Logo
FULL SITE MENU

72 Johnson 85 hp hydro electric shift switch

F

Fish-N-Fool

Member
I need this electric switch that runs the lower unit that is inside the control box for my 85 HP Johnson. Does anyone know where to get it?

KIMG0192.jpg
 
racerone said:
Listed on this site for a mere $310.----Have you tested and confirmed it is bad ?--Your location ?
Click to expand...

Yes it has power to the neutral wire all the time, so it will not go into forward gear when it is hooked up. I did find one for 190 bucks, but for that price I will figure out a toggle switch setup. Or I may open this one up and see if I can fix it. I'm in North idaho
 
Last edited:
********************

(Toggle Shift Switch Setup For The Hydro Electric Shift Unit)
(J. Reeves)

NOTE (Disclaimer) - The following toggle setup will suffice BUT it is extremely dangerous. Should you use it, you are agreeing to use it at your own risk with myself disavowing any responsibility for its design or use.

Due to the unavailability of the "Push Button" (Evinrude) or "Toggle Type" (Johnson) shift switch that is required for the "Hydro Electric Shift" type lower units that existed between 1968 and 1972, many boaters have asked how they could rig up a toggle switch to perform this shifting function. There may be much better solutions but the following is what I and another member have come up with.

One must keep in mind that wiring a toggle switch in such a manner allows one to accidently shift from forward to reverse at full throttle. This could and probably has resulted in injuries to boaters, not to mention the mechanical damage. Should this or any other problems arise/occur, I, nor any other member are in no way to be held responsible for the toggle switch to shift switch replacement mentioned here.

For the above reason, I strongly suggest that the toggle switch have a hinged hard case cover installed over it so that the toggle can never be thrown/toggled accidentally.

Now, with a Single Pole Double Throw toggle switch installed so the "Green" wire connection is facing up or away from you, make the following connections to the terminals on the back of the toggle switch. A diagram exists at the bottom of this explanation.

......O <--- Green Wire

......O <--- 12 volt Supply

......O <--- Blue Wire

Now, between the Green wire and Blue wire terminal on the toggle switch, connect a diode capable of handling 12 volts (available at Radio Shack etc). Be sure to install the diode so that the voltage will travel from the Blue wire connection to the Green wire connection only...... and not vice versa!

Now, if you have installed the switch as above, with the toggle pulled all the way back (towards yourself), contact will be made between the 12v supply and the Green connection. This puts the unit in Neutral. The diode prevents any voltage from gaining access to the Blue connection.

Pushing the toggle lever to the middle position results in no voltage being supplied to either wire. This results in the spring loaded clutch shifter dog in the lower unit throwing the unit into forward gear.

Pushing the toggle switch lever all the way to the front position will have the center 12 volt supply connected to the Blue wire connection, and due to the diode, that 12 volt supply will also be supplied to the Green wire. This results in having the unit in reverse gear.

The Double Pole Double Throw toggle designed by another member is a easier setup to wire (diagram below). It simply depends on what type toggle switch you have.

HydroShiftSwitch-a_zpsa964c2e4.jpg


********************
 
joereeves said:
********************


For the above reason, I strongly suggest that the toggle switch have a hinged hard case cover installed over it so that the toggle can never be thrown/toggled accidentally.

********************
Click to expand...

For this reason if I do not use the stock switch, I will use a universal headlight pull switch. As when running at speed it cant be bumped into reverse and it's easy to wire.
 
Fish-N-Fool said:
For this reason if I do not use the stock switch, I will use a universal headlight pull switch. As when running at speed it cant be bumped into reverse and it's easy to wire.
Click to expand...

Aw'c'om.... How do you avoid bumping into that light switch & knocking it in a notch? :)
 
Back
Top