[AT] Coil test?

[Ralph Goff]

Thanks Bigdog, unfortunately my tester is digital. I burnt out my old analog
one .

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

----- Original Message -----
From: Bigdog <dbigdog at columbus.rr.com>
To: Antique tractor email discussion group <at at lists.antique-tractor.com>
Sent: Monday, January 10, 2005 3:50 PM
Subject: Re: [AT] Coil test?


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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