[FC] Sound deadening material/modifications for quietness...

[lonzovair at aol.com]

George,
Years ago there was a write up in the Corvanantics newsletter about a replacement engine mount rubber. It required a longer bolt. It was a "cut down" cab mount cushion for a 70's-80s C10. It was recommended for the powerglide equipt FCs, since they tend to "drum" a bit more than the manual shifters do....
I've never done the modification... and I'd have to figure out how far back the newsletter was (I want to say 1980s)... but if needed I can try to go through my stack and see if I can dig up the specifics... drop me a private note if anyone is interested.





-----Original Message-----
From: George <gandbkoen at suddenlink.net>
To: corvanatics at corvair.org
Sent: Thu, Jan 21, 2010 9:45 am
Subject: [FC] Sound deadening material.


The real criteria on sound deadening material is Weight.  Mass. The heavier 
he better. Lead would be good, but impractical.  Heavy carpeting, Heavy 
ubber foam, The heavier the better.
ust remembered, I talked with another Corvair enthusiast a couple years ago 
t a convention, who owned a Decibel meter and had done a lot of in the 
ehicle sound measuring.  He told me the best thig he did to lower the 
nside the vehicle engine sound was the remove the rear engine motor mount.
He supported the rear of the engine with a floor jack. and the sound dropped 
ramatically.  This tells me that the better (Softer?) mount you have the 
etter sound deadening.
George Koenig 
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