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Subject: The aha moment - 8N followup

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K.LaRue-VA    Posted 09-15-2018 at 15:36:28 [URL] [DELETE]        [Reply] [No Email]  
  • The aha moment - 8N followup
  • I have several tractors, so when one does not start, and does not respond to the obvious fixes, I crank a different one up and do something else. I've been fiddling with the 6 volt side distriibutor 8N several times over the last few weeks. Sparks have been weak or none. Tried a different coil. Checked voltages. Everything looks good. Still little or no spark. Today, I wanted to use the back blade, and it was either get the 8N running or swap implements. One voltage I did not check was across the points. In the past those either worked or they didn't. I file them routinely rather than replace them. My theory is that all the rain (humidity) this summer caused some deposits to form on the points, maybe with them open. What I discovered is 1.2 ohms of resistance across the points! Filed them several times until whatever was on them was removed. Zero Resistance with points closed. Checked and reset the gap. VvrrooM! That is a new one on me. Never seen anything but open or closed with any set of points.

    Dave H    Posted 09-17-2018 at 07:37:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: The aha moment - 8N followup
  • If you are short on paper bags, a well used 1 dollar bill works for me.

    Tim Daley(MI)    Posted 09-16-2018 at 02:58:03 [URL] [DELETE]        [Reply] [No Email]  
  • Re: The aha moment - 8N followup
  • Excellent! A perfect example of root cause problem solving. The one thing you may want to change is filing the points. Any abrasive action will remove the fine finish on a surface and actually make it more prone to oxidation. You could try a piece of paper bag slightly damp, not soaking wet, with some mineral spirits to remove any oil residue, then a few passť with a dry piece to clean the points with. A file, emery cloth, krokus cloth, sandpaper, et al are not recommended to clean points.

    Tim Daley(MI)

    Jack - Iowa    Posted 09-16-2018 at 06:46:58 [URL] [DELETE]        [Reply] [No Email]  
  • Re: The aha moment - 8N followup
  • I've filed points for over 70 years with no resultant problems. 2N has filed points on it right now and I fully expect it to start when I want.

    K.LaRue-VA    Posted 09-16-2018 at 11:19:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: The aha moment - 8N followup
  • I don't know how anyone ever gets a new set of points to work using just a piece of a paper bag. Where do you even get paper bags? The term "point file" may be misleading. The ignition point file I use most often is really a burnishing tool. I do have have some thin files but would only use those on a set of points if they were badly pitted. In that case, I'd finish with the burnishing tool and put a new condenser in there because the old one is the wrong rating or has failed.

    deanostoybox    Posted 09-16-2018 at 11:31:44 [URL] [DELETE]        [Reply] [No Email]  
  • Re: The aha moment - 8N followup
  • Have kept a burnishing tool by the light switch in the shop for many years. Had to resort to the brown paper bag when installing new points in a friends 2N about 30 miles from home. Now I carry a spare burnishing tool (GC 9338) in my wallet.

    R Geiger    Posted 09-15-2018 at 16:39:20 [URL] [DELETE]        [Reply] [No Email]  
  • Re: The aha moment - 8N followup
  • That wold have been the first thing I would have checked on my side mount 8N.

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