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04-27-2011, 03:15 PM
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#201
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4 Rivet Member 
Currently Looking...
1986 34.5' Airstream 345
Longview
, Washington
Join Date: Feb 2011
Posts: 259
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Quote:
Originally Posted by Keyair
I need to decide on what Sound and heat Insulation to use tho...
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THIS I am interesting in knowing more about!
Although I am now officially no longer an Airstreamer - I am still an "Airstream hopeful" - or an "Aspiring Airstreamer" - and in mid-rebuild of an old 1978 Dodge Sportsman Class-C 21' (or so) Mobile Traveler, and doing a total custom job on the inside - and adding a cargo shelf, full body width, protruding 3' off the rear to hold the generator, extra propane, gasoline, and water tanks, as well as some tools, etc. The platform will have a box built onto it, and be clad in aluminum, and appear to be an integrated part of the MoHo, like - a "'normal" trunk on a '20's to '40's automobile.
So - the generator will be on that platform - well behind the original rear of the vehicle, adding an extra few hundred Lbs of load that far aft from the rear axle - and I am very interested in how best to soundproof the box it will be in, inside the platform box.
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05-01-2011, 12:33 PM
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#202
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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I am very much on the learning curve...
Here is how my Original Insulation looks now..
Clearly, it is nor was very effective at heat or sound insulation...
I have done a ton of research, and really am not decided yet.
If money was no object, it would be a layer of FATMAT ot MLV on the walls, then a layer of thicker less dense foam, then a aluminised layer for heat reflection, oil resistance and light reflection.
Lots of good info here:
http://www.soundproofing.org/
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05-01-2011, 07:09 PM
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#203
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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Been feeling under the weather last few days, but did a few things...
No matter what I tried to get a nice consistant finish on the Edelbrock Intake, it still looked stained, and dirty. I tried Soda and Bead blasting, degreaser, and etch wheel cleaner...
Still looked crummy.
So, I hit it with a coat or two of Aluminum Engine Paint.
I also had decided to repaint the Quadrajet gloss black...
Its not fully assembled yet, but I like the look better...
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05-06-2011, 05:03 PM
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#204
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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Rebuilt Quadrajet, and Edelbrock Intake READY!
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05-06-2011, 06:22 PM
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#205
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Rivet Master 
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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Quote:
Originally Posted by Keyair
I am very much on the learning curve...
Here is how my Original Insulation looks now..

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That whole lash-up sure looks funky, hard to believe that's a factory job, did AS use Kohlers? My Onan is all sealed as you describe and quiet as all get-out.
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05-12-2011, 04:15 PM
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#206
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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Mike, most of them for this era had this unit...
It was quite quiet, but am hoping to inprove it more!
I spent some time on the phone with Randi, Of Soundproofing.org
Great guy with way more info and tech knowledge than I could absorb...
I will be skipping down there next week to get my materials and will post an update soon!
Oopps... I screwed up my Photobucket Pic posting by putting the Carb pics in the wrong folder... now I moved them, and the pics have gone, and I cant edit the post!
Doh.
Also...
Since when did I become a "Rivet Master"!
I feel like a Rivet Moron!
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05-12-2011, 05:35 PM
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#207
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4 Rivet Member 
Currently Looking...
1986 34.5' Airstream 345
Longview
, Washington
Join Date: Feb 2011
Posts: 259
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Quote:
Originally Posted by Keyair
Also...
Since when did I become a "Rivet Master"!
I feel like a Rivet Moron!
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That has to do with how many posts you've made - you're up to 624 with that one...
I was so excited to go from "2 Rivet Member" to "3 Rivet Member" when I hit 200 posts - now I'm trying to figure out when I'll be a "4 Rivet Member" - maybe 300?
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05-12-2011, 10:04 PM
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#208
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Rivet Master 
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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Quote:
Originally Posted by Keyair
Mike, most of them for this era had this unit...
It was quite quiet, but am hoping to inprove it more!
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Upon looking at your gen set pic again, it appears there has been a ton of heat build-up in the upper area. Perchance, is that why the "scoops" were installed? Even though, in a stationary situ, it's moot, and, maybe counter-productive.  Here's my roof after 1300 hrs.
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05-13-2011, 12:07 AM
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#209
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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Mmmm, Interesting.
Maybe the Onan runs cooler?
Is it a twin Cylinder?
My Genset only shows 83hrs on its clock...
I am interested to know if my scoops are factory or added?
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05-13-2011, 09:53 AM
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#210
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Rivet Master 
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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Quote:
Originally Posted by Keyair
I am interested to know if my scoops are factory or added?
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I've never seen them before, but, geez, how often do we see any of our brothers and sisters on the road?
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05-13-2011, 12:02 PM
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#211
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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I spent about an hour looking thru all the pics I have collected, as well as here and Fred's looking for an answer...
Either they are different years, or the pics are too low quality to see..
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05-13-2011, 12:20 PM
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#212
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Rivet Master 
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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Are the screens still in the back of the scoops?
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05-13-2011, 12:33 PM
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#213
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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Quote:
Originally Posted by Mike Leary
Are the screens still in the back of the scoops?
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Yes, If I remember rightly, there is metal mesh over the inside of each scoop..
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05-13-2011, 12:50 PM
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#214
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Rivet Master 
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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Our doors look alike, are the scoops plastic (abs)?
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05-13-2011, 01:05 PM
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#215
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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Quote:
Originally Posted by Mike Leary
Our doors look alike, are the scoops plastic (abs)?
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I thought they were metal, but will check!
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05-13-2011, 01:16 PM
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#216
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Rivet Master 
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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Judging from the amount of heat damage to the insulation, I'd be real tempted to pull those scoops; who the heck needs them? A fan system perhaps if those gen sets run that hot.
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05-13-2011, 01:31 PM
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#217
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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To be honest Mike, even that same insulation that is in my spare wheel area is failing, so not sure how much of it is heat related.
After talking in detail to the Soundproofing guy, and thinking about getting it done,and done right, I think I am gonna mount a pair of 180mm Computer case fans, to the upper door louvers to suck air out when the Generator is running... So, like a 110V computer power supply powering them?
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05-13-2011, 01:44 PM
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#218
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Rivet Master 
1984 34.5' Airstream 345
Foothill Ranch
, California
Join Date: Mar 2010
Posts: 4,671
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So, here is my door, as I posted over on SS's thread...
Here is how my genset looks... Oil leaks and all...
Underside is soaked...
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05-13-2011, 02:01 PM
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#220
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Rivet Master 
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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I'm not sure if you want to suck or blow (geez, that sounds dirty). Brad's idea is a good one, although I'm not sure it's needed. I mean, how often does the gen set need to slide out? (p.s. , post some pics if you ever accidently leave that slide open when you leave the campground) ((I've done it on one of my others)).
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