[T3] Heat exchanger advice

[Jacob Adam Schroeder]

Thanks, everyone.  I am leaning towards leaving everything (insulation and
metal guards) off at the moment.

On Fri, Nov 28, 2014 at 4:06 PM, Mike Fisher <fisherfarms at gmail.com> wrote:

> I would leave off the insulation & the metal guards.  They just trap
> moisture & dirt.
>
> On Fri, Nov 28, 2014 at 3:50 PM, Dave Hall <dave at hallvw.clara.co.uk>
> wrote:
>
> > I think the metal parts were mainly to prevent the ehat insulation
> getting
> > damaged by gravel and rocks thrown up by the wheels.  Leaving off
> > insulation
> > in Northern California probably won't have any adverse effect.  In a
> damper
> > part of the world the heat exchangers don't generally rust through under
> > the
> > insulation, so some benefit is gained by keeping them on if your weather
> > tends to have wet days, and particularly in salty areas - coastal maybe,
> or
> > snow treated with salt.
> >
> > Because we have now got trouble after around 40 years, we tend to think
> > about preventing it from returning in that time... OK for the youngsters
> > maybe, but academic for many more senior enthusiasts!
> >
> > Otherwise, it's personal preference - some like to keep it looking
> > original,
> > but not too many folk look under there anyway, and even fewer would know
> > what they would expect to see.
> >
> > Dave
> > UK VW Type 3&4 Club
> > ===================
> >
> > -----Original Message-----
> > From: type3-vwtype3.org [mailto:
> > type3-vwtype3.org-bounces at lists.vwtype3.org]
> > On Behalf Of Jacob Adam Schroeder
> > Sent: 28 November 2014 15:44
> > To: type3 at vwtype3.org
> > Subject: [T3] Heat exchanger advice
> >
> > I am in the process of rebuilding the engine in my 1972 Square.  I
> located
> > a
> > nice pair of heat exchangers from a local scrap yard, and had them
> blasted
> > and ceramic coated--they look beautiful.
> >
> > My old heat exchangers had the insulation on them, with two metal tins
> (one
> > along the bottom, and one along the curved part) over the outside of the
> > insulation, with everything held on by a series of metal straps.
> >
> > I'm leaning towards not putting the insulation back on.  I understand
> that
> > after 1973, VW quit putting insulation on these anyway.  My insulation is
> > pretty nasty (oil soaked, torn, etc) and if I can get by without it, I
> > think
> > I would like to.  What is the collective wisdom on foregoing the
> > insulation?
> > If climate makes a difference, I live in Northern California.
> > Is there any modern replacement?
> >
> > Next, assuming I forgo the insulation, should I still put on the two
> metal
> > tin pieces on each side?  Are there any vendors that still sell the
> > original
> > (or similar) clamps?  I'd rather not use  generic spiral-tooth hose
> clamps
> > if I can find something similar to the original look.
> >
> > Once I get some time, hopefully this weekend, I'll post pictures of my
> > progress to-date and send a link to the gallery.
> >
> > Thanks in advance,
> >
> > Jacob
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>
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>
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