641 6 volt coil question

[Jim.ME]

A 641, heck any ford models before 1965, is not wired to supply 12 volts to a 6 volt coil while the solenoid is active.
Using the solenoid style that can be wired that way will disable the starter interlock safety feature.
Keith

It can be done by using a 5 terminal, isolated base solenoid. Standard Motor Products SS582 (Echlin ST83) is one. I believe Standard Motor Products SS590 (Echlin ST96 or ST96SB) is another that should work.

 

[Tony Jacobs]

It can be done by using a 5 terminal, isolated base solenoid. Standard Motor Products SS582 (Echlin ST83) is one. I believe Standard Motor Products SS590 (Echlin ST96 or ST96SB) is another that should work.

Yes sir Jim ST-83 works fine been using them for years . No modifications to the original Ford wiring harness , just a length of wire from the solenoid to the coil .

 

[Tony Jacobs]

That was the last official model year, but they continued to make small batches of various 4 cylinder models after that. Mostly the 4 cylinder 2000 offset model. They continued making those until the 1710 offset was release because certain customers kept demanding small offset tractors.

The Only 4 cylinder tractor that was built was the Offset . Ford documentation only shows it being built until 1969 . The Jap Scrap 1710 came out in the 80’s Ford wasn’t building any Offsets that long . Now wether there was any built Offsets sitting in some parts Depot that could have been a possibility but not one I was aware of .

 

[Tony Jacobs]

I had a 63 vw bug, 6 volt negative ground

Never worked on anything built by the Facist Five and never will never mind own one .

 

[Tony Jacobs]

Page from my veteran Neihoff electrical parts catalog.View attachment 158433

That’s interesting but as I said never saw it , never learned it . Never had a Chevy between the 1940-1954 year range because they were not in my interests . Failures like Nash , Packard and Studebaker were never interest to me either so I never payed any attention to them either .

 

[Keith Williams]

It can be done by using a 5 terminal, isolated base solenoid. Standard Motor Products SS582 (Echlin ST83) is one. I believe Standard Motor Products SS590 (Echlin ST96 or ST96SB) is another that should work.

I stand corrected.
Thank you for the detailed drawing.
Keith