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4 Electrode spark plugs

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88 puller

12-29-2002 14:54:44




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Has anyone ever used a plug like this in their pulling tractor? Can you tell how much advantage it would give you over a regular plug? Thanks!




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Dave R

12-30-2002 17:12:25




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 Re: 4 Electrode spark plugs in reply to 88 puller, 12-29-2002 14:54:44  
Four electrodes do not make a better spark. They will give you a longer life as there are four places to arch off. The spark will only jump to the closest electrode If you are looking for a hotter spark open up the gap and run a hotter coil. Expect a short life from this set up.



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laipuller

12-30-2002 15:47:45




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 Re: 4 Electrode spark plugs in reply to 88 puller, 12-29-2002 14:54:44  
i run a jacob's ignition on mine and the manufacturer recomends not to use multiple electrode or exotic electrodes such as platnum.
i would invest my money in 2 sets of plugs and indexing them.
my 2 cents worth



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deadeye

12-30-2002 04:13:38




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 Re: 4 Electrode spark plugs in reply to 88 puller, 12-29-2002 14:54:44  
Tried this on my "M". Used anti-seize on the threads. Could not see any significant difference. Went back to old plugs as they are still quite available. Only satifaction I got out of the process is that they will work. I think I gapped the plugs at .035 or .045 with electronic ignition



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Ron

12-29-2002 18:16:01




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 Re: 4 Electrode spark plugs in reply to 88 puller, 12-29-2002 14:54:44  
Doubt there is any real advantage....

Aircraft have used them, but it was for redundancy, more than anything else...

It would take a VERY hot spark to jump 4 gaps..!!! And...the gaps would all have to be exactly the same..electricity takes the route of least existance... An MSD would provide a better F/A ignition..



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