Mag post short.

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Mike Robinson
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Joined: Sun Feb 24, 2019 11:36 pm
First Name: Michael
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* REQUIRED* Type and Year of Model Ts owned: 1926 Speedster 1914 Speedster 1925 Touring 1926 roadster pickup
Location: Escalon CA
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Mag post short.

Post by Mike Robinson » Wed Aug 05, 2020 2:30 pm

Has anyone had a mag short out from what I think is band lining and oil touching the post ?My mag failed and after checking the switch and replacing it found this at the contact point For the post. All connections were good and still no voltage. I cleared that goo away and all is ok now.
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RajoRacer
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First Name: Steve
Last Name: Tomaso
* REQUIRED* Type and Year of Model Ts owned: 1914 Touring, 1919 Centerdoor, 1924 TT C-Cab Express, 1925 Racer
Location: Longbranch, WA
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Re: Mag post short.

Post by RajoRacer » Wed Aug 05, 2020 3:45 pm

Yep, that will surely do that !

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Bill Robinson
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* REQUIRED* Type and Year of Model Ts owned: '21 Depot Hack, '25 Touring Car, '26 Roadster Pickup, '27 Tudor, & another '27 Tudor
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Re: Mag post short.

Post by Bill Robinson » Wed Aug 05, 2020 3:58 pm

I've had it happen a couple of times over the years. Wire will short it out too- look closely in the mirror
lint_more.JPG
Lint.JPG


Topic author
Mike Robinson
Posts: 78
Joined: Sun Feb 24, 2019 11:36 pm
First Name: Michael
Last Name: Robinson
* REQUIRED* Type and Year of Model Ts owned: 1926 Speedster 1914 Speedster 1925 Touring 1926 roadster pickup
Location: Escalon CA
MTFCA Number: 22510

Re: Mag post short.

Post by Mike Robinson » Wed Aug 05, 2020 4:53 pm

I was driving at a steady speed and it shut off completely. Restarted on battery fine but didn’t run anymore on mag. I’m just happy it wasn’t the mag that failed.

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rondupree
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Re: Mag post short.

Post by rondupree » Thu Aug 06, 2020 9:45 am

Just completed a full restoration on a 1927 touring car. With less than 100 miles on the car the mag quit. The mag post looks like Bill's. I disassembled the post, wiped it out good, and the mag started working again. I could not see any metallic debris inside the post, but it looks like the perfect debris catcher.
Ron Dupree


Adam
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Re: Mag post short.

Post by Adam » Thu Aug 06, 2020 10:05 am

It’s in the FORD instruction manuals as one of the first things to check.


Vrayfoster
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Re: Mag post short.

Post by Vrayfoster » Thu Aug 06, 2020 5:59 pm

I switched to Kevlar bands and ever since then, no strings shorting out my mag post.

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