Jerry/MT
Elite Member
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- Feb 2, 2008
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- North Idaho-The Palouse
- Tractor
- New Holland TD95D, Ford 4610 & Kubota M4500
I'm not familiar with your model of tractor so i'll assume it's a diesel. How did you clean the fuel filter? Most of the fuel filters I'm familiar with are canisters and they are not renewable. You have to replace them. Make sure that you don't have something clogging the tank outlet that restricts your fuel supply and that all your fuel system fitting are tight so they don't suck air.
Have you made sure the air filter is not clogged? Was there any indication of overheating?
whodat526
Veteran Member
gas or diesel there where be a big difference in what the problem could be between the two
Jerry/MT
Elite Member
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- Feb 2, 2008
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- North Idaho-The Palouse
- Tractor
- New Holland TD95D, Ford 4610 & Kubota M4500
Gas engine! Big difference!
Check the coil for overheating. If you have a 12 v system, Make sure that you coil is ~ 3.2 ohms in primary resisitance. there are so callled 12 V coils out there that require (in fine print) a resistor in series with the coil to limit current to ~ 4amps max. If you have a coil with less then ~3.2 ohms, the current will be prortionatley higher and that can cause the coil to over heat in 30 to 60 minutes. The insulation melts and the coil shorts internally, and shuts the engine down. When it cools the insulation again works so the engiine starts and runs only to shut down again.
olds67
Bronze Member
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- NH T1520
I think Jerry is dead on with it being an electrical issue. I looked in my shop manual for the 3400 and it did not show a resister in line before the coil but it does come through the voltage regulator to the key and then to the coil. You may want to check the voltage regulator when it dies again. I would also check the condensor, It will give you the same results when hot if its bad. One method to test the condesor is to look at the color spark from the plug at operating temp. If it's blue the condensor is good. If it's orange the condensor is bad. I would also check the points and vacuum advance.
thanks for the direction to go in, The coil is a little rough looking so I bought a new coil from carquest. Just replaced condensor last summer. Because of all the rain we are receiving (3" in 3 days) i will not be able to plow again for a while. when i can get out there i will update, thanks again, Joe
dqdave1
Veteran Member
look at your fuel line routing; you could be vapor locking do to fuel line too close to hot manifold, etc.
Soundguy
Old Timer
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- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
at stal does it still have spark? if not.. check.. if yes, then look at fuel.
soundguy
soundguy
Finally had chance to plow again. stalling problem remains, I put in new plugs and new coil. A local napa dealer thought the 10% ethanol gas we now get could be the problem, I filled the tank last fall for snow plowing, It ran fine then, but apparently you cannot store this type of fuel without it seperating and absorbing water. Any thoughts on this being the problem. Thanks.
Jerry/MT
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- New Holland TD95D, Ford 4610 & Kubota M4500
Look for a note on the new coil that says something to the effect of "Requires a Resistor".
Soundguy
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- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
ethanol has an affinity for water.. and yeah.. year old gas might be an issue.
soundguy
Soundguy
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- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
that 3400 should be a stock 12v system.. if it's all oem I'd expect ressitor wire and a 6v coil ( like a napa ic8). if new wire and whatnot.. I'd get a napa ic14sb 16$ 12v coil.. no resistor needed.
soundguy
Yes the coil says it required a resistor wire, from schematic drawing i concluded 2nd wire attached to positive terminal was a resister wire. I tried plowing again 6/2, ran and worked for approx 45 minutes. Then it acts as if no fuel is coming in. Wait 5 minutes and will start and run for 30 seconds then out of fuel again. Ran ok last year on 100% gas. I am going to buy some 100% gas again, nearest station approx 50 miles away. Thanks for the ideas. Joe
whodat526
Veteran Member
the coil needs to have a built in resistor i was having the same problem on a 3000 ford and put a new coil on and it didn't fix the problem i fought with the tractor for 3 months casing electrical and fuel systems to find the problem then decide to get a coil that had a built in resistor and problem solve the lady that owns the tractor has been using it bush hoging 10 acres for the last year
Soundguy
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someone likely rewired it and did not use resistor wire in the coil circuit. seen that alot.
the OP's problem almost is sounding like a fuel obstruction at the fuel pump or similar as it sounds like it is starving and only slowly filling the bowl.. then starting and running it i=out fast.
soundguy
whodat526
Veteran Member
then it shouldn't run for 45 min the start messing up i would believe the bowl should empty alot faster than that and when it started running it should pull enough vacume to pull full through the pump
but the tractor i worked on that needed a coil with internal resistor was factory the tractor had never had anything done to it but the oil changed. it only had 600 hrs
whodat526
Veteran Member
the only fuel problem that i know will cause it to act like this is the valve in the bottom of the tank either the filter it trying to clog up are the screen it pluged and when running it sucks debree into the valve opening
Soundguy
Old Timer
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while the round coils are generally bullet proof.. the older 'dry' potted ones just don't handle the heat nearly as good as the newer oil potted ones. ( which i prefer ).
i wish someone would come up with a good ford N front mount coil direct replacement. I realize they have blank off caps.. and I have even made one, to use a modern coil.. but the technology ( perhaps not the demand? ) is certaintly here to do it.
I've often thought about gutting a metal cased 6v square coil and using one of those square ignition coils like my 98 dodge ram uses.. should be able to fit it all in the oem can and re-rivit the top, and have a way sufficient 12v coil..
soundguy
Thanks for the ideas, from what i can see this tractor is gravity fed gas. no fuel pump, It has a holley carb on it. I plan on removing the intank filter this weekend. A friend suggested the float may not be set correctly, carb was taken apart last summer. but i did plow snow with no problems, although i was not running at high rpm's. Sooner or later we will solve this, thanks again, Joe