Magneto Field Coil Dimension

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
User avatar

Topic author
BE_ZERO_BE
Posts: 628
Joined: Sun Jan 06, 2019 12:27 pm
First Name: BOB
Last Name: CASCISA
* REQUIRED* Type and Year of Model Ts owned: 1916 TOURING
Location: POULSBO, WA

Magneto Field Coil Dimension

Post by BE_ZERO_BE » Mon Feb 05, 2024 4:36 pm

Does anyone know the radius (or diameter)
of the mounting bolt circle of the magneto field coil?
If possible I would like to know the dimension from the Ford drawing.
I need to layout the hole pattern for a HCCT spark ring.
Thanks for your help.

 
MAGNETO.jpg
MAGNETO.jpg (30.59 KiB) Viewed 896 times
Respectfully Submitted,
Be_Zero_Be

I drive a Model T ... Microseconds don't matter :D

For every Absolute Model T Fact there are at least three exceptions.


Dan Hatch
Posts: 5017
Joined: Tue Jan 08, 2019 7:31 pm
First Name: Dan
Last Name: Hatch
Location: Alabama

Re: Magneto Field Coil Dimension

Post by Dan Hatch » Mon Feb 05, 2024 5:17 pm

Check your email. Dan


Dan McEachern
Posts: 1400
Joined: Sun Jan 06, 2019 11:08 am
First Name: DAN
Last Name: MCEACHERN
* REQUIRED* Type and Year of Model Ts owned: too many. '14 touring, 2 depot hacks, 2 speedsters
Location: ALAMEDA,CA,USA

Re: Magneto Field Coil Dimension

Post by Dan McEachern » Mon Feb 05, 2024 5:46 pm

The holes are on a 4.125 bolt circle.
The two holes closest to the pan rail are 8.156 apart
The two top holes are 3.812 apart

This comes out to approx 8.5 degrees and 62.5 degrees from the pan rail on the 4.125 dia BC.

Almost all ford block and part dimensions are fractional dimensions in my experience.

User avatar

Topic author
BE_ZERO_BE
Posts: 628
Joined: Sun Jan 06, 2019 12:27 pm
First Name: BOB
Last Name: CASCISA
* REQUIRED* Type and Year of Model Ts owned: 1916 TOURING
Location: POULSBO, WA

Re: Magneto Field Coil Dimension

Post by BE_ZERO_BE » Mon Feb 05, 2024 9:13 pm

Dan & Dan,
Thanks for the information.
I laid it out in CAD and it is right on.
 
Magneto Bolt Pattern.jpg
Respectfully Submitted,
Be_Zero_Be

I drive a Model T ... Microseconds don't matter :D

For every Absolute Model T Fact there are at least three exceptions.

Post Reply Previous topicNext topic