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What spark plugs for a '40 A??

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Craig

07-05-2001 09:06:43




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My 40 A is in need of a new set of spark plugs. She burns a little oil, so I may need to run a slightly hotter spark but I don't want to go too hot.




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Red Dave

07-05-2001 09:16:41




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 Re: What spark plugs for a '40 A?? in reply to Craig , 07-05-2001 09:06:43  
Since you say it burns a little oil, I'd go with Champion D-21's or the Autolite 387's. These are both hot, but, not the hottest you can get. If you are going to work it fairly hard, you may back off to D-18's and be OK.



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Craig

07-05-2001 09:21:26




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 Re: Re: What spark plugs for a '40 A?? in reply to Red Dave, 07-05-2001 09:16:41  
The biggest workout this one gets is taking my 3 year old for tractor rides down the lane....



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sammy the RED

07-05-2001 14:44:21




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 Re: Re: Re: What spark plugs for a '40 A?? in reply to Craig, 07-05-2001 09:21:26  
Go with the D-21.



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Dave T

07-05-2001 09:10:03




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 Re: What spark plugs for a '40 A?? in reply to Craig , 07-05-2001 09:06:43  
Champion D18 (Book calls for D15) A have D21 in my H....Autolite 386 is also a good plug...



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