Hi Simon,
Our '72 GT used to have the most outrageous resonance at 2600-2950 or
so. Getting the OD into operation was a real blessing. Still, it was too
loud and it did still buzz.
Bought the rubber blocks that fit in the rear fenders. Some help, but
not much.
Put in new plastic under-dash panels. Helped more than one would think.
Put pieces of carpet on all the floor under the spare tire. Helped.
Put carpet scraps in the bottoms of the rear fenders. Helped too.
Put carpet underlayment under the carpets. Better for heat retention
than noise.
Replaced the transmission mounts----Man! What an incredible difference!
Bob
On Mon, 24 Nov 1997 10:15:31 -0600 Simon Bosworth
<simon@hpi50.dsddhc.com> writes:
>Hello all,
>this weekend I finally had to do something about the muffler on my 74
>BGT. Every time I hit about 2500 RPM a God-awful resonance would
>start
>up that almost deafened me. On Saturday I decided to brave the cold
>garage floor and have at look at what was going on. I discovered that
>the tail pipe was loose where it exited the forward muffler. I
>decided
>to try and weld it up rather than wait to get a new muffler. I
>dragged
>out my trusty oxy-acetylene torch and started to weld and...look ma,
>no
>gas :( Hastily jump in Wife's car and off to the welding supply
>place;
>get there with about 15 minutes to spare. Back home again and under
>the
>car. It is great fun lying on your back on an ice cold floor waving a
>torch around and hoping you don't burn through the fuel line or
>something else inconvenient like that, (my own body parts for
>instance).
>Anyway I finally mangaged to get the tail pipe reattached to the
>muffler
>with the world's ugliest welds. It seems to do the trick though. Now
>the car is just normally loud. Have to get some carpets and sound
>deadening one of these days.
>
>Cheers,
>Simon
>
>--
>Simon Bosworth
>simon@hpi50.dsddhc.com
>
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