F4 Magneto impulse coupling Thread size

Posted by James Herrman on February 14, 2005 at 16:13:08 from (66.249.51.189):

Am trying to remove the impulse coupling from my F4 Mag. What thread size is it???? Owatonna Tool Co. used to make a puller for them (MT-50) Tried to make one today, but am having a hard time trying to figure the thread size. It is not 1/2 x 20 so we moved up to 9/16 x 18. Still does not seem to be the correct thread. What else could it be????????? Would appreciate any help so that I can get the old F20 back on the road or at least get the mag done. Thanks in advance. JIM in central ILL.

Follow Ups:

• Re: F4 Magneto impulse coupling Thread size aitch 01:14:46 02/15/05 (1)
  • Re: F4 Magneto impulse coupling Thread size James Herrman 16:34:21 02/15/05 (0)
• Re: F4 Magneto impulse coupling Thread size Nebraska Cowman 20:12:00 02/14/05 (0)
• Re: F4 Magneto impulse coupling Thread size MagMan 17:13:23 02/14/05 (0)
• Re: F4 Magneto impulse coupling Thread size JT 16:20:41 02/14/05 (1)
  • Re: F4 Magneto impulse coupling Thread size James Herrman 17:14:43 02/14/05 (0)

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