(posted by DC, 1 October 2017)
"Do any members of this group do horn restoration or have information on how I can do it myself for my three chimer?"
(comments)
MF: "Take it apart, clean everything, let all parts dry, use a good amount of anti-seize compound on the bolts and put it back together. Small ridge on the nozzle rubber ring goes up, spring around the nozzle ring. Order of large parts is thin gasket, diaphragm, thick gasket, second diaphragm back cap if it uses two diaphragms. If it only uses one diaphragm in each bell then put the back cap on after the thick gasket. Works fine either way, and horns came from the factory both ways."