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| | | | Joined: Apr 2005 Posts: 40 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2005 Posts: 40 | Driving down the road in my Panel is like living in a large oil can. Some times it's like someone is beating on the outside of a 55 gal drum with your head inside. All of the roof ribs are pretty close to each other as far as bend radius. What was or what can be put between the ribs and the roof to quiet this noise ?? I don't think the roof was fastened in any way to the ribs. What's left of my hearing thanks you.
Mike
In loving Honor of PFC Benjamin Gandalf Young 30 March 1988 - 27 May 2007 Sometime I wonder, Who you'd be today www.BENS58.COM | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | actually there was an asphalty fibre material glued to the roof metal from the factory - you don't want to shim between the roof panel and the headliner bows, you want to get some of the peel n seal folks have discussed here and stick it to the roof in sections between the bows, then if you can afford it someday, get a headliner made for the truck - what's happening is called 'drumming' and happens on all large 'un-ribbed' panels like the panel truck roofs, even the doors
Bill | | | | | Joined: Mar 2005 Posts: 2 Junior Member | | Junior Member Joined: Mar 2005 Posts: 2 | Originally posted by red58:
actually there was an asphalty fibre material glued to the roof metal from the factory - you don't want to shim between the roof panel and the headliner bows, you want to get some of the peel n seal folks have discussed here and stick it to the roof in sections between the bows, then if you can afford it someday, get a headliner made for the truck - what's happening is called 'drumming' and happens on all large 'un-ribbed' panels like the panel truck roofs, even the doors
Bill Watch out for that original " asphalt padding ". It is loaded with asbestos. | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | what's the source for that Tex? GM used asbestos where tar impregnated paper would do? brake shoes and clutch linings maybe, but vibration damping material? it's not a high temperature or friction application - even the inside firewall insulation is just fiber
Bill | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I think that this must be the same material used in the back of the cabs. It seems to be very close to roofing felt, maybe twice as thick. | | | | | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | I would try "gluing" the roof sheet metal to the ribs first with some body sealer. Kind of like how they do to the underside of the more modern car hoods, then tie it all together with the silencing material.
Scott | | | | | Joined: Sep 2004 Posts: 221 Shop Shark | | Shop Shark Joined: Sep 2004 Posts: 221 | I like Scott's idea with the seam sealer. I also took "owens corning 703" and glued it between the ribs. This is the stuff we use to control sound in recording studios. I covered the 703 pieces with a trash bag glued on with 3M spray aghesive. Then I glued the panels to the roof with construction adhesive. I plan on constructing a headliner soon to cover the whole thing up. It has made a huge difference in the volume. | | | | | Joined: Apr 2005 Posts: 40 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2005 Posts: 40 | THANKS GUYS FOR THE IDEAS. I ENDED UP USING FOAM RUBBER WITH STICKY ON ONE SIDE. I HAD SOME LEFT OVER FROM A JOB WHERE WE INSTALLED A NEW ROOF TOP UNIT FOR A COMMERCIAL JOB. IT QUIETED DOWN THE DRUM CONSIDERABLY. NOW I CAN TURN THE STEREO UP AND DRIVE THE YOUNGSTERS NUTS PLAYING OLDIES AND NOT HAVE TO WORRY WHEN THE NEXT ROOF BOOM WILL OCCUR. THANKS AGAIN.
MIKE
In loving Honor of PFC Benjamin Gandalf Young 30 March 1988 - 27 May 2007 Sometime I wonder, Who you'd be today www.BENS58.COM | | | | | Joined: Jul 2005 Posts: 2 New Guy | | New Guy Joined: Jul 2005 Posts: 2 | Originally posted by 58 CHEVY PANEL:
Driving down the road in my Panel is like living in a large oil can. Some times it's like someone is beating on the outside of a 55 gal drum with your head inside. All of the roof ribs are pretty close to each other as far as bend radius. What was or what can be put between the ribs and the roof to quiet this noise ?? I don't think the roof was fastened in any way to the ribs. What's left of my hearing thanks you.
Mike
deuter 1958 GMC Panel [http://www.stovebolt.com/gallery/hardy_paul_1958.htm]1956 GMC Pickup[/URL]
| | | | | Joined: Jul 2005 Posts: 2 New Guy | | New Guy Joined: Jul 2005 Posts: 2 | Hello,
I'm new to stovebolt and I'm trying to figure out how to start a new post...Can anyone help...deuter
deuter 1958 GMC Panel [http://www.stovebolt.com/gallery/hardy_paul_1958.htm]1956 GMC Pickup[/URL]
| | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Dueter welcome to the Stovebolt. There is a graphic 'post new topic' about one inch down from the top of this window.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
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