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640 no restart when hot - solved

W

William Fissell

Member
recap: 640, 12 volt, runs fine, but when shut off while hot, no restart. Spark at coil but not plugs. Rotor found burnt,
but replacing did not help.

And the answer was: the advance weights were messed up in that a there was corrosion and b the springs had rusted off.

thanks to all who patiently helped me.
 
(quoted from post at 10:49:50 06/21/15) recap: 640, 12 volt, runs fine, but when shut off while hot, no restart. Spark at coil but not plugs. Rotor found burnt,
but replacing did not help.

And the answer was: the advance weights were messed up in that a there was corrosion and b the springs had rusted off.

thanks to all who patiently helped me.
Click to expand...
hat is why I asked you to see exactly where the rotor was pointing relative to cap posts at the moment points begin to open. Did that question help you in identifying the advance mechanism failure?
 
(quoted from post at 16:24:39 06/21/15) this do it?

http://www.yesterdaystractors.com/8N12176_Distributor-Cam-and-Weight-Assembly_1745.htm
Click to expand...
can't answer that.........because the picture is for early front mount N tractor, the words for a late side mount distributor & you have a hundred series tractor! Looks like a bad bet to me.
 
From the CNH website:

Product No: FAA12176AThis part is no longer manufactured by CNHI. Please call your local dealer to see if there is any lingering dealer stock or discontinued warehouse stock
 
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