9N eating points

Tim Anderson · Jul 24, 2009

I recently converted my 1947 9N to 12 volt. This conversion has been successful, with the exception that the tractor is going through points very quickly. I have replaced two sets so far in 2009. I also replaced the resistor which failed earlier this spring.

Any tips on what is needed to solve my point problem?

Thanks for help,
Tim

Janicholson · Jul 24, 2009

The voltage after the resistor should be close to 6v with the points closed, or the distributor to points grounded. if it is more like 8 to 10 volts, it will eat points. Use a ballast resistor for a mid sixties chevrolet. JimN

Crazy Horse · Jul 24, 2009

No offense meant to yourself or anyone else who converts an older tractor to 12V, but really, doing so indicates some problem in the past like starting, etc. which the 12V system seems to take care of. It's sort of an expensive bandaid fix. It doesnt' however take care of the "problem" that people have with the 6V system in the first place. A lower compression tractor engine like those we play or work with should start almost instantly on a decent 6V battery (even in cold weather) but only IF the essential components are working properly, like carburetion, spark, timing, good wiring, and compression. If all of those factors are taken care of and in good order, there should be no need for the conversion in the first place. Well, off my soap box for now ...... the advice others have given you is good advice if you stick with the 12V conversion.

Ron/PA · Jul 24, 2009

While I know we're talking apples and oranges, there really are some valid reasons to convert to 12V.

Our 8N and H are still 6V and start just fine, we've converted our 9N and WD to 12V.

The N runs a custom sprayer we built that has each nozzle controlled by a 12V solenoid. They just weren't available in 6V. This has sprayed countless miles of Borough roads, lawns for parties as well as a few fairgrounds. Living in some fairly twisty curvy country roads, we felt the need for much better lighting than 6V could provide for our safety. It also allows us to run a sufficient light bar and gum balls to satisfy our insurance company to cover us for evening hay rides.

While it's true that we converted these two before we had the M/F 65 and the Ford 3000 we still use them both for their intended purposes, as well as in the field tractors.

None of this addresses the real issue that is, the N can now run a 12V beer cooler, and that's worth the hassle of conversion alone. :mrgreen:

Ron

old · Jul 24, 2009

A bad condenser will cause that type of problem or having the wrong resistance ballast resister will also cause that.

old · Jul 24, 2009

Well to tell the truth I convert ALL my tractors to 12 volts not because I have ever had any problems with them it is to save $$ in the long run. A 12 volt system has easier to maintain then a 6 volt system and when you have more tractors then batteries it make it easy to just grab a battery and run when you need to

Richard G. · Jul 24, 2009

Forget the resistor. Get a 12 volt coil with internal resistor and there will be no problems. All my old tractors with starters have 12 volt conversions like this and never give problems.
Richard

greenbeanman in Kansas · Jul 24, 2009

I hope that we can agree to disagree.

While I do understand what you are saying about any particular system being in good condition and properly starting a vehicle I do tend to disagree and fully believe that 12 volt systems are superior by far.

Not really a fair comparison but I liken it to water pressure in a pipe. Which is generally better, 30 psi or 10 psi for moving water. Electrons I guess is what we are moving instead.

If voltage made little difference then battery operated power tools would not have become 18 volts rather than the voltage of earlier models.

Same for autos, if 6 volts were just as good as 12 a newer system would not have been adopted across the board. It did take a long time though.

I certainly agree about saving money in the long run with a change to a 12 volt system. In my 1949 Chevy truck I ran a 6 volt system until the charging system faltered and then I switched to a 12 volt system. Much more cranking from a small under floor 12 volt battery than the old 6.

Hobo, NC · Jul 24, 2009

Go over to the 9N,2N,8N board and Bruce,VA will talk you thru the conversion. You issue is more that you have a front mount dist that was a P.O.S. from the get go,,, 6 are 12V,,, all I can say is a man with a properly set up 12V system is a happy man. To bad it can not B brought in a kit form,,, the parts suppliers have done a pizz poor job on the kits for a front mount.

old · Jul 24, 2009

No such thing as a true 12 volt coil for the front mount N series fords so sorry to say that will not work

Brian Jasper co. Ia · Jul 25, 2009

You need to have a primary resistance of 3 ohms. Any less and the points burn fairly quickly.

9N eating points

Tim Anderson

New User

Janicholson

Well-known Member

Crazy Horse

Well-known Member

Ron/PA

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old

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old

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Richard G.

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greenbeanman in Kansas

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Hobo, NC

Member

old

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Brian Jasper co. Ia

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