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Ford 9N, 2N & 8N Discussion Forum
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2N Won't Start

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Roper Bob

08-28-2004 20:29:33




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I have a 1944 2N. Here is my situation. At first the tractor had a 12 volt battery and we had the reducers in the system to reduce down to 6 volt. After a while, the battery lost it"s charge and we must of burned up the cut out relay. Don at Just 8 N"s told me my generator will not re-charge my battery and to swap back to a 6 volt battery and remove the ceramic reducer in our system. We did that and replace a new cut-out relay. The tractor will not start. We can pull it with the pickup and it will immediately start. When Dell says to polarize after installing a new battery... we are touching both sides of the cut-out relay and we hear a click sound. Also installed a new amater guage and it does not register anything ..stays at 0 on the guage? Need some help? Susan in Texas

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Joe (IN)

08-29-2004 08:51:20




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 Re: 2N Won't Start in reply to Roper Bob, 08-28-2004 20:29:33  
Give us a little more info on what you mean by won"t start. That leaves a lot to interpretation. Do you mean that the starter is spinning the engine just fine but the engine won"t run or do you mean that the battery won"t even turn the starter? If the latter is the case and you are implying that it"s dead because of the no charge condition, then try this: get the tractor started, run it at about half throttle, and then short the two cutout terminals together just like you did to polarize it. This effectively eliminates that cutout from the charging system and connects the generator directly to the battery. Now watch your ammeter and if you"ve got one, put a meter across the battery posts and watch the voltage. If your generator is in good shape, you should see the ammeter indicate a charge and the voltage across the battery rise above 6.5 volts when the cutout is shorted across. If that is the case, then the genny and wiring are fine and the cutout is flakey or bad. Don"t rule it out just because it"s new. They have a bad reputation for being DOA right out of the box.

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souNdguy

08-28-2004 20:56:08




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 Re: 2N Won't Start in reply to Roper Bob, 08-28-2004 20:29:33  
Sounds like real low compression. That was probably why the previous owner went to a 12v battery in the first place.. as a bandaid to help with the starting under low compression. The 12v on that 6v starter made for faster rpms. Pulling does the same thing. Often when you se a questionable 12v conversion, and a tractor that pull starts ok.. but woun't crank-start.. you need to do the dreaded compression check.

About whether the 3 brush 1 wire genny will adequately charge the 12v battery? It's iffy. Some report that they get decent results with the 3rd brush adjusted up.. some report poor results.

In any case, if you are running at something in between 6 and 12v, you will have a discharged 12v battery, and also still be running either too high voltage on the coil.. or have too much resistance in line with it. Choose one voltaged ( 6/12) and make sure your hardware setup supports it, and stick with it.

Report back on what you find with the compression check.

Soundguy

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