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On my BJ8, I just have "bare" painted floors, and no underfelt. I
just have the factory style fibrous cement heat shields under the floor (wi=
th an air gap) and the firewall engine bay ones.=20
I have heat wrapped extractors that have been on the car for 23 years, with a=
side exhaust, and I don't have any cockpit heat issues.=20
I don't actually understand what issue you men are trying to solve by gluing=
20 kg of sound deadening on the floor or an open Sportscar?=20
Keep the heat out first.=20
Out of the car.=20
Sincerely.=20
Chris Dimmock
Sydney Australia.=20
www.myaustinhealey.com=20
> On 25 Jan 2019, at 7:59 am, Richard Collins <gonnagitcha90@hotmail.com> wr=
ote:
>=20
> FWIW I used dynamat under my rugs, firewall, and trannie tunnel cover. Rar=
ely drive in the summer due to vapor lock issues in traffic but find neither=
heat nor noise is an issue.
>=20
> Regards,
> Richard C
> BN7 440
>=20
> On Jan 24, 2019, at 1:49 PM, Frank Magnusson <fmags@cox.net> wrote:
>=20
>> Yes; you=E2=80=99re right; Dynaliner is their best product for thermal is=
sues.
>> =20
>> From: warthodson@aol.com <warthodson@aol.com>=20
>> Sent: Thursday, January 24, 2019 10:17 AM
>> To: fmags@cox.net; healeys@autox.team.net
>> Subject: Re: [Healeys] Engine running smoothly, now to install the interi=
or
>> =20
>> When I was restoring my BJ8 (about 6-8 years ago) I tried to compare vari=
ous thermal insulation efficiencies. I.E. "R" values. My primary concern was=
heat not sound. Many of the sources made it nearly impossible because they d=
o not publish this information. I just looked at Dynamat's website & in a qu=
ick search could not find any "R" value information. However, I did notice t=
hat they seem to be saying Dynamat is primarily for sound insulation & their=
Dynaliner is primarily for thermal insulation. Remember that anything you p=
ut between the heat source & the cockpit will act as an insulator. But some t=
hings will be better at it than other things. Dynaliner is a closed cell (ai=
r spaces) rubber material. That sounds similar to neoprene to me. By the way=
, it is the small air spaces that do most of the insulating, not the rubber.=
>> R values are often stated as btuh/inch. So, if something has an R value o=
f 8 btu/inch & the material is 1/2" thick it will actually have an R of 4.=20=
>> This is primarily discussing conduction. Heat is transferred by conductio=
n, convection & radiation.=20
>> The insulation in a Healey will have to be able to withstand relatively h=
igh temperatures, perhaps water & possibly some abrasion.=20
>> I am trying to point out that Dynamat appears to not be the best way to r=
educe heat if that is your goal & there is very limited space available for g=
ood thermal insulation so use the best available after you figure out what t=
hat is.=20
>> Gary Hodson
>> =20
>> =20
>> =20
>> -----Original Message-----
>> From: Frank Magnusson <fmags@cox.net>
>> To: healeys <healeys@autox.team.net>
>> Sent: Wed, Jan 23, 2019 5:07 pm
>> Subject: Re: [Healeys] Engine running smoothly, now to install the interi=
or
>>=20
>> Bob,
>> =20
>> Agree with other posts about replacing grommets, and sealing any gaps you=
find in the engine bay. Any opening will let heat in of course.
>> =20
>> I didn=E2=80=99t use any caulking when I installed the tunnel; just the f=
actory seals for the tunnel IIRC; But, it=E2=80=99s been awhile=E2=80=A6
>> =20
>> As far as heat insulation, I used a product called Refletix; can=E2=80=99=
t say it reduced the heat any or not; it=E2=80=99s still hot in the footwell=
. I think if I were doing it today, I=E2=80=99d use Dynamat. I just put so=
me in another vehicle as sound insulation and it works great for that and is=
supposed to reduce heat as well. I put the Refletix on the gearbox side of=
the tunnel as it=E2=80=99s rather thick, but I think I=E2=80=99d put Dynama=
t on the inside. It=E2=80=99s very thin (but heavy), so I don=E2=80=99t thi=
nk it would make the carpet look too thick. Not cheap, though. Alot of t=
he custom car shops use it; Foose, Kindigit, etc.
>> =20
>> BTW, Dynamat does make an entire kit for one of the big Healey=E2=80=99s;=
Don=E2=80=99t recall which one, but its on their website and should be a cu=
stom fit. Should work on all big Healey=E2=80=99s I would think.
>> =20
>> I need to pull my tunnel off as well to replace the gearshift boot; may p=
ut some Dynamat in there as long as I have it off.
>> =20
>> Hope this helps,
>> Frank
>> =E2=80=9965 BJ8
>> =20
>> <Now I am ready to install the interior with new heat insulation. What i=
s the recommended caulking compound to use when installing the tunnel? Is i=
t recommended to install heat insulation on the transmission side of the tun=
nel. If so, what to use, for example heavy duty 3M spray or?>
>> =20
>> =20
--Apple-Mail-5D7C61C5-D7E2-4AE2-A577-350D36D38961
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Content-Transfer-Encoding: quoted-printable
<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>On my BJ8, I just have "bare" painted f=
loors, and no underfelt. I</div><div id=3D"AppleMailSignature"> just ha=
ve the factory style fibrous cement heat shields under the floor (with an ai=
r gap) and the firewall engine bay ones. </div><div id=3D"AppleMailSign=
ature">I have heat wrapped extractors that have been on the car for 23 years=
, with a side exhaust, and I don't have any cockpit heat issues. </div>=
<div id=3D"AppleMailSignature">I don't actually understand what issue you me=
n are trying to solve by gluing 20 kg of sound deadening on the floor or an o=
pen Sportscar? </div><div id=3D"AppleMailSignature">Keep the heat out f=
irst. </div><div id=3D"AppleMailSignature">Out of the car. </div><=
div id=3D"AppleMailSignature">Sincerely. </div><div id=3D"AppleMailSign=
ature">Chris Dimmock</div><div id=3D"AppleMailSignature">Sydney Australia.&n=
bsp;</div><div id=3D"AppleMailSignature"><a href=3D"http://www.myaustinheale=
y.com">www.myaustinhealey.com</a> <br><br><br></div><div><br>On 25 Jan 2=
019, at 7:59 am, Richard Collins <<a href=3D"mailto:gonnagitcha90@hotmail=
.com">gonnagitcha90@hotmail.com</a>> wrote:<br><br></div><blockquote type=
=3D"cite">
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">
FWIW I used dynamat under my rugs, firewall, and trannie tunnel cover. Rarel=
y drive in the summer due to vapor lock issues in traffic but find neither h=
eat nor noise is an issue.<br>
<br>
<div dir=3D"ltr">Regards,
<div>Richard C</div>
<div>BN7 440</div>
</div>
<div dir=3D"ltr"><br>
On Jan 24, 2019, at 1:49 PM, Frank Magnusson <<a href=3D"mailto:fmags@cox=
.net">fmags@cox.net</a>> wrote:<br>
<br>
</div>
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<p class=3D"MsoNormal">Yes; you=E2=80=99re right; Dynaliner is their best pr=
oduct for thermal issues.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><b>From:</b> <a href=3D"mailto:warthodson@aol.com";>wa=
rthodson@aol.com</a> <<a href=3D"mailto:warthodson@aol.com";>warthodson@ao=
l.com</a>>
<br>
<b>Sent:</b> Thursday, January 24, 2019 10:17 AM<br>
<b>To:</b> <a href=3D"mailto:fmags@cox.net";>fmags@cox.net</a>; <a href=3D"ma=
ilto:healeys@autox.team.net">
healeys@autox.team.net</a><br>
<b>Subject:</b> Re: [Healeys] Engine running smoothly, now to install the in=
terior<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<div id=3D"yiv1297619435">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">When I was restoring my BJ8 (about 6-8 year=
s ago) I tried to compare various thermal insulation efficiencies. I.E. "R" v=
alues. My primary concern was heat not sound.
Many of the sources made it nearly impossible because they do not publish t=
his information. I just looked at Dynamat's website & in a quick search c=
ould not find any "R" value information. However, I did notice that they see=
m to be saying Dynamat is primarily
for sound insulation & their Dynaliner is primarily for thermal insulat=
ion. Remember that
<b>anything</b> you put between the heat source & the cockpit will act a=
s an insulator. But some things will be better at it than other things. Dyna=
liner is a closed cell (air spaces) rubber material. That sounds similar to n=
eoprene to me. By the way, it is
the small air spaces that do most of the insulating, not the rubber.<o:p></=
o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">R values are often stated as btuh/inch. So,=
if something has an R value of 8 btu/inch & the material is 1/2" thick i=
t will actually have an R of 4. <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">This is primarily discussing conduction. He=
at is transferred by conduction, convection & radiation. <o:p></o:p=
></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">The insulation in a Healey will have to be a=
ble to withstand relatively high temperatures, perhaps water & possibly s=
ome abrasion. <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">I am trying to point out that Dynamat appea=
rs to not be the best way to reduce heat if that is your goal & there is=
very limited space available for good thermal
insulation so use the best available after you figure out what that is.&nbs=
p;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">Gary Hodson<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><span style=3D"font-si=
ze:10.0pt;font-family:"Arial",sans-serif;color:black">-----Origina=
l Message-----<br>
From: Frank Magnusson <<a href=3D"mailto:fmags@cox.net";>fmags@cox.net</a>=
><br>
To: healeys <<a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team=
.net</a>><br>
Sent: Wed, Jan 23, 2019 5:07 pm<br>
Subject: Re: [Healeys] Engine running smoothly, now to install the interior<=
o:p></o:p></span></p>
<div id=3D"yiv1297619435yqt59580">
<div id=3D"yiv1297619435">
<div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">Bob,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">Agree with other posts about replacing grom=
mets, and sealing any gaps you find in the engine bay. Any opening wil=
l let heat in of course.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">I didn=E2=80=99t use any caulking when I in=
stalled the tunnel; just the factory seals for the tunnel IIRC; But, it=E2=80=
=99s been awhile=E2=80=A6<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">As far as heat insulation, I used a product=
called Refletix; can=E2=80=99t say it reduced the heat any or not; it=E2=80=
=99s still hot in the footwell. I think if I were doing it
today, I=E2=80=99d use Dynamat. I just put some in another vehicle as=
sound insulation and it works great for that and is supposed to reduce heat=
as well. I put the Refletix on the gearbox side of the tunnel as it=E2=
=80=99s rather thick, but I think I=E2=80=99d put Dynamat on the
inside. It=E2=80=99s very thin (but heavy), so I don=E2=80=99t think i=
t would make the carpet look too thick. Not cheap, though. =
Alot of the custom car shops use it; Foose, Kindigit, etc.<o:p></o:p>=
</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">BTW, Dynamat does make an entire kit for on=
e of the big Healey=E2=80=99s; Don=E2=80=99t recall which one, but its on th=
eir website and should be a custom fit. Should work on all
big Healey=E2=80=99s I would think.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">I need to pull my tunnel off as well to rep=
lace the gearshift boot; may put some Dynamat in there as long as I have it o=
ff.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">Hope this helps,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">Frank<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black">=E2=80=9965 BJ8<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"><Now I am ready to install the interior w=
ith new heat insulation. What is the recommended caulking compound to u=
se when installing the tunnel? Is it recommended
to install heat insulation on the transmission side of the tunnel. If=
so, what to use, for example heavy duty 3M spray or?><o:p></o:p></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"> <o:p></o:p></span></p>
</div>
</div>
<div id=3D"yiv1297619435DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2">
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ari=
al",sans-serif;color:black"><o:p> </o:p></span></p></div></div></d=
iv></div></div></div></div></div></div></div></blockquote></blockquote></bod=
y></html>=
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