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Tractor Talk Discussion Forum

Jump-sparks On Fouling Plugs

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noncompos

05-24-2006 22:45:27




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Just reading a post about an engine fouling plugs, and it brought to mind the jump-sparks we used to make to keep our plugs firing when the rings were bad...I seem to recall that at one time you could buy them at auto parts stores, altho I think we usually made our own, even tho can't recall now just how...do they still sell anything like that, or does anyone recall making them???




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jerrycpp

05-25-2006 14:01:13




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 Re: Jump-sparks On Fouling Plugs in reply to noncompos, 05-24-2006 22:45:27  
We had a smokin' oil burnin' AC years ago. My brother took a piece of baling wire, wrapped one end around the lower portion of the plug, and the other around the wire about 2" back from the end. He bent the wire so the spark had to jump about 1/4 inch from the end of the wire to the nut of the plug. That kept the plug clean - mostly. NOTE: If you do use a "U" type Champion, be sure you don't use a tight sealing plug boot. In the late 60's and early 70's Champion tried replacing all thier plugs with the U type. Ozone builds up and blows the boot off.

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noncompos

05-25-2006 12:43:08




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 Re: Jump-sparks On Fouling Plugs in reply to noncompos, 05-24-2006 22:45:27  
Many thxx for all the comments; didn"t know the plug co"s made such plugs now (they might"ve been available then but in New Mexico in the 50"s we weren"t very knowledgeable)...buickanddeere, you"re very fortunate to never"ve had to run on baling wire and friction tape, it was no fun then, tho it"s funny now. Always hated to have to sop the oil out of the plug holes before pulling the plugs.
After making the post remembered reading about a long-distance flight in a muti-engine aircraft, which mentioned the pilot or the flight eng"r doing something to the engines to "clean the plugs", and the impression I got was it wasn"t to do with fuel, but electrical, and I"ve always wondered if it was something like that...there"s just more fascinating things to wonder about than time to run them down...

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RAB

05-25-2006 08:49:37




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 Re: Jump-sparks On Fouling Plugs in reply to noncompos, 05-24-2006 22:45:27  
I remember, as a kid, the older of our standard Fordsons was run with a button in the plug wire to do this. They used to play havoc with the radio interference produced, even without the extra gap.
We knew when a load of hay was coming up the drive or they were coming for lunch (always parked on the hill so a down-hill start was less likely to cause a stall and the trouble to get it restarted). Picture on the telly was near gone when they came close to the house!
Regards, RAB

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Glen in TX

05-25-2006 08:23:29




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 Re: Jump-sparks On Fouling Plugs in reply to noncompos, 05-24-2006 22:45:27  
Some plug companies been making that built in to the plug for years now and several are still available for example instead of a Champion D16 you can get a UD16 which has an auxillary gap made inside the plug.



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JMS/MN

05-25-2006 07:47:37




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 Re: Jump-sparks On Fouling Plugs in reply to noncompos, 05-24-2006 22:45:27  
Dad made them in the 50s. Used the metal stem and cap from an old plug, drilled two holes in a piece of old plastic ruler, about quarter inch apart. Plug wire went on the extra stem's cap, sparked across to the tractor plug. Supposed to make a hotter spark on a fouling cylinder.



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MLP

05-25-2006 07:19:28




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 Re: Jump-sparks On Fouling Plugs in reply to noncompos, 05-24-2006 22:45:27  
I use Aldor plugs for that they have the gap built in to them. I got the ones for my 2N from J.C. Whitney.



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buickanddeere

05-25-2006 07:30:44




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 Re: Jump-sparks On Fouling Plugs in reply to MLP, 05-25-2006 07:19:28  
I keep the engine in good tune and don't run with fouled plugs.



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Bob

05-24-2006 23:22:34




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 Re: Jump-sparks On Fouling Plugs in reply to noncompos, 05-24-2006 22:45:27  
Google "spark intensifier" (without the " ").

Linked below, is one interesting "hit".



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