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Ford 9n mag

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Stan Frank

10-19-2007 19:24:13




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Starts when cold after engine is hot weak spark will not stay running or start. I need some advise on this problem.




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Walt Davies

10-20-2007 09:48:50




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
Stan this is a site for the Case magnetos but the theory is the same for all magnetos it will give a better idea of how they work and how to fix them.
Walt



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Gerald J.

10-20-2007 09:44:55




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
With the distributor on that engine as convenient (NOT!) as it is to get to, the tendency is to run it until it won't run anymore (same way as the prewar flat head V-8s) before pulling the distributor for cleaning, adjusting, or replacing points, condenser, and rotor.

You say weak spark? What color? Yellow could be a bad condenser.

Don't use carbon core plug wires, the ignition system isn't made to overcome their losses, use only copper or steel cored plug wires.

Gerald J.

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Sean Feeney 2

10-20-2007 08:24:22




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
Dell, has always said check your weaksister ignition switch, my tractor did the same thing back in the summer replaced switch, now a0.k.



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Eddie M

10-20-2007 06:09:45




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
What kind of magneto do you have on a 9N?

My 9N has a battery and coil. Never seen a mag on one.

But a new coil and condenser would be my first guess.



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Eddie M

10-20-2007 11:07:21




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 Re: Ford 9n mag in reply to Eddie M, 10-20-2007 06:09:45  
I guess you learn something new everyday. You made me scratch my head.

"Batteries were reserved for the war effort, so the steel wheel tractors came with a magneto ignition system instead of a battery"



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Bob

10-20-2007 09:00:21




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 It's POSSIBLE it's a mag... in reply to Eddie M, 10-20-2007 06:09:45  
.
Third Party Image


Third Party Image



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Eddie M

10-21-2007 06:57:52




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 Re: It's POSSIBLE it's a mag... in reply to Bob, 10-20-2007 09:00:21  
I see that is for an 8N. Has there ever been a mag on a 9N, which is what this post is about?



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Bob

10-21-2007 13:09:59




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 Re: It's POSSIBLE it's a mag... in reply to Eddie M, 10-21-2007 06:57:52  
Some BLEM (NOT me) wrote "8N" on that mag. It should be pretty darned obvious if it will fit a front-mount 8N it will fit the 9N and 2N, as well!



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Leroy

10-21-2007 12:06:14




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 Re: It's POSSIBLE it's a mag... in reply to Eddie M, 10-21-2007 06:57:52  
The mag actually came out with the 2N in 1942 as a war time tractor with no batery or generator and on steel wheels but could have been put on any of the 9N's or 8N's with front mount distribator as well as on the 2N's. The industrial version of all the engines had only mags as they had no generator or battery and had to be hand cranked.



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Eddie M

10-21-2007 13:04:26




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 Re: It's POSSIBLE it's a mag... in reply to Leroy, 10-21-2007 12:06:14  
Very informative post, Leroy. Thanks.



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El Toro

10-20-2007 04:03:51




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
I think its a weak coil too. Hal



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36 coupe

10-20-2007 03:06:13




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
Change the condenser first.



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Walt Davies

10-19-2007 23:18:24




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
Magnetos will get dirty and rusty after awhile and need to be taken apart and cleaned from stem to stern. Especially the coils metal pieces have to be cleaned real good so that they make good contact when reassembled. Also it might need to be re-magnetized this take a special piece of equipment and will have to go to a shop that has it.
I would start with just a good cleaning and setting the points and see what happens before sending it in.

Walt

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old

10-19-2007 21:10:12




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 Re: Ford 9n mag in reply to Stan Frank, 10-19-2007 19:24:13  
If in fact its a mag then most like it has a weak coil



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