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Old 07-25-2014, 03:31 PM   #1
ken1915
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Smile Magnet cap screw Torque

Anyone have a good torque value for the capscrews that hold the magnets to the flywheel? My capscrews donot have a hole for safety wire.
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Old 07-25-2014, 08:39 PM   #2
redmodelt
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Default Re: Magnet cap screw Torque

Tight! They are so close to center that I guess Ford found out that they don't unscrew and did not need the wire. They are installed without lock washers, don't use then. I just pull them tight with a standard 1/2 drive ratchet.
Torque values in the Model T and A era were set by the length of the proper wrench for the job.
Rod nuts (3/8) are about 35, head bolts (7/16) 40 to 50 (35 to 40 on the early blocks) so should be some where in between 40ish maybe.
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Old 07-25-2014, 09:21 PM   #3
J Franklin
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Default Re: Magnet cap screw Torque

I don't worry about torque either. I use locktight blue. Use the red if you don't plan to open them up again.
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Old 07-25-2014, 09:36 PM   #4
ken1915
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Default Re: Magnet cap screw Torque

Thanks for the info. I think I will torque to about 40 and use some blue locktight.
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Old 07-25-2014, 10:47 PM   #5
J Franklin
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Default Re: Magnet cap screw Torque

Snap!
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Old 07-27-2014, 12:38 AM   #6
redmodelt
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Default Re: Magnet cap screw Torque

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Snap!? If a 3/8 fine threaded (cap screw) bolt breaks at 35 to 40 foot pounds there was something wrong in the first place.
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Old 07-27-2014, 10:11 AM   #7
J Franklin
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Default Re: Magnet cap screw Torque

You might be right but there are are always easyouts &helicoils.
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Old 07-27-2014, 02:54 PM   #8
tmodelman
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Default Re: Magnet cap screw Torque

3/8" fine cap screw if Ford original used magnet clamp bolt is probably at best a grade 2 .

Torque would be way less than 40 lb. ft.!

Just snug it tight with a 3/8 socket wrench with a 8" handle, that is plenty.
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