Date: Wed, 16 Jul 2008 08:38:14 -0700
Reply-To: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Roger Whittaker <rogerwhitt1@GMAIL.COM>
Subject: Re: Fiberglass Exhaust Wrap - Cooler engine compartment
In-Reply-To: <5ebe10a0807160750w7c198324t3bcb1489447ad298@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
dear wrappers and wanna be wrappers
this application is usually used in marine applications where exhaust is
routed through decks or cabin and house bulkheads ...
maybe the question would be best researched in a marine discussion group...
i am only familiar that this is practiced in this group ... my own marine
experience is limited to deck hand on working boats, hull/house/cabin
repairs and painting ... as well as helping a marine surveyor from time to
time
if any list members are marine engineers they may be able to offer clues as
to why the practice is very common in marine exhaust and less so in the
automotive world ...
inquiring minds need to know ...
yours
On Wed, Jul 16, 2008 at 7:50 AM, Chris S <szpejankowski@gmail.com> wrote:
> John,
>
> I did more research and your concern is very valid.
>
> Due to the possibility of overheating the exhaust pipes, stressing welds,
> and affecting bolted-on components like heads, I decided against wrapping
> the exhaust system. I will instead insulate the components I want to
> protect from the heat, like the fuel lines and possibly intake distributor.
>
> Thanks everyone for your input.
>
> Chris S.
>
> On Tue, Jul 15, 2008 at 10:35 PM, John Rodgers <inua@charter.net> wrote:
>
> > A caution.
> >
> > Often, exhaust systems are designed to utilize the free air to help keep
> > them cool. It does pretty well as long as the vehicle is moving right
> along,
> > but get slow or stop and the heat is not carried away but collects in the
> > engine space, making it mighty hot. It is all a trade off. If you wrap
> the
> > exhaust with any kind of insulating material you are going to really cook
> > the devil out of those pipes when running at power - which is the time
> you
> > really want them to be cooling in the breeze and getting all that heat
> > carried away. The exhaust system will burn out much, much sooner than if
> > simply let exposed to the ambient air.
> >
> > So be careful in your choices on your Vanagon.
> >
> > Regards,
> >
> > John Rodgers.
> >
> >
> > Chris S wrote:
> >
> >> Is anyone here using fiberglass exhaust wrap? Any comments and/or
> >> experiences?
> >>
> >> I'm thinking of wrapping the entire exhaust up to the catalytic
> converter.
> >> Also I'd like to insulate the intake runners and place some insulating
> mat
> >> between the fuel lines and the engine.
> >>
> >> Chris S.
> >>
> >>
> >>
> >>
> >
> >
> >
>
--
roger w
There are two kinds of jobs in the world:
Picking up garbage and telling people things.
Successful people do both, with the same good attitude. (riw)
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