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Tractor Talk Discussion Forum

Re: Farmall spark plugs

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Larry Flynt

12-08-2012 17:08:17

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The plugs I removed today were recommended by NAPA dealer and are NGK AB-6. They supposed to be a hotter plug than normal. The plugs he sold me today are Autolite 3116. I had the compression tested by our local tractor mechanic last winter, which was the first problem I suspected, and compression is not low on any cylinder. Looking now that the ones I removed today, they are not fauled with carbon in any way. The tractor runs beautifully with the new plugs.

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The tractor vet

12-08-2012 20:53:19

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 Re: Farmall spark plugs in reply to Larry Flynt, 12-08-2012 17:08:17  
Well i can tell ya the NGK's plum DO NOT WORK IN A FARMALL. . And IF you are running a resistor plug wire there is half your problem . Either run a 3116 or a 386 or a C 86 A/C plug . and if your not going thru a tank of gas every 60 days today this can be a problem as this NEW gas goes bad fast. and here lately it is driven me to drink as WE all are having fuel related problems on all the gassers around here . Outof the twenty plus gas tractor that i take care of i am getting tired of hearing hey my tractor is missing again . This is happing when they leave them set for several weeks and then get them out to do something . And it does not matter what grade of gas that they are usen . As i have the guys that are still running S/MTA's and 400's that burn the 89 and us that have the 06's burning the 93 . They run fine with FRESH gas , but let them set for a spell and they foul out a plug or two.

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Larry Flynt

12-09-2012 05:35:17

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 Re: Farmall spark plugs in reply to The tractor vet, 12-08-2012 20:53:19  
The NKG' are a plug the NAPA owner wanted me to try. The 3116 is what he gave me to install this time. I believe that you are right regarding the gasoline as the tractor sits sometimes 30 days without cranking. Will drain out the old gas, and when planning to use the machine, will fill with new gas each time and see how that works. Thanks muchly for the reply.

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Paul Janke

12-08-2012 17:56:04

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 Re: Farmall spark plugs in reply to Larry Flynt, 12-08-2012 17:08:17  
I think that is the same plug we are using in a 460 which used to foul the number 2 plug in short order. It is still not perfect, but much better. I find the cylinder with the miss by starting the cold engine for a short time, shutting it off, and putting my fingers in alongside the plugs until I find the coldest one. It seems to work pretty well, and it seems like many engines foul one plug long before the others.

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12-08-2012 17:49:23

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 Re: Farmall spark plugs in reply to Larry Flynt, 12-08-2012 17:08:17  
Alcohol fouling can not bee seen with your eye ball and if the plug is any color other then a brown then it is in fact fouled by this crap alcohol gas we have now days. Of course things like having true copper wire plug wires play a big part in things also

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rusted nuts

12-08-2012 17:23:10

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 Re: Farmall spark plugs in reply to Larry Flynt, 12-08-2012 17:08:17  
Well, "Tractor Vet" down on Tales just had some NEW copper plug wires that didn"t carry spark. He found that out after he had the head redone. Them plugs should be good ones, I would be looking for weak spark. maybe a coil

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Larry Flynt

12-09-2012 05:27:58

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 Re: Farmall spark plugs in reply to rusted nuts, 12-08-2012 17:23:10  
Will have that checked. Thanks for the tip.

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