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Spark plugs

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Mike CA

10-08-2007 15:52:29




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Pulled the plugs out of my H today. Apparently the crap in the tank that was getting into the gas causing the mess also fouled the plugs. The carbon is pretty thick. So, I'm gonna replace the plugs.

What plugs are best on an H? What should I be telling my auto parts store, as far as part number?




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Mike Farmer

10-16-2007 10:13:41




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
If you can obatain them in USofA try NGK AB-2. They are the correct specification with the added advantage that you can use an ordinary auto wrench



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Andy Motteberg

10-09-2007 13:19:42




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
Champion D21 (I use this plug)
Autolite 386



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El Toro

10-09-2007 06:38:11




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
If Bosch makes a plug to fit your H I would buy them. Hal



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sammy the RED

10-09-2007 06:21:05




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
Champion D-21 should work just fine in your H. third party image



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JOHN IN PENNSYLVANIA

10-09-2007 06:04:32




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
I use Chapmion D21 - NEVER had a problem. As for the comment "just replace them with what was in there" might not be good....they might be the wrong plugs in it in the first place.



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glennster

10-09-2007 05:51:53




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
mike, i have been running the autolite plugs and have been happy with them. havent had that much luck with the champions. the 3116 autolite is a non resistor plug, the 386 autolite is another choice, i believe that is a resistor plug.



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Doc Larry

10-09-2007 05:27:19




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
If the problem really is only carbon build up, you might try cleaning them first. Purple PVC pipe primer works amazingly well for less than the cost of a single plug.
Larry



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IndianaRed

10-08-2007 21:49:29




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
I put the Autolites in mine.



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Andrew Z

10-08-2007 20:09:35




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
If its distrubtor i would go with Champ D 21 i know alot of people dont like them but use them in our A through Super H. If its a mag then D 16 are good. Always had very good luck with the Champs. Autolites are ok too.

Andew



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GeneMO

10-08-2007 17:51:54




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
Per Grandpa's owners manual " The spark plug selected after careful tests as best suited for this engine are the Champion No. 15A or AC-87 and should be used ordinarily. Use only a complete set of either type of spark plug.

Spark plugs should be removed after every 200 to 300 hours of operation, or oftener if necessary, for cleaning and checking gaps between electrodes. A gap of .028 to .032 inch should be maintained"

That's what the book says. Haven't bought them for a long time, but if they are not available, then a cross reference should find a comparable plug.

Gene

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randy hall

10-08-2007 16:18:53




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
autolite 3116



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RedNeckSuperC

10-08-2007 16:14:28




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 Re: Spark plugs in reply to Mike CA, 10-08-2007 15:52:29  
What kind did you take out?
Just get new ones to replace them.



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