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For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Keeping the noise down (sound insulation (without complete teardown))
Re: Keeping the noise down [message #365630 is a reply to message #365623] Thu, 22 July 2021 22:09 Go to previous messageGo to previous message
Carl S. is currently offline  Carl S.   United States
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
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Senior Member

I lined my Onan compartment with some material I got from Jim Bounds. It is Mylar faced with two layers of foam with a sound barrier between them. It is glued to the inside of the compartment and screwed in a kind of quilt pattern with self tappers and fender washers.

It did improve the sound level inside the coach.


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
 
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