<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.<div><br></div><div>SO</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jul 20, 2020 at 7:23 AM Phil Auten <<a href="mailto:pga2@basicisp.net">pga2@basicisp.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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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>
</p>
<br>
<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"><pga2@basicisp.net></a><br>
To: <a href="mailto:at@lists.antique-tractor.com" target="_blank">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"><fe56d210-ae9b-625c-0dbf-a628984ea7b2@basicisp.net></a><br>
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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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