Topic: 1947 Mercury Ignition Switch assembly pictures


Moon-Man    -- 09-04-2025 @ 1:18 PM
  Does anyone have a picture or drawings of what an early ‘47 Mercury on/off lever switch assembly look like?

I am looking to understand what is inside the Bakelite box, before opening it up.


I suspect that something is corroded or wore out inside, as the engine sometimes shuts off, and if I flip the switch a few times, I can stop the shutdown.


Much Thanks!


carcrazy    -- 09-04-2025 @ 8:06 PM
  Maybe some of these pictures of ignition switch components will give you an insight into how the switch is assembled.

https://cgfordparts.com/catalogsearch/result/?q=ignition%20switch&finder%5B1%5D=4771&finder%5B2%5D=4886&finder%5B3%5D=5094&find=find


ford38v8    -- 09-04-2025 @ 8:32 PM
  Moonman, just go for it, it's not rocket science. Open it up and you'll immediately see the problem and can make an effort to reface the worn carbon rub plate, make a slight bend on the brass switch to make better contact, or replace the whole switch itself.

Alan


Moon-Man    -- 09-05-2025 @ 5:54 AM
  Thanks, I was worried about tiny parts, tiny springs, and working in a cramped space….

I agree that I should get over it and open it up to see what’s going on!


Sounds good.


-Fred.


Moon-Man    -- 09-15-2025 @ 3:35 PM
  I got it off, and am happy to report that after years of chasing random shut offs, and occasional hard starting, that I believe I’ve found the cause!

Now, I just need to reassemble it with new parts…



ford38v8    -- 09-15-2025 @ 9:34 PM
  Fred, congrats!

Alan


EFV-8 Club Forum : https://www.earlyfordv8.org/forum
Topic: https://www.earlyfordv8.org/forum/viewmessages.cfm?Forum=16&Topic=17745