Engine room noise/insulation material

[mbulriss]

Brad,

Interesting report. Since I like first hand reports, I went to
Google on Duct Liner and found that is a generic name with several
different companies making a product with that name (Owens Corning,
CertainTeed, Knauf, Crown Acoustic, etc.).

Which manufacturer made the product you used?

Mike Bulriss
1991 WB40 "Texas Minivan"
San Antonio, TX



--- In WanderlodgeForum@yahoogroups.com, "kingmtpg" wrote:
>
> Dick, I am new to BB's, having one just a couple of months, but I had
> my Cat house off improving intake airflow and adjusting valves. My
> insulation was shot so I started looking around for some affordable
> insulation material and happened on a website about quieting engine
> noise and reducing cab heat in Hummers. (diesel engine right between
> driver and passenger) The author wrote that he had found (and used) a
> material used to line duct work called Duct Liner. I had already
> applied a layer of Astro-Foil (kind of a bubble wrap with aluminum on
> both sides) that I had laying around the shop. I went to one of our
> local HVAC contractors here and bought WAY more than enough material
> to insulate the Cat house. Cost $15. I cut a small sample, put it on
> vise (as I did with the Astro-Foil) tried to ignite it on both sides,
> then proceded to insulate the Cat house. My 1100 mile road test was
> leaving Yuma a couple of weeks ago (100 deg) with 6500# auto hauler
> (with 4Runner) in tow. 7300' climb up to Flagstaff, then to Moab via
> Mexican Hat and up and over Mokee Dugway to Blanding. We NEVER
> experienced any heat radiating through the Cat house. Not once. Maybe
> you experienced guys already know about this stuff, if so I couldn't
> find it on the forums. On my road test after a couple of particularly
> hard climbs, I lifted the Cat hood (with fire extinguisher at hand)
> and was surprised to find the interior insulation material no warmer
> than my hand. The Cat house was simply not absorbing and retaining
> heat. Anyway, not very scientific but worked for me. Total cost,
> about $25. Brad Bloxham 35' 78 3208NA Yuma AZ, now Idaho Falls, ID---
> In WanderlodgeForum@yahoogroups.com, "Richard Hayden"
> wrote:
> >
> > While my radiator is out I am renewing the heating hoses and
> installing new insulation in the engine room. Everything was going
> along fine till I discovered that I am a little short of enough
> insulation material to finish the job. Has anyone who has done this
> job have any leftovers? What I am using is 1" thick with foil on one
> side. There is also a pvc layer between two layers of open cell
> foam. I need a piece 46" x 51" or pieces that add up to that. (The
> actual pieces needed are 22" x 48" plus 24" x 51").
> >
> > Any help will by greatly appreciated.
> >
> > Oh yes, I'll by glad to pay for the material as well as the
> shipping.
> >
> > Thanx
> >
> > Dick Hayden - '87 PT 38 - Lake Stevens, WA
> >
> > [Non-text portions of this message have been removed]
> >
>