Restoring a CBX Horn

Samelak · Post by **Samelak** » Sun Apr 25, 2010 6:53 pm

Has anyone ever pulled a CBX horn completely apart for restoration? I would like to, but I don't want to destroy it. They look to be riveted in the middle. Any info on the process is appreciated.

alimey4u2 · Post by **alimey4u2** » Sun Apr 25, 2010 7:10 pm

OK... On the inside you have a coil & a contact. With power on, the coil drives a diaphragm forward which breaks the contact. The diaphragm (mounted to a laminated steel core) springs back to make the contact. The coil is then energised which drives the diaphragm forward again & it continues on & on until the neighbors call the police...

No repairable parts within...Unless you are very skilled or lucky...

Dave Hansen · Post by **Dave Hansen** » Sun Apr 25, 2010 7:59 pm

When you get it apart there is a set of contacts that can be cleaned like a set of points. I used a points file. That brought it back to life. If that don't work its probably ready for the trash.

NobleHops · Post by **NobleHops** » Mon Apr 26, 2010 8:09 am

Dave Hansen wrote:When you get it apart there is a set of contacts that can be cleaned like a set of points. I used a points file. That brought it back to life. If that don't work its probably ready for the trash.

Is this as simple as drilling the rivet to get it apart then? Mine's feeble too...

N.

Dave Hansen · Post by **Dave Hansen** » Mon Apr 26, 2010 6:06 pm

Its been awhile but I think I just pulled the six small phillips head screws around the outside of the front. Don't think I did anything with the rivet in the back.