Miata Mailing List: December 1995, Message #27
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   From: keith@dgvis.er.usgs.GOV (Buzzy)
Subject: Re: A grilling experience
   Date: Fri, 1 Dec 1995 10:50:45 -0500

Richard M. Sorrentino writes:
> 
> > First, like someone else on the net, I get an awful
> > buzzing noise from my right door when I crank the
> > speaker up a bit.

Mike Simmons replies: 
> It may sound like something rattling around in there, but it's probably
> some part of the door mechanism vibrating in response to certain
> frequencies coming off the back side of the speaker.  You'll probably
> never find what it is...

as i've recently found out, if you have the buzz *and* manual windows, the
first place to check is the window crank mechanism. the easiest way to check
this is when you have to door panel off and the music cranked, slightly
loosen up the bolts that hold the crank mechanism to the door frame and reach
in and tightly hold the mechanism with one hand. if it stops buzzing, BINGO!

i wish a fix were as simple, but the problem is that there is a coil spring
inside the mechanism that is (i believe) for lessening the effort required to
roll the window down. this spring touches the plastic cover for the crank and
buzzes against it due to the door vibrations from the speaker. my fix was to
tear the crank mechanism apart and remove the spring. this was a major pain
of a job and i don't recommend it unless you are a music fanatic like me who
can't stand buzzes and rattles interfering with the music.

(and you wondered where 'Buzzy' came from :)

Keith
'93 Mariner Blue
Member MCA, MSCW
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                                 Keith Richmond
                        US Geological Survey, Reston, VA
                             keith@dgvis.er.usgs.GOV
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