz-do-not-send="true">at@lists.antique-tractor.com</a>>
</div>
<div>Subject: Re: [AT] Kinda Antique Tractor Question </div>
<div><br>
</div>
</div>
I don’t know a whole lot about the engine... not sure if
it’s OHV or not.<br>
<br>
<br>
<a href="https://overview.mail.yahoo.com/?.src=iOS"
target="_blank" moz-do-not-send="true">Sent from Frontier
Yahoo Mail for iPhone</a><br>
<br>
<p
style="font-size:15px;color:rgb(113,95,250);padding-top:15px;margin-top:0px">On
Friday, November 29, 2019, 8:17 PM, Phil Auten <<a
href="mailto:pga2@basicisp.net" target="_blank"
moz-do-not-send="true">pga2@basicisp.net</a>> wrote:</p>
<blockquote>
<div id="gmail-m_8151024283084706572yiv5866834748">
<div>
<p>The first thing that comes to mind is the piston
contacting the ground terminal of the plug. But if
that were the case there would be noise, I would
think, and the starting would revert to terrible
quickly. Perhaps there is a piece of carbon floating
around inside the cylinder that occasionally gets
pinched between the piston and the plug? I just
can't visualize anything else. If the head isn't to
difficult to get to you might pull it and check for
something like that. Is that a flathead or an OHV
engine?</p>
<p>Phil in TX<br clear="none">
</p>
<br clear="none">
<div
id="gmail-m_8151024283084706572yiv5866834748yqtfd00808">
<div>On 11/29/2019 6:11 PM, <a rel="nofollow"
shape="rect"
href="mailto:craig.warner47346@frontier.com"
target="_blank" moz-do-not-send="true">craig.warner47346@frontier.com</a>
wrote:<br clear="none">
</div>
<blockquote type="cite"> </blockquote>
</div>
</div>
<div>
<div
id="gmail-m_8151024283084706572yiv5866834748yqtfd36382">
I’ve got a question that’s kinda antique tractor
related (depending on how you define antique.) I
have a 1992 Ingersoll 6018 with an Onan 16hp motor.
It usually starts and runs great. Last few weeks
it’s been terrible to start but then runs fine. I
pulled the plugs today and the gap was close to
nothing in both of them. Opened the gap to.030 and
it fired right up. Why would the plug gap close? I
had issues with them this spring and set it at that
point.
<div><br clear="none">
</div>
<div>Thanks,</div>
<div><br clear="none">
</div>
<div>Craig</div>
</div>
<br clear="none">
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