N Board Forum - Expanded Thread Page

Subject: new dsitributor

[Back] [Return to Top of Forum]

David    Posted 08-03-2018 at 08:17:47 [URL] [DELETE]        [Reply] [Email]  
  • new dsitributor
  • I installed a new distributor on my front mount 6 volt 9n
    it has not been starting and I did all the checks that were given to me and I still have no spark,it has fuel running out the bottom of the carb
    I checked the voltage at the coil and it read 6.27 volts and when I cranked it it did not drop much at all if memory serves
    I have installed new coil,plugs,wires and now distributor complete and still no spark
    I am not a mechanic by any stretch but I can not for the life of me get this going
    ran fine then just sputtered and quit

    David    Posted 08-03-2018 at 08:24:00 [URL] [DELETE]        [Reply] [Email]  
  • Re: new dsitributor
  • it has a model A generator on it with the a single wire cut out mounted on the gen.
    the previous owner had it set up with a negative ground not sure if that is part of this battle but thought I would share
    he also had a 8 volt battery on which he kept removing the positive battery terminal to protect the ignition system so he said
    I am new to tractors and just followed his lead
    I have both a 8 volt and 6 volt(new) battery for this tractor

    JMOR    Posted 08-03-2018 at 09:29:11 [URL] [DELETE]        [Reply] [No Email]  
  • Re: new dsitributor
  • Stop worrying about pos/neg ground, the generator, cut out, at least for now. They are not reason for no start/spark. Measure and tell us thebatteryvoltage, the voltage at coil, both with points open and points closed. You can bump starter until you find open and closed or put it in High gear and grab tire and Rock it a bit.

    David    Posted 08-03-2018 at 11:40:44 [URL] [DELETE]        [Reply] [Email]  
  • Re: new dsitributor
  • I am just searching for answers is all
    I thought I mentioned that the voltage at the coil barely dropped in my last post

    JMOR    Posted 08-03-2018 at 12:48:58 [URL] [DELETE]        [Reply] [No Email]  
  • Re: new dsitributor
  • I saw the 'mention', but not a value for points open and a value for points closed. If you can't get such a readings, connect a test lamp & see if brightness fluctuates upon opening & closing.

    David    Posted 08-03-2018 at 17:57:23 [URL] [DELETE]        [Reply] [Email]  
  • Re: new dsitributor
  • it drops to 5.7 there is no fluctuation nada el zippo
    the tractor is an hour drive away so I can't just do these diagnostics
    immediately but I do take all the info and test when I can get to it
    would it matter if I have a 6v or 12v coil on it
    the place I bought it from has both and I may have a 12v on when using a 6v battery
    just checking

    JMOR    Posted 08-03-2018 at 21:08:58 [URL] [DELETE]        [Reply] [No Email]  
  • Re: new dsitributor
  • It does not sound like the points are actually opening and closing the current path through the coil. There are many possibilities for the lack of continuity here.

    David    Posted 08-03-2018 at 18:09:08 [URL] [DELETE]        [Reply] [Email]  
  • Re: new dsitributor
  • just an observation in all the times I have removed this distributor I have noticed that the pegs on the back of the distributor are in the same location
    now I know I am having electrical problems but as many times as the tractor has been turned over they are in the same spot is this normal?

    kevin n mn    Posted 08-04-2018 at 06:56:45 [URL] [DELETE]        [Reply] [No Email]  
  • Re: new dsitributor
  • If that is a concern turn it over with the cap of and make sure the rotor is turning.

    Tim Daley(MI)    Posted 08-03-2018 at 21:39:25 [URL] [DELETE]        [Reply] [No Email]  
  • Re: new dsitributor
  • Pegs? Go back to the basics, did you set the timing correctly, 015" (front mount) on the new points? Have not heard anything about that important part. Once points are set, do the continuity tests per Bruce(VA)'s procedure before you put it back on. When it passes, assemble cap and coil, mount in a vice on an ear, take battery charger clip and clamp vice or distributor base to make ground connection. Take other charger cable/clip and touch coil post. You will get a small spark or not. By turning the cam you will see a spark when points open and close. Once this test passes, mount distributor on tractor correctly. Take a reading of your battery voltage static. then, take your VOM and touch one probe to the LH terminal on the Ballast Resistor. That is where the coil wire connects to. Take the other probe and touch it to tractor ground/frame. Turn Key Switch ON. Voltage reading should be same as battery VDC reading with points open, half that with points closed. A pass means you are getting voltage to the connection at the resistor post, so now do the same test only touch the coil terminal post itself and ground other probe, key on. You should see the same results. If not chances are coil is bad.

    One last test before trying to fire up engine - Check for spark. Up to this point, everything passes the test phase.

    Tim Daley(MI)


    From Bruce(VA) -

    With the distributor still off the tractor, follow these steps:
    1. Coil off, cap off, points open. One probe on the brass screw & the other on both sides of the open points. On the side closest to the cam, you should have continuity. Not on the other side! If you do, you will also have continuity everywhere because the points are grounded.
    2. Coil off, cap off, points open. One probe on the brass screw & the other anywhere on the body of the distributor. You should have no continuity! Now, rotate the tang on the distributor....as the points open & close, you have continuity (closed) and lose it when they open.
    3. Put the coil on the distributor, cap off, points open. One probe on the lead on the top of the coil, the other on the cam side of the open points. You should have continuity!
    4. Coil on, cap off, points open. One probe on the lead on the top of the coil, the other anywhere on the body of the distributor. You should have no continuity!

    David    Posted 08-05-2018 at 11:38:08 [URL] [DELETE]        [Reply] [Email]  
  • Re: new dsitributor
  • ok set the timing set the gap.o15 did Bruces check on dist
    passed tried your test no spark on top of dist or when points open or close
    so bad coil?

    [Back] [Return to Top of Forum]


    Top