I have been restoring a 2363 IC F3. Looks like new now. Everything works except the horn (relay moves properly with fresh D Cell) except no sound at all. Any ideas how to adjust? Thanks!

I saw this a while back.  It may help (I hope so).

C&O Allan’s reply to Grandpachoochoo’s problem, directing him to a post that totally solved his problem is is a classic example of just how great the OGR forum and it’s members are in helping fellow members.  Jim

Connect a jumper wire to the horn relay where the horn wire connects. Touch the other end of the jumper to a good c or d cell battery. Touch the other end of the battery to the horn body. If you get sound the relay contacts need cleaned. Do this first.

https://ogrforum.com/...e-hood-beep-repaired 

Mitch

I’m about 18 months late on this post but I’m also about done restoring a 2363 and I also cannot get the horn to work with a D battery. It’s wired correctly, I cleaned the relay contacts, the relay closes as it’s supposed to, and the horn itself was tested with the D battery on the horn and touching the positive contact with the horn wire. It also worked with jumpers and a 9v battery. The battery compartment suffered corrosion from the previous owner storing it, and the entire battery holder and relay have been replaced. The battery cover door also has corrosion which touches the negative side of the D cell. Now, I used WD40 and a scotch brite pad to clean and smooth it out, but is it possible this is the problem and why the horn isn’t working? Any thoughts and help would be great. Thanks.
James