It Just Goes On and On

Dan1950 · May 31, 2023

Cleaning up the area around the swing arm before installing the newly laced rear wheel.

I found that my horn seems to be loose. Is this normal?

If I need to tighten something haw deep do I have to dig?

NPeteN · May 31, 2023

Dan1950 said:
Cleaning up the area around the swing arm before installing the newly laced rear wheel.

I found that my horn seems to be loose. Is this normal?

If I need to tighten something haw deep do I have to dig?

You have to take the whole bike apart.

Ron Hulton · May 31, 2023

A single nut holds the horn to the mounting bracket. The mounting bracket is held on with two bolts through the rear fender . Check the bracket first . If the horn is loose to the bracket you may have to loosen the bracket to get access to the horn nut .

Torontonian · May 31, 2023

Yes , access to the horn is basically a living nightmare . My newer one is mounted somewhere else , with a relay too .

concours · May 31, 2023

I have the original horn.

Tappet wrench

Tight access, but just like I work on every day. Ship in a bottle. Remove the nut, in situ, clean threads with Brake cleaner, Loctite.

Dan1950 · May 31, 2023

Ron Hulton said:
A single nut holds the horn to the mounting bracket. The mounting bracket is held on with two bolts through the rear fender . Check the bracket first . If the horn is loose to the bracket you may have to loosen the bracket to get access to the horn nut .

It appears to be loose on the bracket.

milfordite · May 31, 2023

You may have to remove the rear fender, which isn't really that hard.

Larry S · May 31, 2023

Let it vibrate fully loose and fall off the bike. Replace with anything else in any other location. Then you can post in the “What fell off your Norton today?” thread.

YING · Jun 1, 2023

concours said:
I have the original horn.

Tappet wrench
View attachment 107322

Tight access, but just like I work on every day. Ship in a bottle. Remove the nut, in situ, clean threads with Brake cleaner, Loctite.

That’s what I use.I also use an external star washer along with the loc-tote.

ILLF8ED · Jun 1, 2023

My horn fell off on a club ride two weeks ago. I just bit the bullet removed the rear wheel and fender. As above used blue Loctite when putting the bolt back in the horn. I wanted to remove the oil tank at the same time to check if the dripping was a crack in the tank, so the dismantling was worth the effort. That turned out to be just the copper drain plug seal needed attention. The original Lucas horn is quite a bit loader than the wimpy one on my 2007 Sportster….I like it.

elefantrider · Jun 1, 2023

I use Nyloc nuts on the horn bracket.

You can get to it if you remove the wheel and drop the front of the rear fender.

Dan1950 · Jun 1, 2023

concours said:
I have the original horn.

Tappet wrench
View attachment 107322

Tight access, but just like I work on every day. Ship in a bottle. Remove the nut, in situ, clean threads with Brake cleaner, Loctite.

Since the rear wheel and chain are off, removing the fender will not be difficult.

I'm a big fan of Loctite backed up by star washers.

CanukNortonNut · Jun 1, 2023

or a Nord-lock washer.

https://www.grainger.ca/en/category/Washers/Fasteners/c/2035?filterType=brand&filterName=Brand&filterValue=NORD-LOCK&q=%3Ascore%3Abrand%3ANORD-LOCK&nlsgt=true&uq=Nord-Lock+Washers&filterSize=1&ntype=1&searchBar=true&nls=NLSAA_4-1&code=90.0&filterTemplate=Visual

I use these on all my engine plate bolts on the crankcase halves.

CanukNortonNut · Jun 1, 2023

Larry S said:
Let it vibrate fully loose and fall off the bike. Replace with anything else in any other location. Then you can post in the “What fell off your Norton today?” thread.

I don't agree. But we can Agree to disagree. They are heavy and hard to get at, but if you dot all your eyes and cross all your tees, in your mount set up, they do sound nice. And they wouldn't be a Commando if you didn't start your build with the horn.
~~"Then you can post in the “What fell off your Norton today?”~~
Then you can post it in:
https://www.accessnorton.com/NortonCommando/so-what-to-do-with-a-duff-commando-horn.37053/

EstuaryBoy · Jun 1, 2023

CanukNortonNut said:
..........if you didn't start your build with the horn.
[/QUOT

It Just Goes On and On

Dan1950

1974 MK II Roadster

NPeteN

Ron Hulton

Torontonian

concours

Dan1950

1974 MK II Roadster

milfordite

Larry S

YING

Pittsboro,NC

ILLF8ED

elefantrider

Dan1950

1974 MK II Roadster

CanukNortonNut

CanukNortonNut

EstuaryBoy

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