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Mechanical Brake Lights Switch
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dels56
Posted 2021-03-05 12:24 PM (#609520)
Subject: Mechanical Brake Lights Switch


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I have done a disc brake conversion on my 56 Dodge Custom Royal and in doing so replaced the master cylinder with a dual reservoir unit. To use an original style hydraulic pressure switch meant I would have to T the switch inline someplace, which I did not want to do. As we all know those darn old pressure type switches were not that reliable. anyway, so lets do a mechanical. switch. I searched around and didn't like any of the automotive switches as they were all to large. I my quest I found a Honda Motorcycle brake light switch. Cheap and readily available (Amazon).

Fabricating a switch mount bracket was a chore. I have sketches if anyone wants to do the same.

Del S

Edited by dels56 2021-03-05 12:41 PM




(IMG_6937 (2).JPG)



(IMG_6938 (2).JPG)



(IMG_6939 (2).JPG)



Attachments
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Attachments IMG_6937 (2).JPG (204KB - 197 downloads)
Attachments IMG_6938 (2).JPG (132KB - 201 downloads)
Attachments IMG_6939 (2).JPG (139KB - 199 downloads)
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bbdakota
Posted 2021-03-05 5:48 PM (#609527 - in reply to #609520)
Subject: Re: Mechanical Brake Lights Switch


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I'd be interested in how it mounts if you get a chance to post some pictures. I also added a mechanical switch to my 56 royal when I put a dual master cylinder on but I'm not really happy with the way I mounted it. It'll be interesting to see what you came up with.
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GaryS
Posted 2021-03-05 8:44 PM (#609530 - in reply to #609520)
Subject: Re: Mechanical Brake Lights Switch



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Location: Ponder, TX		FWIW, I had a mechanical switch and adjustable mounting bracket from a '79 Dodge Aspen that I parted out. I always look for factory Mopar parts whenever making mods in my FWL, so was pleased to find that it bolted onto my '56 Plymouth.
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Old Ray
Posted 2021-03-06 8:20 AM (#609541 - in reply to #609520)
Subject: RE: Mechanical Brake Lights Switch



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Location: Invermere B.C. Canada - Rocky Mountains

Del, are you going to use a relay so that the switch only has to handle the low relay current ? 

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dels56
Posted 2021-03-06 11:32 AM (#609547 - in reply to #609520)
Subject: Re: Mechanical Brake Lights Switch


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Good day.
1) I will try to get a pic of the brake pedal mount but in the meantime, there is a lug on the left side of the mount up at steering column height. It has a 3/16 slotted hole which works for left right adjustment.
2) this was the only option I could come up with after many days of searching.
3) the switch is capable of handling the 12v on the motorcycle without a relay so it should be AOK.

Darn technology. I don't know how to edit a photo and draw on it, so the pic is an attachment

Dave F had sent me some pics of a brake pedal mount which I am using here due to the fact that I don't have one of my own to use.

Save the fail as a PDF. Let me know if you can download the file.

Del S

Edited by dels56 2021-03-06 12:42 PM




Attachments
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Attachments Switch mount bracket.pptx (146KB - 197 downloads)
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Powerflite
Posted 2021-03-06 2:56 PM (#609553 - in reply to #609547)
Subject: Re: Mechanical Brake Lights Switch



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Location: So. Cal		I usually just weld a small, simple plate with a threaded hole in it to mount the switch. Works well and is very easy to do, other than sticking your head up there to weld.



(BrakeSwitch.jpg)



Attachments
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Attachments BrakeSwitch.jpg (31KB - 208 downloads)
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dels56
Posted 2021-03-06 4:44 PM (#609562 - in reply to #609520)
Subject: Re: Mechanical Brake Lights Switch


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In the pic above from Expert 5k, you can see the tab with a hole in it to the left of his switch. One little #10 machine screw and no weld sparks to deal with. additionally I do do have welding equipment in my shop so this was my easiest route.

Del S
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56D500boy
Posted 2021-03-06 5:51 PM (#609567 - in reply to #609547)
Subject: Re: Mechanical Brake Lights Switch



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Location: Lower Mainland BC
dels56 - 2021-03-06 8:32 AM

Good day.
1) I will try to get a pic of the brake pedal mount but in the meantime, there is a lug on the left side of the mount up at steering column height. It has a 3/16 slotted hole which works for left right adjustment.
2) this was the only option I could come up with after many days of searching.
3) the switch is capable of handling the 12v on the motorcycle without a relay so it should be AOK.
Darn technology. I don't know how to edit a photo and draw on it, so the pic is an attachment
Del S


Del: I use PAINT (usually bundled with the computer when you buy a new one, at least a Desk Top running windows). It is pretty easy to use.

Here is your diagram:





(DelSsMechanicalBrakeLightSwitchMountingLocation.jpg)



Attachments
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Attachments DelSsMechanicalBrakeLightSwitchMountingLocation.jpg (27KB - 206 downloads)
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NC Adventurer
Posted 2021-03-15 4:52 PM (#609912 - in reply to #609520)
Subject: Re: Mechanical Brake Lights Switch


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Posts: 148
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Some months back there was a similar thread on the subject. Lancer Mike came up with a great adaptation of a mechanical switch that is easy, allows for future reversal to the original switch and causes no permanent changes to the vehicle. I did this conversion on my Adventurer and it was worked flawlessly. Here's a link to the thread: http://www.forwardlook.net/forums/forums/thread-view.asp?tid=42562&... Best of luck in your work!
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