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    Guest Message by DevFuse
     

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    Air Horn Problem



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    2 replies to this topic

    #1 OFFLINE   Double Diamond

    Double Diamond

      Gear Jammer

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    • 19 posts
    • Make:Mack H67
    • Year:1959

    Posted 21 October 2008 - 11:12 AM

    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

    #2 OFFLINE   other dog

    other dog

      BMT Certified Know-It-All!

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    • 8,440 posts
    • Location:Gladys,Va.
    • Make:Mack
    • Model:B-53s
    • Year:1965

    Posted 24 October 2008 - 03:01 PM

    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 :rolleyes:
    "I'm off like a herd of turtles"- Old Bill

    #3 OFFLINE   Mike

    Mike

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    • 3,466 posts
    • Location:Goodlettsville, TN
    • Make:Mack
    • Model:B61T 38914
    • Year:1962

    Posted 14 November 2008 - 10:42 PM

    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 :mack1:




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