[AT] Subject: Re: 16 HP Onan twin

[Cecil Bearden]

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..
Cecil

On 7/20/2020 6:38 AM, Stephen Offiler wrote:
> Stove gasket cement?  Seriously, it's an exhaust seat... I'm not aware 
> of any epoxy (NASA might be) that can survive those temperatures.
>
> SO
>
> On Mon, Jul 20, 2020 at 7:23 AM Phil Auten <pga2 at basicisp.net 
> <mailto:pga2 at basicisp.net>> wrote:
>
>     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.
>
>
>     Phil in TX
>
>
>     On 7/19/2020 5:11 PM, Andy Glines wrote:
>>
>>     Message: 12
>>     Date: Sun, 19 Jul 2020 14:43:21 -0500
>>     From: Phil Auten <pga2 at basicisp.net> <mailto:pga2 at basicisp.net>
>>     To: at at lists.antique-tractor.com
>>     <mailto:at at lists.antique-tractor.com>
>>     Subject: Re: [AT] 16 HP Onan twin
>>     Message-ID: <fe56d210-ae9b-625c-0dbf-a628984ea7b2 at basicisp.net>
>>     <mailto:fe56d210-ae9b-625c-0dbf-a628984ea7b2 at basicisp.net>
>>     Content-Type: text/plain; charset="windows-1252"; Format="flowed"
>>
>>     Andy, could you stake the seat into the block? I don't know much
>>     abvout
>>     Onan engines, but it swwms to me that this would be an
>>     inexpensive fix
>>     vs. a replacement engine. Also if these Onan engines are prone to
>>     this
>>     failure, there is probably a fix available for the issue.
>>
>>
>>     My 2?
>>
>>     Phil in TX
>>
>>
>>     On 7/19/2020 2:27 PM, Andy Glines wrote:
>>     > My Gravely 816 tractor has an Onan 2 cylinder engine (B43M-GA
>>     016).?
>>     > One of the exhaust valve seats is loose in the block causing that
>>     > cylinder to have no compression.? It may be easier to use a
>>     different
>>     > engine than to fix this one.? There are other engines available
>>     in the
>>     > local ads.? Or course they are different model numbers even though
>>     > they look the same as mine. Is there a good resource for me to
>>     > determine the difference between them?
>>
>>
>>     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.
>>
>>
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