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05-13-2018, 05:52 AM
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#1
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Mini-Skoolie
Join Date: May 2018
Posts: 45
Year: 2001
Coachwork: Bluebird
Chassis: Freightliner
Engine: Cummings 6 cylinder diesel
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Sound proofing question
I want to try to soundproof as much as possible my bus. I know acoustimass is pretty pricey but in the long run I think it'd be worth the money. Has anyone here had any experience using acoustimass on the dash and the floor of the bus?
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05-13-2018, 08:35 AM
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#2
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Bus Geek
Join Date: Sep 2017
Location: Owasso, OK
Posts: 2,627
Year: 1999
Coachwork: Thomas
Chassis: Saf-T-Liner MVP ER
Engine: Cummins 6CTA8.3 Mechanical MD3060
Rated Cap: 46 Coach Seats, 40 foot
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Quote:
Originally Posted by Anthrobus
I want to try to soundproof as much as possible my bus. I know acoustimass is pretty pricey but in the long run I think it'd be worth the money. Has anyone here had any experience using acoustimass on the dash and the floor of the bus?
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If you don't have a bus already, the best soundproofing, at least while driving, starts with a rear engine.
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05-13-2018, 08:44 AM
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#3
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Mini-Skoolie
Join Date: May 2018
Posts: 45
Year: 2001
Coachwork: Bluebird
Chassis: Freightliner
Engine: Cummings 6 cylinder diesel
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Quote:
Originally Posted by Twigg
If you don't have a bus already, the best soundproofing, at least while driving, starts with a rear engine.
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Already have the bus. It's a dog nose.
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05-13-2018, 09:11 AM
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#4
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Bus Geek
Join Date: Sep 2017
Location: Owasso, OK
Posts: 2,627
Year: 1999
Coachwork: Thomas
Chassis: Saf-T-Liner MVP ER
Engine: Cummins 6CTA8.3 Mechanical MD3060
Rated Cap: 46 Coach Seats, 40 foot
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Quote:
Originally Posted by Anthrobus
Already have the bus. It's a dog nose.
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Some dog nose buses have significant intrusion into the cabin with a dog house, others not so much. Either way, concentrating the bulk of the expensive material on the firewall and eliminating ALL gaps would help a lot. Insulating the dog house can be tricky though. Maybe some inside and some outside.
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05-13-2018, 10:34 AM
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#5
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Bus Crazy
Join Date: Apr 2013
Location: Colorado
Posts: 2,362
Year: 1993
Coachwork: bluebird
Engine: 5.9 Cummins, Allison AT1545
Rated Cap: 2
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i've seen some dog houses covered with it and then carpet.
i used the aluminum roof sealer tape from HD and it worked very well. it appears the be a similar product to the dynomat.
one neat thing about it is that it goes further than you think. to quiet a large piece of metal from rattling, it just takes a small piece of the deadener to change the mass of the panel, there fore changing its resonance rattle frequency. there is more than just sound proofing going on with the products.
my dash board rattled bad, and now the noise makers got little pieces of the product, and it doesn't rattle at all.
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05-13-2018, 10:51 AM
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#6
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Rattle proofing stuff is an obsession I have. My dodge beater van really drives me nuts.
I sound deadened and rattle-proofed an old Honda I had. I used undercoating and lots of dynamat. Had some spray stuff called "roadkill" that worked real well.
In a bus I try not to let the rattles and creaks get to me much. I'll eventually get this dashboard of mine fixed. Gonna go full-custom since mine's so thrashed.
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05-13-2018, 12:42 PM
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#7
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Bus Geek
Join Date: Sep 2017
Location: Owasso, OK
Posts: 2,627
Year: 1999
Coachwork: Thomas
Chassis: Saf-T-Liner MVP ER
Engine: Cummins 6CTA8.3 Mechanical MD3060
Rated Cap: 46 Coach Seats, 40 foot
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Quote:
Originally Posted by EastCoastCB
Rattle proofing stuff is an obsession I have. My dodge beater van really drives me nuts.
I sound deadened and rattle-proofed an old Honda I had. I used undercoating and lots of dynamat. Had some spray stuff called "roadkill" that worked real well.
In a bus I try not to let the rattles and creaks get to me much. I'll eventually get this dashboard of mine fixed. Gonna go full-custom since mine's so thrashed.
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And I thought you liked to "Shake, Rattle and Roll".
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05-13-2018, 04:13 PM
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#8
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Bus Nut
Join Date: Apr 2018
Location: Wisconsin N.E.
Posts: 412
Year: 2000
Coachwork: Thomas
Chassis: Thomas
Engine: 5.9
Rated Cap: 72
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Quote:
Originally Posted by EastCoastCB
Rattle proofing stuff is an obsession I have. My dodge beater van really drives me nuts.
I sound deadened and rattle-proofed an old Honda I had. I used undercoating and lots of dynamat. Had some spray stuff called "roadkill" that worked real well.
In a bus I try not to let the rattles and creaks get to me much. I'll eventually get this dashboard of mine fixed. Gonna go full-custom since mine's so thrashed.
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I spent weeeeeks on my 62 Econoline. A pair of 15" subs will bring out every rattle
Dynamat for the dog house, better screws in panels, I even rubber mounted the license plate. A little dab of silicone adhesive works wonders on small rattles.
For engine noise I used dynamat but I think the rubber backed cheap hd carpet did just as much
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05-13-2018, 05:34 PM
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#9
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Bus Nut
Join Date: Dec 2016
Location: Pennsylvania
Posts: 261
Year: 2003
Coachwork: Thomas EF
Engine: Cat 3126
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We did Roadkill under the wrong half of the bus as well as the dog box. Forgot to do the steps, but we will. With what we have done so far, along with insulation, subfloor, underlayment, and flooring, the bus is much quieter.
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05-13-2018, 06:10 PM
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#10
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by Whatthefak
I spent weeeeeks on my 62 Econoline. A pair of 15" subs will bring out every rattle
Dynamat for the dog house, better screws in panels, I even rubber mounted the license plate. A little dab of silicone adhesive works wonders on small rattles.
For engine noise I used dynamat but I think the rubber backed cheap hd carpet did just as much
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Dynamat is over-hyped for sure. I used it and was pleased but would look for cheaper options now.
I only had one 15" in the honda with 1200 watts. The rattles were a constant battle!
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05-13-2018, 06:48 PM
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#11
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Bus Nut
Join Date: Dec 2016
Location: Pennsylvania
Posts: 261
Year: 2003
Coachwork: Thomas EF
Engine: Cat 3126
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Quote:
Originally Posted by EastCoastCB
Dynamat is over-hyped for sure. I used it and was pleased but would look for cheaper options now.
I only had one 15" in the honda with 1200 watts. The rattles were a constant battle!
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Lose bolts and screws from a sub isn't Dynamat's fault. That stuff works great.
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