Horn button and turn signal thingy

[tlcnoobie]

This is an Oct 71, model year 1972, fj 40.
Popped the steering wheel cover- which has Toyota printed on it- and cant find any pieces for the horn to work. No springs, contacts, etc. Also, there doesn't seem to be a plate for the turn signal to catch the pins on the back of the steering wheel hub so that they will cancel after a turn.
I checked my FSM and the Haynes, but they show a breakdown for later model fj's with the ignition switch on the column. This one has the ignition switch in the dash.
SOR site also not very helpful, and doesn't show how the horn or turn signals are supposed to work.
It's possible I have some morphodite rig instead of standard Toyota, despite the center button.
Anybody know of a link or site which might show the pieces I need?
Thanks.

 

[IDave]

This is how my 71 lays out and works, same for earlier years:

 

[tlcnoobie]

Dave- thanks, is that a SOR picture were looking at?

 

[IDave]

Yes sir, it was from SOR.

The cylinder on a spring is the hard thing to find. I finally got one out of a '72 parts vehicle I have access to.

 

[tlcnoobie]

I couldn't find that diagram in SOR site but found an almost identical depiction in Man-a-fre- catalogue.
I can't determine how the horn is supposed to work. The center button has no discernible play in order to press it, and there are no horn buttons on the steering wheel arms. Item 3, above, which seems to grab the center button, 1. is quite rusty and so may be masking the action. Do you press the center button for horn action? Should ther be wires running up the column somehow?
Thanks.

 

[65swb45]

The pin on the end of the spring runs against a steel ring at the head of the steering column. The rubber behind the steel ring insulates it from the column tube itself. A wire connects to the steel ring and runs down the column approximately 18' where it comes out of the side of the column.

The clip that holds the horn button is supposed to 'float' above the plate that has the spring on it. When you push on the button and the clip hits the plate, it completes the circuit, activating the horn.

Hth

 

[tlcnoobie]

Mark-
Perfect explanation and just what I needed. We'll take it all apart and see what we can find.

 

[Coolerman]

I just reconditioned my 1971 steering box and column including the horn. See my web site for a lot of closeup pics and a complete description oh how the horns work from the button to the horn.
http://tinyurl.com/5w96j There is also a schematic on the page.

 

[tlcnoobie]

Wow, coolerman- talk about the Mother Lode!! It's great to be able to blow up all the pics, too. Many thanks for your contribution to the forum: no IIRC, no guessing, no "I think..." just good solid info.

 

[65swb45]

Wow, coolerman- talk about the Mother Lode!! It's great to be able to blow up all the pics, too. Many thanks for your contribution to the forum: no IIRC, no guessing, no "I think..." just good solid info.

Agreed. I will paste this into my FAQ sticky and refer people to it. Great job coolerman!