Testing Coil Box Outside of Car

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1912touring
Posts: 171
Joined: Sun Jan 06, 2019 3:16 pm
First Name: Michael
Last Name: Hanson
* REQUIRED* Type and Year of Model Ts owned: 1910 Touring, 1912 Touring
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Board Member Since: 2011

Testing Coil Box Outside of Car

Post by 1912touring » Fri Aug 28, 2020 11:38 pm

Hello MTFCA.

Is there a way to test the functionality of a coil box (with four rebuilt coils) and switch outside of the car?

I have a wood coil box that was built a few years ago that I plan to use for my 1910 project. However, I am not sure that switch and the contacts inside the box are up to par. Is there a way to test the box and switch to make sure that it is serviceable?

Many thanks,
Mike

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Steve Jelf
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Joined: Fri Jan 04, 2019 9:37 pm
First Name: Steve
Last Name: Jelf
* REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
Location: Parkerfield, Kansas
Board Member Since: 2007
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Re: Testing Coil Box Outside of Car

Post by Steve Jelf » Fri Aug 28, 2020 11:57 pm

Turn the switch to BAT. Touch one lead to the BAT terminal on the box and the other to the strip in the bottom of the box. If the meter shows continuity the switch is working and the circuit is OK. Turn the switch to MAG. Touch one lead to the MAG terminal on the box and the other to the strip in the bottom of the box. If the meter shows continuity the switch is working and the circuit is OK. Turn the switch to OFF. Repeat the BAT and MAG tests. If there's no continuity the switch is working.
The inevitable often happens.
1915 Runabout
1923 Touring

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