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Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

Re: 9n ignition

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soundguy

06-17-2013 05:49:14
184.240.206.35



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no spark eh?

check power to the coil.

sound slike you should be using the oem ballast resistor plus another one if you are also using the oem 6v coil.

check to see if the poiunts have closed up.

put a test lamp inline with the coil. run engine over. should blink.

if it stays on.. you have a short in the dizzy.

if it never comes on.. points are not closing electrically.

improper, too close, points gap will show as burned points.

open condensor will show as burned points.

shorted condensor shorts points.

post back

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Glenn D

06-17-2013 06:03:52
24.114.69.207



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 Re: 9n ignition in reply to soundguy, 06-17-2013 05:49:14  
Coil has got power. only had a test light with me yesterday and that a good tip on making it blink though. I can try that. there are 2 ballast resisters on this engine and both were good. it was getting spark then suddenly it wasn't so something happened. All the parts are new in the distributor but I only replaced the points and gaskets myself I don't know the history or condition of the other parts. I do know the new points I found it with were installed wrong and of really poor quality. I also added plugs and wires to this engine.

The ballast resistors are both aftermarket ceramic types. one 1.5 ohm the other was 1.2 ohm I had previously tested them and the coil was 1.5ohm

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Bruce (VA)

06-17-2013 06:36:51
24.125.80.178



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 Re: 9n ignition in reply to Glenn D, 06-17-2013 06:03:52  
" The ballast resistors are both aftermarket ceramic types. "

They aren't ballast resistors. They are fixed resistors. While they aren't causing the problem you have now, your life will be a lot simpler if you use a 12v coil & the OEM ballast resistor.

" only had a test light with me yesterday "

Take a meter w/ you. You need to measure voltage w/ the points open & closed.

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soundguy

06-17-2013 06:21:19
184.240.206.35



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 Re: 9n ignition in reply to Glenn D, 06-17-2013 06:03:52  
1.5 ohm 6v coil eh?

i think you may have a bit much primary resistance. i'm countinh 4.2 ohms. and that will make for about 2.85 amps

and since they are a plain cermaic type. they will be like that when cold.. menaing it may start hard. using the oem ballast resistor with it's thermal properties is usually more desireable, as it is lower ressitance when cold. still. if it WAS running with that setup. no need to muck with it. front coils are all over the place these days. I have seen plenty of 6v front coils that are .8-1 ohm.

1.5ohm is almost in sidemount 6v coil territory.. :)

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Glenn D

06-17-2013 06:37:16
24.114.69.207



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 Re: 9n ignition in reply to soundguy, 06-17-2013 06:21:19  
Yes I thought since another post thread here said to keep it around 3.5a or lower then it would be safe so I left it like that.... it was starting ok just not running for long or tach-ing up. if I took one of them out. (I'll check the OE one, it's still under the dash but looks pretty bad and the one on the 2N was broken in half so I can't use that one) will it be ok at 4.4a ?



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soundguy

06-17-2013 06:50:28
184.240.206.35



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 Re: 9n ignition in reply to Glenn D, 06-17-2013 06:37:16  
if it will 'start' like it is.. don't mess with it. starting will be the hardest part.. once started.. it should run fine.

again. if good spark on a cold start. go with it.



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Glenn D

06-19-2013 06:32:39
24.114.74.20



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 Re: 9n ignition in reply to soundguy, 06-17-2013 06:50:28  
Welp turned out to be the breaker plate in the distributor is bad. it had some rust on it and the screw where the spring on the bottom of the coil broke out of the breaker plate. It was pretty clean by then I guess the PO cleaned it somehow but what was left was just too weak.
So the new breaker plates come with the nose bushing so while I'm there should I get the shaft and weights too? the shaft seems ok but the weights are pretty dirty and don't spring back like they should.

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soundguy

06-19-2013 06:48:13
108.112.22.234



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 Re: 9n ignition in reply to Glenn D, 06-19-2013 06:32:39  
see if they will clean up and move freely. no need to spend money if you don't have to. if they turn out to be bad. of course replace them.. etc.



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Glenn D

06-19-2013 08:10:27
24.114.74.20



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 Re: 9n ignition in reply to soundguy, 06-19-2013 06:48:13  
They freed up nicely, thanks.



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soundguy

06-19-2013 10:04:28
184.240.128.228



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 Re: 9n ignition in reply to Glenn D, 06-19-2013 08:10:27  
cool.. saved ya some coffee money!



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