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Subject: 9n Distributor

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David    Posted 07-27-2018 at 15:49:18 [URL] [DELETE]        [Reply] [Email]  
  • 9n Distributor
  • Does anyone have a diagram of how a front mount 9n distributor is assembled?
    I have cleaned and reassembled this so many time and still no spark I am doubting that I have it together correctly

    Tim Daley(MI)    Posted 07-28-2018 at 04:32:17 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9n Distributor
  • David-
    Your 9N, is it 6V/POS GRN or a 12V job Ėsome of us donít keep track of these things due to CRS as old age sets inÖ ; > ) GRIN.

    Letís start over. As Bruce(VA)answered your question already, the 39-53 MPC and the I&T F-04 Manual have both the distributors shown in exploded views detailing the assembly and identifying each part by number. I have to ask next, because sometimes itís the basics that get overlooked. When you rebuilt your front mount distributor, did you set the timing correctly? At re-installation, did you get the plug wires right for the correct firing order? Have you checked the voltage at the coil side of resistor? Looking at the OEM Ballast Resistor from the front of the tractor, the coil wire is connected to the Left Hand terminal post on the resistor. Voltage should be battery voltage with points open, and half that with points closed. If that checks GOOD, move on to a point issue.





    Tim Daley(MI)

    David    Posted 07-28-2018 at 07:20:51 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • I do have manuals but not any that give me the view I need until now
    after looking at this diagram above I do indeed have mine assembled incorrectly and can now put it together correctly
    thank you all

    Tim Daley(MI)    Posted 07-28-2018 at 08:20:46 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9n Distributor
  • Okay, good. What about timing? FWIW, the I&T F-04 manual, edition 2000, shows on page 125 the front mount distributor exploded view as it's assembled with the part list below. Hang in there and keep at it, we're all pulling for you.

    Tim Daley(MI)

    David    Posted 07-28-2018 at 15:13:19 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • Well I did have it assembled incorrectly however that still did not help
    what I did was I put the cooper band from the points underneath the concave brass condenser screw I now have it underneath the square insulator but it still will not spark.I wonder if I could have shorted out the condenser? Also should I have power at the generator I get a 6.27v reading at the generator.I have a unique generator with the cut out mounted on top of the generator it is a model T set up.There is 1 wire running to the starter solenoid from the cut out and that is where I pull the 6.27 volts.I would think there should be no voltage there but I may be way off..

    Tim Daley(MI)    Posted 07-29-2018 at 06:22:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9n Distributor
  • Your generator isn't from a Model T, more likely a Model A or early V8 type. Anyway, the copper strip goes between the points & the insulator under the concave brass screw. If it came out, you have a problem because it is supposed to be permanently attached to the insulator. Make a new strip out of the strip on the old points. Get a small plastic license plate grommet to replace the old insulator.

    Tim Daley(MI)

    Farmer Dan    Posted 07-29-2018 at 10:08:17 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • If you lose that copper strip or it is broken you can replace it with copper wire. Here is a picture of one I recently rebuilt.

    Tim Daley(MI)    Posted 07-30-2018 at 04:35:54 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9n Distributor
  • Nice work, Dan, and great photo. This'll help in the future for others too. I'll see you on Friday, 8/3/2018 to work on Maude.

    Tim Daley(MI)

    Tony C    Posted 07-29-2018 at 14:56:09 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9n Distributor
  • Nicely done, Dan.


    Farmer Dan    Posted 07-29-2018 at 18:02:23 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • Thank you. Once get back into my shop I'll make some more of those coil screws.

    Tim Daley(MI)    Posted 07-29-2018 at 04:21:35 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9n Distributor
  • 6.27 volts sounds like battery voltage. Ya'll gotta buncha cobbled-up wiring for sure. The 9N/2N starter used no solenoid. There is only one wire to it and it feeds to the push button starter switch on one side and the other side terminal on that switch feeds to the cutout BAT terminal where the NEG battery cable wire also connects to. SEE the electrical diagram in my other post. If you have a solenoid on the starter it is an 8N starter so it would have 3 wire connection posts on the solenoid. Which wires are connected to the solenoid and where do those wires go? Just a suggestion here, why not think about getting the correct 1-wire/3-brush generator and correct 9N 1-wire starter and start over? Get the wiring all corrected then your problems/worries may be over. I don't think your distributor is the problem; it should be fine and the condenser should be fine. I don't think it ever received any voltage to do any damage -just my opinion. Here's an 8N starter. Note the solenoid has 3 posts. How is your 9N wired? Details on which wires are connected to which post and where those wires go to is important.


    Tim Daley(MI)

    HCooke    Posted 07-28-2018 at 16:28:08 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • Forget your generator and charging circuit for now. That has absolutely nothing to do with your no spark condition. The tractor should start and run fine (for a while) even if the generator isn't working. Several people have asked if you have battery voltage at the top of the coil with the ignition switch on and the points closed. It should drop to half that much when the points close.

    David    Posted 07-28-2018 at 21:16:11 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • yes thanks I answered that quite awhile ago
    yes I have 6.27 v at the top of the coil

    HCooke    Posted 07-28-2018 at 21:21:41 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • And most important, does the voltage drop down to about half that when the points close?

    David    Posted 07-29-2018 at 08:30:18 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • Let me try and clarify
    the starter solenoid I refer to is the start of the push starter on the floor
    not on the actual starter
    there are only two wires feeding the ignition one comes from the generator the other the coil
    the one from the gen goes to the solenoid the other to the resistor
    the one on the solenoid is spliced with another wire that runs to the bottom of the resistor
    mine is set up on a neg ground which is opposite from what all I have been reading
    I believe that this dist was and is cobbled together because it has a spring clip that was apparently been broken and looks as though it has been filed down by being in the way of a rotating part
    I have all the parts to set this tractor up the way it was intended to be but as of now have been holding off on doing so
    would all recommend doing that or try and figure it out as is which has been very frustrating

    HCooke    Posted 07-30-2018 at 07:42:18 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • You have not answered my question. Does the voltage at the top of the coil drop to about half battery voltage when trying to start the tractor?

    David    Posted 07-30-2018 at 07:52:36 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • tried to check once but was unsuccessful at it
    so to answer your question I am not sure but I will
    check the next time I am near the tractor

    HCooke    Posted 07-30-2018 at 08:41:21 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • This is critical to diagnosing your no spark problem. Another way to to this is to attach a test light to the top of the coil and ground it somewhere. When the ignition is on the light should glow. When you crank the engine with the ignition on, the light should alternately glow light and dim. This shows that your points are working. Do this and report back.

    David    Posted 07-30-2018 at 15:55:00 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • I will
    I just got my wife back from the hospital
    she has been in the last 12 days recovering from
    brain surgery (tumor removed)
    now I can get more serious about the tractor
    thank you all for your assistance

    HCooke    Posted 07-30-2018 at 18:33:29 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • You are welcome. Take care of the Mrs. If you need more help maybe start a new thread. Just to remind you. Get the spark situation fixed first and then we can help with the other issues. The spark problem is in your distributor!

    Bruce    Posted 07-27-2018 at 18:15:36 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • I replied to your earlier post with a detailed response. Didn't you see that?

    Bruce    Posted 07-27-2018 at 18:14:53 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • I replied to your earlier post with a detailed response. Didn't you see that?

    David    Posted 07-27-2018 at 19:15:46 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • Yes I did and thank you
    went through all but still no spark
    that is why I would wonder if I have it together correctly

    Bruce (VA)    Posted 07-27-2018 at 20:06:39 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • Do you have the I&T FO4 manual and the MPC? (tip # 39)

    HCooke    Posted 07-27-2018 at 17:37:31 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9n Distributor
  • Get you your multi tester and set it on resistance. Ground one lead to the case. Attach the other lead to the brass screw at the top of the distributor. With the points open there should be infinite resistance (the meter should not move). With the points closed there should be no resistance (the meter should peg out).

    Try this and post back.

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