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Old 07-19-2020, 05:34 PM   #21
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Walker muffler makes exhaust sealing compound, part number 35959. Since this is exhaust might be a good idea to use it as it is made for these types of joints. Wouldn’t want anyone to have leaks from a compound cracking right under their bed.
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Old 09-28-2020, 09:51 AM   #22
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Has anyone found a clamp on muffler that can be added to the tip of the exhaust temporarily to quiet the generator exhaust?
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Old 09-28-2020, 02:22 PM   #23
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The only thing I've found so far to quiet that generator is the "off" switch.
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Old 09-28-2020, 03:33 PM   #24
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The only thing I've found so far to quiet that generator is the "off" switch.

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Old 09-28-2020, 03:51 PM   #25
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I installed resonator 115-2449. It made between 1 and 6 db difference depending on where I was measuring it. There was little to no db difference between generator idle and under load (running the microwave) but there was much less of a sharp rap with the resonator installed.
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Old 09-29-2020, 08:37 AM   #26
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I installed resonator 115-2449. It made between 1 and 6 db difference depending on where I was measuring it. There was little to no db difference between generator idle and under load (running the microwave) but there was much less of a sharp rap with the resonator installed.
Same here, and I have to say to me, it’s a much less annoying sound. I also routed it straight out to the side, just behind the rear wheels. Now, Not only is it quieter. I can also back up further over a curb when parking. I also raised the propane fill on the passenger side, up into the molding ( trim). It now looks like the 2020’s as Airstream realized this problem, and raised it to this location as well. Again, now I can back up as far as to the generator. If I need to in a short parking space. I also replaced the rear skid/drag bars to rollers as they dug in, and left ugly marks on driveway. To me, Airstream should have made these changes a loooong time ago, they were not that costly, and makes a huge difference in the overall van use, and quality of build.
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Old 09-29-2020, 09:16 AM   #27
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Carry one and slip it on and off like this guy.


But to get it to slip on and off, you'll need to de-bur and polish both ends of the connection. But not make it so loose it vibrates off. The change in tone is exactly like what I experienced. Much more pleasant, if not significantly quieter.
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Old 09-29-2020, 09:45 AM   #28
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I don't have a generator built into my rig, and have never gotten very close to a powered Airstream, pretty much a trailer guy, but, and please take this with a grain of salt...

I have had good success reducing sound with Rockwool. It's good to over 2400F and does reduce a good deal of sound....won't eliminate the sound, but might also be good for a few more DB loss. Of course I have no idea how much room is in the generator box area, but the stuff you can get at the big box stores is about 4" thick, but can be thinned as needed...but the thinner the less noise reduction.
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Old 09-29-2020, 10:48 AM   #29
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Thank you
I’ve already installed the resonator part listed. I was hoping for something additional so as to not be obtrusive to the neighbors. I purchased sound deadening material but not sure how to attach it.
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Old 09-29-2020, 01:47 PM   #30
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https://youtu.be/31JFhJqeAgk
Camco genturi exhaust. I don't remember anyone here actually installing one or giving a review. I think the fumes being discharged high up is a plus but storage could be a problem in our vans.
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Old 09-30-2020, 07:28 PM   #31
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Thank you
I’ve already installed the resonator part listed. I was hoping for something additional so as to not be obtrusive to the neighbors. I purchased sound deadening material but not sure how to attach it.

I wonder if a second resonator "slip-on style" would be of any benefit at all? You wouldn't have to use it, but it would go on quicker than most extensions and be much smaller to transport with you.
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Old 10-01-2020, 06:44 AM   #32
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The only sound deadening that I would feel comfortable using is a rubber mount where the generator attaches to the frame. This would likely help dampen the noise you'd hear inside, but doubt it would do much for noise heard outside the van. Haven't yet tried to find any rubber motor mounts designed to function under tension - supporting the weight of the generator when under bouncing loads of several g.
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Old 10-01-2020, 08:21 AM   #33
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The only sound deadening that I would feel comfortable using is a rubber mount where the generator attaches to the frame. This would likely help dampen the noise you'd hear inside, but doubt it would do much for noise heard outside the van. Haven't yet tried to find any rubber motor mounts designed to function under tension - supporting the weight of the generator when under bouncing loads of several g.
Due to the fact that rubber tends to wear under tension, if you will happen to find a motor mount that could fit, please share with us. I would love to install such.
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Old 10-01-2020, 08:37 AM   #34
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When our generator eventually requires major service (e.g. dismount, service, and then re-mount) we will simply replace the darn thing with a new quieter unit instead of making that or any other additional investment in the noisemaker we have now.

For now, though, I must admit to being tempted by the slip-on / slip-off muffler shown above for use in any location where I'm concerned about being "that guy" in the campground. Per the demonstration video, it does indeed sound a bit less annoying with that device on the end of the pipe.
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Old 10-01-2020, 02:36 PM   #35
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If nothing else the neighbors will cut you a break because they can see that you are trying to make it more quiet.
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Old 10-02-2020, 05:56 AM   #36
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You can try this.

https://www.airforums.com/forums/f24...ml#post2288393
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Old 10-02-2020, 09:38 AM   #37
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That looks very promising, thanks for sharing. What exact items did you buy from the vibration mount company? There's too good a chance I'd order the wrong part, etc.
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Old 10-03-2020, 06:26 AM   #38
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That looks very promising, thanks for sharing. What exact items did you buy from the vibration mount company? There's too good a chance I'd order the wrong part, etc.
Details are in the PDF file
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Old 10-03-2020, 07:02 AM   #39
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Got it, thanks.
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