Turn Signal Wiring

Unknown
Unknown
edited November -1 in HUDSON
I need help. I wanted to remove the aftermarket turn signal switch on my 1949 Super Six & install a Hudson switch that would self cancel.

I took a switch off of parts car (1950 Pacemaker) , it has only 3 wires.

The after market one I am removing has 8 ( 7 were hooked up ) .

I do not have a wiring diagram for the 3 wire system. I searched threads on forum & found 7 wire information, but not 3 wire.

Problem I see is that if wired into this 3 wire switch , the brake will back feed to the non-activated front light.

Can someone email or post a wire diagaim for the 3 wire switch set up? Or explain what I am missing? I have a Service Manual & it does not list it in the main electrical diagram .

Thanks, Kerry Patchett , IL

Comments

  • hudsontech
    hudsontech Senior Contributor
    I have a wiring schematic for 1948-1949 Hudson directional signals. It's rather small, being from a Motor's manual, so I have trouble reading it, but then my eyesight isn't as good as it was 40 years ago. :D



    I can send you a copy of it - drop me an email at NEChudsontech@hetclub.org (drop the NEC)



    Hudsonly,

    Alex Burr

    HudsonTech

    Memphis, TN
  • Unknown
    Unknown
    Thank You,

    I will email you for it.

    Kerry P
  • Jon B
    Jon B Administrator
    If your car has a brake / stoplight lamp, and a turnsignal lamp, on each side, you can use the 3-wire switch. If the car has only one lampon each side (brake / stoplight / turnsignal) then you must use the 6-wire Hudson switch. I think it's 6-wire; maybe 7 wire).



    I believe you also need some sort of pin that fits into the underside of the steering wheel hub, which engages the self-canceller on the turnsignal switch. But you can probably improvise with some sort of pin, if you didn't salvage the right one from the parts car.
  • Unknown
    Unknown
    Thanks Jon, I will see if I can add rear extra lights.

    I think that may be my best solution.

    Kerry P
  • Walt-LA
    Walt-LA Senior Contributor
    Kerry,



    I don't know the '49 Super-Sixes, but the Commodores (and later the '51 Hornet) had tail light housings, which could take two bulbs, one of which was dedicated to the turn signals. For this reason, the three wire switch worked fine- as there was no brake involvement. If this is the case with the Super-Six, and I think it is, you should not have any trouble changing over. The later six wire switch was intended for use with one dual element bulb in the rear, and there was a wire from the turn signal switch (red on my switch) which was used to over-ride the brake light signal. The six wire system also had separate contacts for the front and rear turn signal lights, and was wired through a junction block to make it easier. On my set-up orange and green wires from the switch are for the left side, yellow and brown for the right. The remaining wire (blue) connects to the flasher unit, which is powered from the ign switch in the "on" position. There is also a direct wire from the flasher to a tell-tale light on the dash. The red wire was not hooked up.



    No one has mentioned that the jacket tube has to be cut out at the bottom in order for the two pins in the steering wheel to contact the pawls in the switch box which cancel the signal after the turn. The Jacket tube bearing, which supports the steering shaft in the tube, also needs to be moved down a bit, to allow for the opening cut in the tube. Believe we used 6d nails, or there abouts for the pins in the steering wheel. Sharpened a bit, they were tapped into the holes provided in the wheel hub after heads were cut off.



    Don't have a digital camera, but if you send an email address by PM, I'll try to scan the tube set-up. Usually works. Have dimensions somewhere.



    The '51 Hudson Mechanical Procedure Manual also has a section on installing turn signals. Walt-LA
  • Jon B
    Jon B Administrator
    Actually, I mounted a 6-wire t.s. switch on my 1937 Terraplane about 30 years ago and didn't use the cancelling pins at all (since the Terraplane never had a cancelling type turnsignal, ergo no provision for pins in the steering wheel hub).



    I cut a hole in the side of the steering column (jacket) as Walt suggests, so the cancelling levers on the turnsignal switch could penetrate the column, which is no big deal. But instead of pins, I used a small hose clamp around the steering shaft. The screw portion of the clamp acts as a cancelling cam; each time it comes around it hits the cancelling levers on the switch. It's easily adjusted, either "up" or "down" the shaft, or around the shaft. The rubber bearing Walt refers to, didn't seem to interfere with it. And it's worked flawlessly for three decades.



    Of course, the 6-wire switch (providing dual function for the brake light filament of the bulb) is just dandy for older Hudsons that only have a single dual-filiamet bulb in back. No need to jam extra sockets in to the taillight shell, or stick additional lights on the back of the car. In my case, the optional fender-mounted parking lights at front, serve as the front signals.
  • Unknown
    Unknown
    Walt,

    Thanks for your help. Here is my email address : kerry.patchett@comcast.net
  • Unknown
    Unknown
    OK then why in my 49 6 does my turn signal have the self cancelling in it ??
  • Walt-LA
    Walt-LA Senior Contributor
    stffy64 wrote:
    OK then why in my 49 6 does my turn signal have the self cancelling in it ??





    Got me! What trips it? Walt-LA
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