On The Road Posted October 21, 2008 Share Posted October 21, 2008 My Mack H67 has 2 Grover Products Company Air Horns, they are out of Los Angeles and that is about all the markings on the horns. About a 22 inch horn with a 6 inch opening, mounted on top of the cab. They are geting air but no sound from the horns. I took one off and took it apart and found a spring from the center of the back plate that rest on the diaphragm to be out of place, I could tell by the rust mark left on the diaphragm. Also on the other side of the diaphragm the horn barrel was screwed down against the diaphragm and left a circle mark. I repositioned the spring and backed out the barral so it was not touching the diapharm, connected it to a air hose and still no sound. I don't know how to work on air horns so any help would be most appricated. These horns have not worked in some time. Thanks, Double Diamond Quote Link to comment Share on other sites More sharing options...
other dog Posted October 24, 2008 Share Posted October 24, 2008 My Mack H67 has 2 Grover Products Company Air Horns, they are out of Los Angeles and that is about all the markings on the horns. About a 22 inch horn with a 6 inch opening, mounted on top of the cab. They are geting air but no sound from the horns. I took one off and took it apart and found a spring from the center of the back plate that rest on the diaphragm to be out of place, I could tell by the rust mark left on the diaphragm. Also on the other side of the diaphragm the horn barrel was screwed down against the diaphragm and left a circle mark. I repositioned the spring and backed out the barral so it was not touching the diapharm, connected it to a air hose and still no sound. I don't know how to work on air horns so any help would be most appricated. These horns have not worked in some time. Thanks, Double Diamond about all I know is they have a lock nut and set screw on them to adjust the tone, otherwise if the diaphram is good and they don't have dirt dauber nests in them, I have no idea either.Glad I could help Quote Producer of poorly photo-chopped pictures since 1999. Link to comment Share on other sites More sharing options...
Mike Posted November 15, 2008 Share Posted November 15, 2008 Double D..... The Grover Products air horn kit is $28.00 + Uncle Sam. Call your local Dealer, he should be able to send you to a Grover Products supplier in your home town or city. Or you can go on line and call Grover. They can help you find a local business that will send you in the right direction. Regards mike Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.