[AT] Coil test?

[Bigdog]

Ralph,
    To test the condenser use an analog style ohmmeter set on a high ohms scale ( R X 1K or higher ).  Touch one lead to the case and the other to the lead while watching the meter.  The meter should briefly deflect and then return to infinity.  Reverse the meter leads and repeat the test.  You should see the same thing with the meter connected both ways.  If the meter needle does not return to infinity or very close to it the condenser is bad.  This test should be performed with the condenser out of the circuit.
    It is still not a real reliable test as it will not indicate a condenser that is breaking down with heat or voltage.  The only reliable test for a condenser is replacement.  (and sometimes even that doesn't work)

Bigdog
  ----- Original Message ----- 
  From: Ralph Goff 
  To: Antique tractor email discussion group 
  Sent: Monday, January 10, 2005 3:50 PM
  Subject: Re: [AT] Coil test?



  ----- Original Message -----
  From: Mike Sloane <mikesloane at verizon.net>
  To: Antique tractor email discussion group <at at lists.antique-tractor.com>
  Sent: Monday, January 10, 2005 6:16 AM
  Subject: Re: [AT] Coil test?


  > All I keep seeing on this thread is that "it has to be either a fuel
  > delivery or coil problem". Nobody seems willing to allow for either a
  > bad condenser or vacuum leak. In my experience, a vacuum leak, created
  > by a slightly warped carburetor or manifold getting hot, would create
  > the same problem. I don't see how a bad coil would be overcome by
  > closing the choke; it never has for me when I have had bad coils.

  Mike, I wouldn't have suspected the coil either until my friend with the
  2010 JD mentioned it happening to him. He swears that after the coil was
  replaced he never had the problem again.
  This problem on my 40 seems to have just come out of nowhere as it ran good
  up til about a few weeks ago. It ran the hammer mill without hesitation up
  until about the middle of December. The carb and manifold have not been off
  this tractor in probably 15 years.
  Now the condensor is something I have not tested although I did replace the
  points. In my experience the condensors seem to last a lot longer than the
  points on these tractors. How would a person test a condensor?

  Ralph in Sask.
  http://lgoff.sasktelwebsite.net/


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