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<p>When I did valve seats 20 years ago, we used a cement on the seat
before we put in in the block. I cannot find it in the Goodson
site..<br>
Cecil<br>
</p>
<div class="moz-cite-prefix">On 7/20/2020 6:38 AM, Stephen Offiler
wrote:<br>
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<div dir="ltr">Stove gasket cement? Seriously, it's an exhaust
seat... I'm not aware of any epoxy (NASA might be) that can
survive those temperatures.
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<div>SO</div>
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<div dir="ltr" class="gmail_attr">On Mon, Jul 20, 2020 at 7:23
AM Phil Auten <<a href="mailto:pga2@basicisp.net"
moz-do-not-send="true">pga2@basicisp.net</a>> wrote:<br>
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<p>I wonder if there is some sort of high temp epoxy that
would hold in that application. That would be a temporary
fix, but perhaps it would hold long enough for you to save
up the funds for the replacement.</p>
<p><br>
</p>
<p>Phil in TX<br>
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<div>On 7/19/2020 5:11 PM, Andy Glines wrote:<br>
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<div>Message: 12<br>
Date: Sun, 19 Jul 2020 14:43:21 -0500<br>
From: Phil Auten <a
href="mailto:pga2@basicisp.net"
target="_blank" moz-do-not-send="true"><pga2@basicisp.net></a><br>
To: <a
href="mailto:at@lists.antique-tractor.com"
target="_blank" moz-do-not-send="true">at@lists.antique-tractor.com</a><br>
Subject: Re: [AT] 16 HP Onan twin<br>
Message-ID: <a
href="mailto:fe56d210-ae9b-625c-0dbf-a628984ea7b2@basicisp.net"
target="_blank" moz-do-not-send="true"><fe56d210-ae9b-625c-0dbf-a628984ea7b2@basicisp.net></a><br>
Content-Type: text/plain;
charset="windows-1252"; Format="flowed"<br>
<br>
Andy, could you stake the seat into the block? I
don't know much abvout <br>
Onan engines, but it swwms to me that this would
be an inexpensive fix <br>
vs. a replacement engine. Also if these Onan
engines are prone to this <br>
failure, there is probably a fix available for
the issue.<br>
<br>
<br>
My 2?<br>
<br>
Phil in TX<br>
<br>
<br>
On 7/19/2020 2:27 PM, Andy Glines wrote:<br>
> My Gravely 816 tractor has an Onan 2
cylinder engine (B43M-GA 016).? <br>
> One of the exhaust valve seats is loose in
the block causing that <br>
> cylinder to have no compression.? It may be
easier to use a different <br>
> engine than to fix this one.? There are
other engines available in the <br>
> local ads.? Or course they are different
model numbers even though <br>
> they look the same as mine. Is there a good
resource for me to <br>
> determine the difference between them?<br>
<br>
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<div>Thank for the answer Phil, the trick fixes
like staking the seat into the block have
already been tried and failed. There are
oversized seats available but I would have to
tear the engine down to have the block machined
for the new seat. I may be able to switch
engines easier and cheaper. I wish I knew and
easy way to machine the block for a new seat
without a complete tear down. </div>
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