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Farmall & IHC Tractors Discussion Forum
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Bad spark plug seat on Super C

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Zack

11-19-2003 16:03:57




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I have a Super C where the No. 1 spark plug hole is pitted in the seat. I put new plugs in last week, with new sealing rings of course, and as I turned the engine over I could hear air rushing past the No. 1 plug sort of like an open petcock on a John Deere. I torqued the plug down to spec but the metal sealing gasket won't seal. How am I supposed to go about fixing this? I have thought about trying to get in there with an endmill to true up the surface again, but that might be tricky. Has anybody run into this problem with these cylinder heads? Thanks.

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Ben in KY

11-19-2003 18:24:35




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 Re: Bad spark plug seat on Super C in reply to Zack, 11-19-2003 16:03:57  
Have you tried stacking 2 seals on the plug ?



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CNKS

11-19-2003 17:37:22




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 Re: Bad spark plug seat on Super C in reply to Zack, 11-19-2003 16:03:57  
Pull the head, take it to a machine shop, they can accurately machine it smooth for about $75.



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Randy in NE

11-20-2003 04:47:59




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 Re: Re: Bad spark plug seat on Super C in reply to CNKS, 11-19-2003 17:37:22  
I would agree with CNKS. Fixing it once the correct way will save you money and headaches down the road. Some of these ideas may work if you are out in the middle of the field and need a quick temporary fix. It always amazes me with people that will spend thousands of dollars on something and then want to try and save a couple of bucks by going the 'cheap' way. I have found out in life you only get what you pay for. Most of the time it turns out to be cheaper doing right the first time. Just my $0.02 (US) worth.

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Nebraska Cowman

11-19-2003 16:08:31




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 Re: Bad spark plug seat on Super C in reply to Zack, 11-19-2003 16:03:57  
worth a try with our friend JB Weld.



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Nebraska Cowman

11-19-2003 16:10:25




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 Re: Re: Bad spark plug seat on Super C in reply to Nebraska Cowman, 11-19-2003 16:08:31  
forgot to add, I'd smear grease or neversieze on the threads and just put the JB on the ring.



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