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8n cracked head or block


 
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Bigwade
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Joined: 08 Jul 2019
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PostPosted: Sun Aug 02, 2020 12:49 pm    Post subject: 8n cracked head or block Reply to specific post Reply with quote

I recently had the head gasket on my 8n bust. Blowing exhaust out of the radiator and steam out of the exhaust. No big deal, swapped in a new gasket, seemed to be fine and let it sit a day. Started it this morning, drove to the field, within a minute of starting to bush hog I noticed steam out of the cap. Got off vented it, expecting it to be the air pocket. Drove a bit more and it started making an odd noise, then exhausting out of the oil fill. When I changed the head gasket last time there was no issue with water in oil. I drove it back to the barn, steaming and spitting the whole way. Looks like milkshake in the oil now and the cylinder head is showing huge heat signs, paint gone and the playing on the plugs cracking. Trying to figure out if I have a busted head or block at this point. Any way before I pull them to check?
 
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kossuth
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PostPosted: Tue Aug 04, 2020 7:31 pm    Post subject: Re: 8n cracked head or block Reply to specific post Reply with quote

Kinda hard to guess online but I'd likely take the head to a machine shop and have them check it over for straightness. You're blowing head gaskets likely because something is warped or your not getting a good purchase on the studs/bolts when you torque it down. Also did you retorque the head after running it after you swapped the gasket the first time?

Hopefully it's just the head. If the head checks out and you did get it snugged up then the block is likely warped and that's alittle bit of a bigger deal.
 
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kossuth
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PostPosted: Tue Aug 04, 2020 7:31 pm    Post subject: Re: 8n cracked head or block Reply to specific post Reply with quote

Kinda hard to guess online but I'd likely take the head to a machine shop and have them check it over for straightness. You're blowing head gaskets likely because something is warped or your not getting a good purchase on the studs/bolts when you torque it down. Also did you retorque the head after running it after you swapped the gasket the first time?

Hopefully it's just the head. If the head checks out and you did get it snugged up then the block is likely warped and that's alittle bit of a bigger deal.
 
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kossuth
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PostPosted: Tue Aug 04, 2020 7:31 pm    Post subject: Re: 8n cracked head or block Reply to specific post Reply with quote

Kinda hard to guess online but I'd likely take the head to a machine shop and have them check it over for straightness. You're blowing head gaskets likely because something is warped or your not getting a good purchase on the studs/bolts when you torque it down. Also did you retorque the head after running it after you swapped the gasket the first time?

Hopefully it's just the head. If the head checks out and you did get it snugged up then the block is likely warped and that's alittle bit of a bigger deal.
 
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JMOR
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PostPosted: Tue Aug 04, 2020 9:35 pm    Post subject: Re: 8n cracked head or block Reply to specific post Reply with quote

kossuth wrote:
(quoted from post at 23:31:11 08/04/20) Kinda hard to guess online but I'd likely take the head to a machine shop and have them check it over for straightness. You're blowing head gaskets likely because something is warped or your not getting a good purchase on the studs/bolts when you torque it down. Also did you retorque the head after running it after you swapped the gasket the first time?

Hopefully it's just the head. If the head checks out and you did get it snugged up then the block is likely warped and that's alittle bit of a bigger deal.
There is a bad echo in here!
 
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