FWIW, I had this mod done to my BJ8. It made a noticable difference.
tom
> [Original Message]
> From: <TRICARB@aol.com>
> To: <38derby@suscom-maine.net>
> Cc: <healeys@autox.team.net>
> Date: 9/14/2007 8:52:00 PM
> Subject: Re: [Healeys] Scuttle Shake
>
> Jon,
> I had the pleasure of discussing this phenomenon at length with
Geoff
> Healey.
> He says that the vibration frequency of the box frame and the interior
body
> panels are not the same. They come together for a harmonic frequency at
> about 55 MPH.
> Jensen spot welded the interior body to the frame, thus it is not
a
> solid structure with the frame.
> The phenomenon gets worst in the later Healeys as Jensen increased
the
> spacing of the spot welds to save costs.
> The solution, that I have found is to weld 1/2" x 1/2" angle iron on
the
> inside of the transmission opening extending the angle iron down and
welded
> onto the box frame.
> This ties the inner body to the frame making it one vibration
entity.
> I have attached a photo of the installation outlining the angle iron
in
> red.
> Bill Bolton
>
>
>
http://www.aol.com
>
> [demime 1.01d removed an attachment of type image/jpeg which had a name
of healey & shroud 003.jpg]
> _______________________________________________
> tomfelts@earthlink.net
>
> Healeys@autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
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