Gonna blow my horn- maybe
 

I have a question for the experts, I'm in the process of rebuilding my horn for my 31 roadster.I'm using LES ANDREWS hand book as my guide. 5 mfg's he states made the horns . according to that I have a mixed up horn and would like you guys to conferm that. my ARMATURE SHAFT measures 5/16 in. which makes it a AMES or G. M. I. however the motor frame measures 3/4 in. making it a SPARTEN or E. A. the 5th mfg is STEWART WARNER . SO how can I tell for sure?? there are no marks on the horn body at all. is it possible the parts were interchangeable at the time?any help is as always greatly appreciated. THE HOOCH

Re: Gonna blow my horn- maybe
 

Need some pictures and the horn experts can tell.
Just be careful of the nut holding the wavy washer, because some horns use a LEFT hand thread.

Re: Gonna blow my horn- maybe
 

I believe the GMI will have vertically mounted brushes. Great sounding horn!

http://www.fordbarn.com/forum/pictur...pictureid=2236

Re: Gonna blow my horn- maybe
 

yea if they are restored correctly and the horn rod is workign exceptionally well with virtually no resistance it should sound great. if its got sticky oil , adjusted too tight, dirty brushes, or horn rod/wiring is iffy then it sounds like a sick cow...

Re: Gonna blow my horn- maybe
 

Check this thread out. It has lots of good info:
http://www.fordbarn.com/forum/showth...dentification"

Re: Gonna blow my horn- maybe
 

The Stewart Warner horn motor has Left hand threads, the other four have s Right hand threads. Be careful, make sure you know what motor you have.
The Bell of a S-W horn is lightly stamped Stewart Warner in script.