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[GMCnet] Onan Compartment Insulation [message #128129] Wed, 01 June 2011 03:18 Go to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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G'day,

Avions have galvanized sheet metal compartments for the Onan.

I have insulated it on the coach side using a four layer product: 1/8" foam
rubber - 1/8" high density vinyl - 1/2" foam - silver Mylar.

I would like to insulate the Onan side and did a Google search and found
TONS of insulation that "could" be used.

If you have insulated the Onan compartment what did you use?

Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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Re: [GMCnet] Onan Compartment Insulation [message #128132 is a reply to message #128129] Wed, 01 June 2011 05:34 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
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Registered: May 2010
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Rob, My onan compartment is a 1/2 " Plywood box that is covered on the Gen
set side with 24 ga galvanized sheet metal. It was deteriorated due to PO
not treating water leaks. When I rebuilt the plywood box, I sealed the box
to the body with great stuff expansion foam sealant, and used some left over
dynamat that I had. I overlaid that with petproof foam carpet backing left
over from when I did the area of the coach under the front seats. The noise
reduction is very good. If the roof air is on you can't hear the gen set
when you are up front. If you are in the rear it can still be heard. I don't
know the Db reduction.
Jim Hupy
Salem, OR
78 GMC Royale Dr side dry bath, double bunks, 403

On Wed, Jun 1, 2011 at 1:18 AM, Rob Mueller <robmueller@iinet.net.au> wrote:

> G'day,
>
> Avions have galvanized sheet metal compartments for the Onan.
>
> I have insulated it on the coach side using a four layer product: 1/8" foam
> rubber - 1/8" high density vinyl - 1/2" foam - silver Mylar.
>
> I would like to insulate the Onan side and did a Google search and found
> TONS of insulation that "could" be used.
>
> If you have insulated the Onan compartment what did you use?
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
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Re: [GMCnet] Onan Compartment Insulation [message #128147 is a reply to message #128129] Wed, 01 June 2011 08:15 Go to previous messageGo to next message
g.winger is currently offline  g.winger   United States
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Location: Warrenton,Missouri
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Rob,,,,with the problems that others have had with poor or bad fuel lines, and FIRE. I wouldn,t put anything in the engine compartment or the gen box that can burn! HWID,,,,,I purchased from a company in CA 1/2 inch thick ceramic insulation. 24 wide.(50 feet long) The guy that owns the company has a GMC!! So,,,I cut it down to about 21-22 wide and wrapped it(encapsulated) with .005(5 thousands) aluminum foil. Its almost like thin sheet metal. Reflects well,,, and isulates. As for sound,,,we can now carry on a conversation and you only here the 509 when its a steep hill. Rolled around on a stool and used wood and sheet metal screws before the install. In an effert to keep down ANYTHING that would contribute fuel I ran metal vacume lines. Thats,,,,brake,cruise,trans,etc,,,. I used 3 tyraps total. Ran conduit from the rear to the front of the motor compartment and from the right to left side in front of the rad and ran my wires in those. But remember,,,,I bend pipe for a livin. I wanted to show you at Duq, but you missed it!!!! Ask some of the guys that looked when I had the engine cover and wheel/inerfender off how it looked,,,,,PL

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Re: [GMCnet] Onan Compartment Insulation [message #128149 is a reply to message #128129] Wed, 01 June 2011 08:24 Go to previous messageGo to next message
g.winger is currently offline  g.winger   United States
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
Karma: 0
Senior Member
Did a general search for "ceramic engine compartment insulation' and the first one up was http://www.engineheatprotection.com/ or EHP. I think I had to ask for a certan size not listed on the website. he also sent me some small samples of "hard' and "wet' ceramic. The wet is used to form around headers/ex manifolds or other odd shapes. The .005 foil was craft foil from a hobby supplier. 50' by 24" (don't know what that is in meters, my mind won't think in down under)GL,,,,,PL

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Re: [GMCnet] Onan Compartment Insulation [message #128152 is a reply to message #128147] Wed, 01 June 2011 09:00 Go to previous message
Mr ERFisher is currently offline  Mr ERFisher   United States
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Registered: August 2005
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What guy?


FREE WIFI @ Mickey D





On Jun 1, 2011, at 6:15 AM, Paul Leavitt <leavittpaul@yahoo.com> wrote:

>
>
> Rob,,,,with the problems that others have had with poor or bad fuel lines, and FIRE. I wouldn,t put anything in the engine compartment or the gen box that can burn! HWID,,,,,I purchased from a company in CA 1/2 inch thick ceramic insulation. 24 wide.(50 feet long) The guy that owns the company has a GMC!! So,,,I cut it down to about 21-22 wide and wrapped it(encapsulated) with .005(5 thousands) aluminum foil. Its almost like thin sheet metal. Reflects well,,, and isulates. As for sound,,,we can now carry on a conversation and you only here the 509 when its a steep hill. Rolled around on a stool and used wood and sheet metal screws before the install. In an effert to keep down ANYTHING that would contribute fuel I ran metal vacume lines. Thats,,,,brake,cruise,trans,etc,,,. I used 3 tyraps total. Ran conduit from the rear to the front of the motor compartment and from the right to left side in front of the rad and ran my wires in those. But remember,,,,I bend pipe for a livin
.
> I wanted to show you at Duq, but you missed it!!!! Ask some of the guys that looked when I had the engine cover and wheel/inerfender off how it looked,,,,,PL
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