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Ford 9N, 2N & 8N Discussion Forum
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Bad resistor or switch?

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pappy

08-09-2004 09:46:01




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My '51 8N has been a challenge. 12v single pole conversion. When I first got it, ran great for 3 hours pulling a disk. Began acting like it was starving for gas. Need to hold the choke out to get back to the barn. Tried the following after the advice here.

New 12v coil= no change(not sure whether old coil was 6v or 12v)
New condensor= no change
checked gas flow= steady stream at carburator loose wire on key switch= no change

Do I need the resistor? Just wire nut around?
New switch? Key switch? Starter switch?
Seems like the running problem is worse when the tractor is not level.

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souNdguy

08-09-2004 11:22:50




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 Re: Bad resistor or switch? in reply to pappy, 08-09-2004 09:46:01  
Well.. that side mount real 12v coil needs no resistor. I'm puzzeled though by you asking if you need to wire nut around your resistor. I'm guessing that this tractor had a 6v coil before, and a dropping resistor, and that is what you are refering to, and not a ballast resistor like the front mount units.

Given that.. sounds like your wireing is hacked up a bit... might be time for a new 15$ wire harness.

Any loose wires can cause problems.. they can heat up and become resistive, and let you loose sparkies... same with bad switch contacts.

Try jumpering around the key switch if you suspect it.

If it is laboring when not level.. it leads me to believe a fuel problem.. perhaps a bunch of fine sediment around the shutoff valve screen in the tank.

Choke enriches the mixture, and increases manifold vacume to the fuel system. If pulling the choke helps, think about these two things. If you have a weak spark, an enriched mixture is easier to ignite. If you have a vacume leak at the carb, or manifold, that leans out your mixture.. choking helps enrich it back closer to 'normal' to help running. Also.. a partially clogged fuel system can be aided by extra manifold vacume pulling the fuel thru clogged jets or screens.

You might try rigging up a fuel bottle with one of those pointy nose oil bottles and a foot of gas line that you can slip over the disconnected gas line at the fuel bowl. If this is happening after hours of use.. also check to see that your tank vent isn't plugged and pulling a vacume on the fuel tank. Leaving the tank lid slightly loose will let you know if this is the problem.

Soundguy

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Rob

08-09-2004 12:02:34




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 Fuel bottle? in reply to souNdguy, 08-09-2004 11:22:50  
That's a two-man job. One guy for the bottle and another guy for the fire extinguisher.



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souNdguy

08-09-2004 12:36:37




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 Re: Fuel bottle? in reply to Rob, 08-09-2004 12:02:34  
Lots of people here have moved their N around with an improvised gas can while their hood is of Like anyhting in life.. you can try to do it safe.. or you can not try.. and do it unsafely.

a fuel line attatched to the netal line on the carb, pulling from a small fuel source on the opposite side of the tractor isn't too much of a finagle. The metal line is the one that is still close to the manifold.. and if a hose clamp won't seal the rubber line to the metal line.. you've got more than fuel problems anyway...

Just owning one of these old tractors is edgine a hair closer towards the risk line. Tractors bythemselves.. even new ones seem to be hazardous looking at the farm death / accident numbers every year.

Older tractors are even 'worse' with a lack of rops, and other safety features.. more pinch points, less spinning shaft shielding.. including belts and fans. I'm sure an osha guy would pass out at the though of the pulley and long belt on the belly mower of my IH cub... and it doesn't even have a safety interlocked start switch either... According to most 'states' contact with waste petroleum products is a health no-no too, and the noise DB at the operators platform on many of these old machines does not meet todays standards...

Something in this world IS going to kill me. I'm going to try to be as safe as possible, and try to enjoy the ride...

I also look at a famous quote by ? Ben Franklin??

Something about those that trade freedom for security end up with neither...

Gives the idea of a completly robot driven tractor out inthe field mowing while you are sitting safely behind a blast screen in a subteranian bunker... I think I'll take the oily loud tractor any day...

Soundguy

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Adam Paul

08-09-2004 12:48:34




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 Re: Fuel bottle? in reply to souNdguy, 08-09-2004 12:36:37  
Soundguy, What an awesome reply / veiw on life!!!
My thoughts exactly!!!
Thanks for brightening my day,
Adam



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souNdguy

08-09-2004 12:58:56




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 Re: Fuel bottle? in reply to Adam Paul, 08-09-2004 12:48:34  
I've got enough other 'non-fun' things in my life to worry about.. then cringe at spraying ether into the carb trying to start an old tractor.

Besides.. I love my tractors.. while others may think it is tragic if I die on one of my tractors... I can't think of many ways I'd rather go.. ( well.. one comes to mind.. but.. ) anyway..

Like I say.. I'm gonna do my best to stay safe.. try not to do many blatently foolhardy things... ( like smoking while washing some parts in a vat of gas.. ) etc. Just like stepping out into traffic on accident... one day.. something is gonna catch up to me.. may be the tractor.. may be a snake.. might be the old lady.. he he he..

Soundguy

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