Horn not working? Heres a possible solution.

All-
My horn worked intermittently, then quit altogether. Today I took some time and started troubleshooting. Removed the horn, connected it directly to the batteries, it worked fine.

Checked to see if I was getting a good ground at the horn via the wiring harness and I wasn't.

Going on advice from others, I disassembled the horn and pulled the steering wheel.







Needless to say, the metal ring was nasty. I cleaned it up and checked continuity all the way down and it worked. The button worked fine and everything was in order.

But still no "beep beep".

At this point, I called @G744 as he is an excellent source of information.

Unfortunately, we couldn't figure out what was going on. The dang thing wasn't getting ground, and we couldn't figure out why. I could hook the nut in the steering column directly to ground and it worked. Disconnect it, no love.

I called another buddy who is restoring 3 M715s and he said it was weird I was having this issue, as he just repaired one.

It turns out the steering column is grounded to the frame via the connection at the steering box. On the rag joint is a metal bushing(?) Plate(?) Weird bolt that has metal that connects the two shafts across the rag joint that had broken.







I ran a jumper wire across them and voila... *beep beep*.



This is a temporary fix until I get the correct piece to properly repair it.

So..... before you disassemble your horn, check that rag joint.

Well, the jumper wire lasted about 3 miles and I couldn't find the part I needed, but I remembered I had some brass data tags that a buddy had given me, so....





She goes beep beep again!

It's a Jeep. Like I previously said, they had their own ideas...

G744

I have a 1925 dodge with a small external accessory drive shaft connected to an external distributor via a rag joint exactly like this. this little drive shaft also runs the water pump. Kind of a low tech solution but the rag joint does the job of a universal joint pretty well and can be repaired with a piece of a worn out tire. You made a good fix for the problem.

tommys2patrick said:

I have a 1925 dodge with a small external accessory drive shaft connected to an external distributor via a rag joint exactly like this. this little drive shaft also runs the water pump. Kind of a low tech solution but the rag joint does the job of a universal joint pretty well and can be repaired with a piece of a worn out tire. You made a good fix for the problem.

Click to expand...

Thanks bud!