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starter switch information
Posted: Thu Mar 24, 2022 9:53 pm
by exwisehe
the attached image regarding servicing the clum ignition/lighting switch is from a ford service bulletin... i am trying to research these switches in general and assume that switches from other vendors may also be covered elsewhere... i am trying to identify the the actual (or similar) source so that i can acquire a copy.... are there copies of these bulletins available? thanks...
Re: starter switch information
Posted: Fri Mar 25, 2022 3:00 am
by TRDxB2
The description of repairing the switch is no different than it would be for the pin type that the Model T suppliers sell (when in stock). However the layout is not exactly the same. But there are Clum backing plates that are the same as the common Model T so its necessary to see the backing plate and internal parts to properly ID a switch.

- clum.jpg (45.31 KiB) Viewed 1657 times

- Ignition switch wiring screws.jpg (94.45 KiB) Viewed 1657 times
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The following shows a switch backing plate that is even different than the two above

- 923024.jpg (100.42 KiB) Viewed 1657 times
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and another Clum for a different switch
Re: starter switch information
Posted: Fri Mar 25, 2022 3:06 am
by TRDxB2
and there are more variations not just from the outside but inside as well

- SwBacks.jpg (103.1 KiB) Viewed 1657 times
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Re: starter switch information
Posted: Fri Mar 25, 2022 6:47 pm
by exwisehe
frank, i appreciate your quick response... the information that you've provided is great and i can certainly use it.... I am actually trying to find the publication that contained the page that i had posted... i don't know too much about the publications for the model t but the page i posted appears to say 'ford service bulletin' at the top of the page and each paragraph is numbered... is this from an original bulletin, or is it from a compilation of bulletins... is it part of an aftermarket book.... how can i identify the publication....
thanks....
//michael//
Re: starter switch information
Posted: Fri Mar 25, 2022 8:28 pm
by TRDxB2
exwisehe wrote: ↑Fri Mar 25, 2022 6:47 pm
frank, i appreciate your quick response... the information that you've provided is great and i can certainly use it.... I am actually trying to find the publication that contained the page that i had posted... i don't know too much about the publications for the model t but the page i posted appears to say 'ford service bulletin' at the top of the page and each paragraph is numbered... is this from an original bulletin, or is it from a compilation of bulletins... is it part of an aftermarket book.... how can i identify the publication....
thanks....
//michael//
Ha!
I may have found the source of what you have a copy of. Same everything but page numbers are different
This is a great reference
www.cimorelli.com/mtdl/default.htm
-- I then selected Bulletins
Didn't know which so I started to search 1919 - nothing
--Then1920 and git a hit (To search click on the magnifying glall then enter the search word and hit the ENTER key (@takes a bit to find it)
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-- the documents are PDF's you can skip the above and just go to the 1920 Service Bulletin
www.cimorelli.com/mtdl/service_bulletins/sb1920.pdf
Re: starter switch information
Posted: Fri Mar 25, 2022 9:33 pm
by Steve Jelf
... are there copies of these bulletins available?
Bottom line: the Cimorelli site Frank posted has all of them.
Re: starter switch information
Posted: Sat Mar 26, 2022 6:00 pm
by exwisehe
perfect..... exactly what i was looking for... the link that you provided did not work, however i was able to google the title of the book and it took me to the site... found the passage in the book.... thanks for your assistance...
//michael//
Re: starter switch information
Posted: Sat Mar 26, 2022 6:18 pm
by TRDxB2
exwisehe wrote: ↑Sat Mar 26, 2022 6:00 pm
perfect..... exactly what i was looking for... the link that you provided did not work, however i was able to google the title of the book and it took me to the site... found the passage in the book.... thanks for your assistance...
//michael//
Thanks for letting me know about the link problem. I corrected them, up above, by removing the prefix
https:// which indicates (s suffix) a secure web site