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[GMCnet] Road Noise [message #176271] Tue, 10 July 2012 22:15 Go to next message
Fin Beven is currently offline  Fin Beven   United States
Messages: 101
Registered: September 2005
Karma: 0
Senior Member
Somehow this question must have been asked-and-answered 1000 times, but I'm just wondering if there are any new thoughts.

The "road noise' in our cockpit is sufficiently loud that it's hard to carry on a conversation between driver and co-pilot, a cell-phone conversation (hands-free, of course, in CA), or to listen to the stereo at reasonable levels.

I have relatively good insulation under my engine hatch, and the entire floor of the cockpit, stairs, and the rest of the coach are all covered with good quality carpet.

Mostly, it seems to be wind-noise at the windows.

The two easy improvements I am considering are:

1. Replace all of the "felt" around the "slider" windows in the cockpit.

2. Replace the two large windows in the galley area with the new style windows. My logic here is that the new windows have a smaller opening section, thus conceivable letting in less road noise.

And yes, the Bose "noise canceling" headphones do work. The new model even has a microphone that will work with an I-Phone, but would not be legal for the driver to use. If you haven't tried them, they are amazing.

Any thought or suggestions would be appreciated.

Fin Beven
1976 ex-Edgemont
Pasadena, CA
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Re: [GMCnet] Road Noise [message #176277 is a reply to message #176271] Tue, 10 July 2012 22:50 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
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Fin, if you think it is wind noise, I think you are on the right track. In our's it was the two mufflers under the floor. Moved to rear and we can talk in normal tone now.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: [GMCnet] Road Noise [message #176335 is a reply to message #176271] Wed, 11 July 2012 12:11 Go to previous messageGo to next message
Steven Ferguson is currently offline  Steven Ferguson   United States
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Registered: May 2006
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Senior Member
Fin,
I just finished installing heat/sound deadening material in my '55 Chevy
project. I used the extreme Dynomat. I had been worried that it would
cause fitment issues with seats, carpeting etc but it didn't. Very easy to
work with and I haven't met a hot rodder yet that doesn't swear by the
stuff. It likes a very clean surface.

On Tue, Jul 10, 2012 at 8:15 PM, Fin Beven <FinBeven@msn.com> wrote:

> Somehow this question must have been asked-and-answered 1000 times, but
> I'm just wondering if there are any new thoughts.
>
> The "road noise' in our cockpit is sufficiently loud that it's hard to
> carry on a conversation between driver and co-pilot, a cell-phone
> conversation (hands-free, of course, in CA), or to listen to the stereo at
> reasonable levels.
>
> I have relatively good insulation under my engine hatch, and the entire
> floor of the cockpit, stairs, and the rest of the coach are all covered
> with good quality carpet.
>
> Mostly, it seems to be wind-noise at the windows.
>
> The two easy improvements I am considering are:
>
> 1. Replace all of the "felt" around the "slider" windows in the
> cockpit.
>
> 2. Replace the two large windows in the galley area with the new
> style windows. My logic here is that the new windows have a smaller
> opening section, thus conceivable letting in less road noise.
>
> And yes, the Bose "noise canceling" headphones do work. The new model
> even has a microphone that will work with an I-Phone, but would not be
> legal for the driver to use. If you haven't tried them, they are amazing.
>
> Any thought or suggestions would be appreciated.
>
> Fin Beven
> 1976 ex-Edgemont
> Pasadena, CA
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
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Re: [GMCnet] Road Noise [message #176336 is a reply to message #176335] Wed, 11 July 2012 12:16 Go to previous messageGo to next message
Fin Beven is currently offline  Fin Beven   United States
Messages: 101
Registered: September 2005
Karma: 0
Senior Member
Steve .... thanks. The whole inside of my Vanagon is lined with Dynomat.
----- Original Message -----
From: Steven Ferguson<mailto:botiemad11@gmail.com>
To: gmclist@temp.gmcnet.org<mailto:gmclist@temp.gmcnet.org>
Sent: Wednesday, July 11, 2012 10:11 AM
Subject: Re: [GMCnet] Road Noise


Fin,
I just finished installing heat/sound deadening material in my '55 Chevy
project. I used the extreme Dynomat. I had been worried that it would
cause fitment issues with seats, carpeting etc but it didn't. Very easy to
work with and I haven't met a hot rodder yet that doesn't swear by the
stuff. It likes a very clean surface.

On Tue, Jul 10, 2012 at 8:15 PM, Fin Beven <FinBeven@msn.com<mailto:FinBeven@msn.com>> wrote:

> Somehow this question must have been asked-and-answered 1000 times, but
> I'm just wondering if there are any new thoughts.
>
> The "road noise' in our cockpit is sufficiently loud that it's hard to
> carry on a conversation between driver and co-pilot, a cell-phone
> conversation (hands-free, of course, in CA), or to listen to the stereo at
> reasonable levels.
>
> I have relatively good insulation under my engine hatch, and the entire
> floor of the cockpit, stairs, and the rest of the coach are all covered
> with good quality carpet.
>
> Mostly, it seems to be wind-noise at the windows.
>
> The two easy improvements I am considering are:
>
> 1. Replace all of the "felt" around the "slider" windows in the
> cockpit.
>
> 2. Replace the two large windows in the galley area with the new
> style windows. My logic here is that the new windows have a smaller
> opening section, thus conceivable letting in less road noise.
>
> And yes, the Bose "noise canceling" headphones do work. The new model
> even has a microphone that will work with an I-Phone, but would not be
> legal for the driver to use. If you haven't tried them, they are amazing.
>
> Any thought or suggestions would be appreciated.
>
> Fin Beven
> 1976 ex-Edgemont
> Pasadena, CA
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist<http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist>
>



--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
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Re: [GMCnet] Road Noise [message #176395 is a reply to message #176336] Wed, 11 July 2012 23:56 Go to previous messageGo to next message
ljdavick is currently offline  ljdavick   United States
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
Senior Member
Fin,

I’ve used some thick adhesive rolled flashing on the interior of my daughter’s Wesfalia that I had around the house from when we installed new windows. I don’t know what it will do for sound deadening, but the doors sure close with a thud. Now it sound much more like a Mercedes than a tin van. This is the stuff, like Ice and Water Dam, that self-seals around a nail hole. I suspect it’s a bitumen rubber material.

Fortunately I had new struts for the rear hatch. Adding that stuff made it heavy enough that the hatch just wouldn’t stay open by itself. I had half a mind to plaster the inside ceiling of the GMC with this. I think a roll of it is about $15 at my local Ace hardware store, likely cheaper on-line.

Any thought to using Dynamat on the ceiling?

Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA

On Jul 11, 2012, at 10:16 AM, Fin Beven wrote:

> Steve .... thanks. The whole inside of my Vanagon is lined with Dynomat.
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
Re: [GMCnet] Road Noise [message #176414 is a reply to message #176271] Thu, 12 July 2012 07:23 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
Senior Member
Anyone lined the cockpit with Dynamat?


-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
Re: [GMCnet] Road Noise [message #176453 is a reply to message #176414] Thu, 12 July 2012 11:10 Go to previous messageGo to next message
powerjon is currently offline  powerjon   United States
Messages: 2446
Registered: January 2004
Karma: 5
Senior Member
I have dynamat under the front carpet over the doghouse. Had it
under all the carpet but remove it when the carpet was replaced with
Pergo flooring. It mutes the noise.

JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan


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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
Re: [GMCnet] Road Noise [message #205816 is a reply to message #176453] Thu, 25 April 2013 09:22 Go to previous messageGo to next message
SeanKidd is currently offline  SeanKidd   United States
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
Senior Member
http://www.gmcmhphotos.com/photos/oddsnends/p48864-cockpit-dynamat.html

Here is my Dynamat install, I also installed a heat shield (cookie sheet on steroids) over my mufflers. I used an oil drip pan from Wally World, about 30"X60"' with 1" spacers)I filled the space between floor and heat shield with fire stop spray foam (orange) has an autoignition temperature arond 700 degrees IIRC. the combination is astounding. the drip pan itself is too thin and exacerbates any vibration, you need the foam too.


Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
Re: [GMCnet] Road Noise [message #205817 is a reply to message #176271] Thu, 25 April 2013 09:25 Go to previous messageGo to next message
SeanKidd is currently offline  SeanKidd   United States
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
Senior Member
oops, tried to add photo

Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers

[Updated on: Thu, 25 April 2013 09:28]

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Re: [GMCnet] Road Noise [message #205818 is a reply to message #205816] Thu, 25 April 2013 09:30 Go to previous messageGo to next message
Jp Benson is currently offline  Jp Benson   United States
Messages: 649
Registered: October 2011
Location: Fla
Karma: 2
Senior Member
Nice job.  I see you've got some bubble wrap on the side walls.  Looks like you've got the sound and heat baffled pretty good.

JP





>________________________________
> From: Sean Kidd <fiatkidd@yahoo.com>
>To: gmclist@temp.gmcnet.org
>Sent: Thursday, April 25, 2013 10:22 AM
>Subject: Re: [GMCnet] Road Noise
>
>
>
>
>http://www.gmcmhphotos.com/photos/oddsnends/p48864-cockpit-dynamat.html
>
>Here is my Dynamat install, I also installed a heat shield (cookie sheet on steroids) over my mufflers.  I used an oil drip pan from Wally World, about 30"X60"' with 1" spacers)I filled the space between floor and heat shield with fire stop spray foam (orange) has an autoignition temperature arond 700 degrees IIRC.  the combination is astounding. the drip pan itself is too thin and exacerbates any vibration, you need the foam too.
>--
>73 Ex-CanyonLands 26' #317 "Oliver"
>Hubler 1-Ton, Quadra Bags, Rear Disc, Reaction Arms,
>Fluorescent Mineral Capital of the World, New Jersey
>_______________________________________________
>GMCnet mailing list
>Unsubscribe or Change List Options:
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>
>
>
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Re: [GMCnet] Road Noise [message #205821 is a reply to message #205816] Thu, 25 April 2013 09:46 Go to previous messageGo to next message
Ray Erspamer is currently offline  Ray Erspamer   United States
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
Senior Member
Sean, I like your table design for between the 2 swivel seats, do you have any
info, a plan or dimensions for it ??

Thanks

Ray


Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/




________________________________
From: Sean Kidd <fiatkidd@yahoo.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, April 25, 2013 9:22:34 AM
Subject: Re: [GMCnet] Road Noise



http://www.gmcmhphotos.com/photos/oddsnends/p48864-cockpit-dynamat.html

Here is my Dynamat install, I also installed a heat shield (cookie sheet on
steroids) over my mufflers. I used an oil drip pan from Wally World, about
30"X60"' with 1" spacers)I filled the space between floor and heat shield with
fire stop spray foam (orange) has an autoignition temperature arond 700 degrees
IIRC. the combination is astounding. the drip pan itself is too thin and
exacerbates any vibration, you need the foam too.
--
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quadra Bags, Rear Disc, Reaction Arms,
Fluorescent Mineral Capital of the World, New Jersey
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Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431
Re: [GMCnet] Road Noise [message #205830 is a reply to message #205821] Thu, 25 April 2013 11:21 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
Senior Member
Thanks for the picture. Teri and I are going to do similar to our floor. Think I will run it down the steps too.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: [GMCnet] Road Noise [message #205838 is a reply to message #205830] Thu, 25 April 2013 12:02 Go to previous messageGo to next message
Ray Erspamer is currently offline  Ray Erspamer   United States
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
Senior Member
When we did our front 1/2 renovation we used 2 types of sound insulation made by
E-Dead which is very similar to Fat-Mat. We used Edead 80 and V4, one is for
low frequencies and one for high. We did the entire cab floor and steps,
firewall, cab side panels, coach floor back to the door and 2 feet up the coach
side walls from the steps back to the door. It made a tremendous difference in
interior noise. The new body pads also made a huge difference.

Ray


Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/




________________________________
From: Dan Gregg <gregg_dan@hotmail.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, April 25, 2013 11:21:15 AM
Subject: Re: [GMCnet] Road Noise



Thanks for the picture. Teri and I are going to do similar to our floor. Think I
will run it down the steps too.
Dan
--
Dan & Teri Gregg
Dexter, Mo.

http://danandteri.blogspot.com/




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Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431
Re: [GMCnet] Road Noise [message #205855 is a reply to message #205838] Thu, 25 April 2013 15:36 Go to previous messageGo to next message
SeanKidd is currently offline  SeanKidd   United States
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
Senior Member
Ray, actually, that frame was designed to support the skinny middle seat from the odyssey, I liked my buddy seat setup, so reproduced it, and made it removable for easy access to the engine hatch. I can take some more detailed photos if you'd like.

Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
Re: [GMCnet] Road Noise [message #205857 is a reply to message #205855] Thu, 25 April 2013 15:47 Go to previous messageGo to next message
lqqkatjon is currently offline  lqqkatjon   United States
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
Senior Member
Sean, that seat setup is awsome.

what years are those seats out of.

if i could have both my girls be able to sit up front, there would be alot less fighting.





Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/
Re: [GMCnet] Road Noise [message #205866 is a reply to message #205838] Thu, 25 April 2013 16:41 Go to previous messageGo to next message
SeanKidd is currently offline  SeanKidd   United States
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
Senior Member
Ray, actually, that frame was designed to support the skinny middle seat from the odyssey, I liked my buddy seat setup, so reproduced it, and made it removable for easy access to the engine hatch. I can take some more detailed photos if you'd like. If you are referring t the original interior, the drop down table was a factory option, which I have for sale.

Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
Re: [GMCnet] Road Noise [message #205867 is a reply to message #205857] Thu, 25 April 2013 16:42 Go to previous message
SeanKidd is currently offline  SeanKidd   United States
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
Senior Member
2012 Odyssey middle row, many do not like this year because of the arm rest on one side only, i couldn't pass up a goo deal though.

Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
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