Horn button wiring?

[EverettB]

[70bus]

Some discussions of alternates below. And of course we all wish Neil Pickett made more!


https://www.thesamba.com/vw/forum/viewtopic.php?p=7248203&highlight=#7248203
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Craig K
70 Neunsitzer
65 Pritschenwagen
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Raoul the 65 singlecab

Karl the 70 nine-seater

[tasb]

I don’t know the size but I do know that the part # is N130751. Wolfsburg West stocks them.

My original low mileage 1957 Kombi had a steel wire sheath that the brown ground wire runs through from the steering box to just short of the horn contacts. That would offer a measure of protection. I’ve never seen it on another Bus but can’t see why one couldn’t added to a later Bus.
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Roads Scholar
1957 Kombi low mileage 36 hp governor equipped M 178 Slow Drag Winner 2014, 2015, 2018

1965 hardtop Deluxe Microbus owned since 1990 M 620 factory 12 v 1500cc

1961 (October)Single Cab- Road Trip Workhorse

Member# 2059

[Stocknazi]

Anyone know the horn button wire grub screw size?
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[oodeftone]

Here's another random horn wire question. Who repops the little metal wire holder tab that bolts to the bottom of the steering box and holds the horn wire in place? I saw a picture on here recently were someone had a nice shiny new one installed.

[oodeftone]

Thanks guys!

[EverettB]

[BarryL]

My guess is it might be as light as #18 or it might be #16. It could be thinner than both but what is important is it's a fine fine multi strand with a soldered ferrule to screw down with the horn button setscrew. It must be able to wind and unwind almost infinitely as you steer back and forth.

On the wiring diagram somewhere on this site is the metric wire size of it printed next to the wire.

[oodeftone]

[grey60]

Thanks, y'all. I'd been looking at it wrong -- thinking the aluminum tabs were the back side of plastic tabs, like you see on small electronics, e.g., for battery access panels.

Which they are not

And what I thought was a tab visible under the top edge of the button is actually the ONE aluminum tab now holding everything together -- the other two were already open/bent-back
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1960 grey panel

[BarryL]

[novetti]

That is a risky job to do but with some precaution you might not damage any of the parts.

The metal (Al rim) has 3 tabs folded securing the rim to the outer plastic rim.
Get the thinnest screwdriver you have at your toolbox and carefully try to unbent the Al tab. Pressing the centre button at the same time might help.

After you finished cleaning etc, put it back together folding the tabs in place.

I just done that last week because the centre metal circle was too dirty and with some corrosion where it makes contact with the spring which grounds into the Steering Wheel hub.

[grey60]

A few folks mention taking the button completely apart in this thread… However? Nothing provided in the way of a description (or pics) as to how that actually gets done.

Mine is the early 60s commercial bus variety which sits at the end of long ground wire coming up through the steering column… so --

Once you remove the button from the steering wheel and back-out the tiny grub screw that holds the wire in the back of the button, then what?

How do you get the plastic pieces apart so you can clean-up in there?

I see a single small slot in the lower lip of the chrome-ish trim ring between the moving 'button' and the upward-facing part of the base… and seems like there are some locking tabs holding the spring/base assembly together…

How to open it up without breaking (theoretically) 50+ year-old plastic?
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1960 grey panel

[Major Woody]

[johny__utah]

Put a new 12volt German horn in last week. Tapped into the fuse box were there is spark only when key is turned. Left side if faceing the horn. Right side ground wire up the steering colum to the small screw behing the horn buttom. I had to remove the horn button spring and round flat plate. Tap the center flap a bit for better ground contact.. Horn beeps with a light touch sounds great and super loud. $13 bucks..

[Kelly]

is the old wire still in the steeringbox?

either way, you just run a wire through the steeringbox up to the steeringwheel. If the old wire is still in the shaft, splice the new wire to the old and pull the new wire up through the shaft, then cut the splice off. Another way is to use .32 safety wire (or similar) and run it down the shaft and attach the wire to the wire and pull it up through the shaft. No need to take the box apart.

easy money.
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[Major Woody]

Pulled the steering box out of the 67 today to clean it and noticed that the insulation is cracked on the horn wire where it exits the box. I'd like to replace that wire and I don't have access to my Bentley as it is in the bus, and the bus is up on a lift at my friend's house. I haven't taken the box apart and I don't want to only has 58k on it and is nice and tight--just clean, paint, adjust, re-lube and replace the wire. What is involved in replacing the horn wire?

Thanks all!

[6D2]

I took the horn apart again.. made sure everything was tight and dry... still all I get is the cluck when I hit the button. I know how the horn wires up... but how does it make the noise? what part causes the noise itself? Im sure it is but is it possible for the hore to just be plan old burned up? thanks again
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Chris
The SBS #62

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[6D2]

ok pulled the horn tonight and took it apart... everything is clean and I think I put it back together correctly. I hear the contacts close when I push the hornbutton but it just makes a sound like I am dropping marbels in a tin can... maybe I reversed something when I took it apart? I saw an adjustment screw on the back that touches a bent peice of metal coming off the 12v side. any help would be great thanks... is there a tutorial on rebuilding or fixing a horn?
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The SBS #62

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[davebuckholts]

I've got two 6V horns wired to 12V............you hear me now????!!!!!
I solder the tip of the wire where the grub screw connection is to give the screw something a little more solid to grab.
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