Model A Horn

[Scott S]

I a '30 roadster and when I push the horn button I get a very weak sounding noise, not the typical "ahooga." I am wondering whether there is some sort of lubrication or maintenance for the moving parts. It just sounds like it's stuck. It worked fine last year.

[MCHinson]

You need to remove the screw that hold the back cover on the horn. Remove the back cover, then you can clean the commutator by holding a piece of sandpaper against the commutator while the horn motor is revolving. Apply a few drops of light oil on each end of the armature shaft. You need to make sure you have a good electrical connection. You can then adjust the adjustment screw to get the proper tone.

[Scott S]

Thanks. I suspected it need something like that but did not want to just start poking around.