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Old 04-02-2016, 07:56 PM   #1
Mini-Skoolie
 
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Join Date: Jan 2015
Location: Vermont
Posts: 49
Year: 2003
Engine: DT466E
Noise Reduction - while driving - Wind and Engine

I've read a bunch about Dynamat and other noise dampeners/insulators for a front-engine 2003 International and I'm going to pull the trigger on this suff for the interior:
Amazon.com: Noico Liner 37.5 Sqft Heat & Cool Automotive Insulation Pad, Foam Self-adhesive Sound Deadening and Dampening Mat for Cars & Trucks (1/6'' or 157 Mil Sound Deadener): Automotive
And this for the engine compartment:
Robot Check
and this for the floor and internal firewall.
Robot Check

QUESTION:

A fair amount of the noise is likely coming from wind.

The driver side window is definitely a culprit. Does anyone know where I can find a wind defector for that window?
^ same question for the entry door.

I was thinking of hacking something like this:
Robot Check

If not, anyone fabricate one successfully? I made air intakes for the generators by successful forming lexan, but wind deflectors are a little more complicated to get right I understand.

I've written to a number of school bus accessory shops without success...

Any other tips to reducing noise would be awesome!
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Old 04-02-2016, 08:08 PM   #2
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Join Date: Mar 2016
Location: chicago, il
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Year: 2003
Chassis: IC CE
Engine: T444
like this thing Frost King Heat & Air Deflector 10 To 14 in. HD5
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Old 04-02-2016, 08:17 PM   #3
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Location: Eustis FLORIDA
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Year: 1992
Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
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Quote:
Originally Posted by Kylebetaclark View Post
I've read a bunch about Dynamat and other noise dampeners/insulators for a front-engine 2003 International and I'm going to pull the trigger on this suff for the interior:
Amazon.com: Noico Liner 37.5 Sqft Heat & Cool Automotive Insulation Pad, Foam Self-adhesive Sound Deadening and Dampening Mat for Cars & Trucks (1/6'' or 157 Mil Sound Deadener): Automotive
And this for the engine compartment:
Robot Check
and this for the floor and internal firewall.
Robot Check

QUESTION:

A fair amount of the noise is likely coming from wind.

The driver side window is definitely a culprit. Does anyone know where I can find a wind defector for that window?
^ same question for the entry door.

I was thinking of hacking something like this:
Robot Check

If not, anyone fabricate one successfully? I made air intakes for the generators by successful forming lexan, but wind deflectors are a little more complicated to get right I understand.

I've written to a number of school bus accessory shops without success...

Any other tips to reducing noise would be awesome!
I have a very similar setup to yours and plan on building a plywood, insulated box to go over my doghouse and double as a table top. SHould cut down the noise quite considerably.
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Old 04-02-2016, 08:29 PM   #4
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Engine: T444
Quote:
Originally Posted by EastCoastCB View Post
I have a very similar setup to yours and plan on building a plywood, insulated box to go over my doghouse and double as a table top. SHould cut down the noise quite considerably.
will that add heat to the engine?
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Old 04-02-2016, 08:39 PM   #5
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Join Date: Apr 2013
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Year: 1993
Coachwork: bluebird
Engine: 5.9 Cummins, Allison 545
Rated Cap: 2
i've been considering the sound mat over my engine cover. dang its loud in there.

post pics and your results!
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Old 04-02-2016, 08:55 PM   #6
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Coachwork: Bluebird
Engine: 5.9 Cummins
Rated Cap: 2 elderly children, 1 cat
Used peal and seal inside the doghouse. Adjusted the entry door so it's tighter.

All helps.
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Old 04-02-2016, 09:00 PM   #7
Mini-Skoolie
 
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Join Date: Jan 2015
Location: Vermont
Posts: 49
Year: 2003
Engine: DT466E
yeah, thats a good idea, but I put in a co-pilot seat (got her for free and reupholstered) and there is barely enough legroom for her anymore...)



there is this pathetic insulation/soundproof on the interior of the engine firewall... its like 1/8" paneling. I might rip that out and put adhesive backed high density foam.

I just took out the doghouse and there is about 1/2" of foil backed foam on the engine side. I'll see how flexible the insulation is and if I can put an interior layer or augment the engine side layer on it.
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Old 04-02-2016, 09:01 PM   #8
Mini-Skoolie
 
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Posts: 49
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Engine: DT466E
hrmmmm... I haven't looked at the adjustment of the door.

Thanks for the tip!
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Old 04-02-2016, 09:04 PM   #9
Bus Geek
 
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Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,171
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Coachwork: Ward/AmTran
Chassis: International
Engine: dt466
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Quote:
Originally Posted by Azuleslight View Post
will that add heat to the engine?
nope. Will cut down on noise and heat in the cab though.

You could move her seat to the back of the bus, that would cut down on noise! lol
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Old 04-02-2016, 09:15 PM   #10
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Posts: 49
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Engine: DT466E
precisely the insight I was seeking! Multiple reasons to move the seat!
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