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super h plugs


 
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Loren in WI
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Joined: 27 Jan 2011
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PostPosted: Thu Jun 27, 2013 7:29 pm    Post subject: super h plugs Reply to specific post Reply with quote

I have a Super H with electronic ignition. what plugs and what gap should I run?
 
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georgeky
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Joined: 30 Jul 2007
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Location: rabbittown,ky

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PostPosted: Thu Jun 27, 2013 7:49 pm    Post subject: Re: super h plugs Reply to specific post Reply with quote

The book calls for Champion D15 plugs gapped at 25 thousenths.
 
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560farm
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PostPosted: Thu Jun 27, 2013 8:31 pm    Post subject: Re: super h plugs Reply to specific post Reply with quote

I run Autolite 3116 plugs gapped at .030" without electronic ign. On the 560 with electronic ign I run either .035 or .040" can't remember off hand.
 
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TWheat
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PostPosted: Fri Jun 28, 2013 2:15 am    Post subject: Re: super h plugs Reply to specific post Reply with quote

With alldue respect to George and the Book, it depends on what you are going to use it for in my opinion. For my non-hard working Farmalls I have had best results with Champion D 21.
 
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David G
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PostPosted: Fri Jun 28, 2013 5:31 am    Post subject: Re: super h plugs Reply to specific post Reply with quote

Autolite 386 will work fine, they are available at tractor supply stores.
 
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Bob M
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Joined: 28 Dec 1997
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Location: Chili, NY

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PostPosted: Fri Jun 28, 2013 8:26 am    Post subject: Re: super h plugs Reply to specific post Reply with quote

My experience: Champion D-17 if worked hard; D-21 if used only lightly (show/parade, etc). Autolite and A/C equivalents work fine too.

With electronic ignition and a matching coil you can gap as high a 0.035 - 0.040. HOWEVER the cap and wires must be in good condition and kept clean. Otherwise it'll be prone to misfire under damp conditions.
 
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the tractor vet
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PostPosted: Fri Jun 28, 2013 8:17 pm    Post subject: Re: super h plugs Reply to specific post Reply with quote

Well ya hear all about what plugs are the best from everybody . i only work on Farmall tractors and i have played the plug game for years . So here is my take on this . I will never use a Champion plug in nothing either the Auto Lite or Motor Craft or the A/C . If ya have to use a Champion D21 plug then son you got problems your Tonka toy needs fixed and it is not tuned properly. I have had the best luck with a C-86 A/C next the Auto Lites or Motor Crafts. in tractors . When Auto Lite was part of Ford way back we had the best luck with them on the drag strip . use to use them in the Mo pars and drop two tenths just by switching from Champions to the Auto Lites But for some reason the A/C's seem to work best in Farmalls
 
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