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Re: [Healeys] Thermostats

To: "'i erbs'" <eyera3000@gmail.com>, "'Bob Spidell'" <bspidell@comcast.net>
Subject: Re: [Healeys] Thermostats
From: "John Rowe" <john@jtkarowe.com.au>
Date: Sat, 15 Sep 2018 06:58:17 +1000
Cc: 'Ahealey help' <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAPAC+V6pGpcQ53C8ye+wu7xdis34UCKJ9h52JMQ0sBfx9zLipg@mail.gmail.com> <CAPAC+V5ZEy8r=RiKc1x7Sism4iGisW1Tn8o7BDiQJcaKYSnDkQ@mail.gmail.com> <CAPAC+V4__txJNMPDqZuNYEZythrRYOM+y2VnMxDueTP4+Tq2iA@mail.gmail.com> <CAPAC+V4QWnaXA3Bgiw36SbKzK3fZnrGXiu0wiOwOBPLgCtRzpA@mail.gmail.com> <CAPAC+V68J6weA474ysvpeyee4j+Qck+4mnSiEpeRq8OunLH=fQ@mail.gmail.com> <CAPAC+V4150HNfYL3COov0WsBF+P3rfrO+qQHkVX0tL5PzNN68A@mail.gmail.com> <CAPAC+V5J9Y7uq6Q=XCLUvdWPH+NORqpbmF017qTGFBLJsZPm0A@mail.gmail.com> <CAPAC+V7GsdTmcW_PUEq-6_zpKZzs3t0sm0ndwpnJwBXAeXK7mQ@mail.gmail.com> <CAPAC+V5OFkwLhk3usWPsBkWGdbUdDAQydq6fnNj50bANZWY+Rg@mail.gmail.com> <CAPAC+V4d3OnX-XYi1F_CbRR_M9oq_5XV7gKypbXPof0b4Nd46A@mail.gmail.com> <CAPAC+V5YRC-foBCE5zFix=0oezo-oQH5R3VAHfvBxkOTmnu1CQ@mail.gmail.com> <CAPAC+V6ywraqyfNfYGQ5unG_YX_5EyorSzw6UXhJRmp32_yHxQ@mail.gmail.com> <CAPAC+V4MwMcmryoPcZpMVNwK5N85JyVqPWq3nzNnbwCnr-ygDw@mail.gmail.com> <D64BDA78E881479D89764D868E5E9366@WINDOWST93OFP9> <7d34b0f5-05bc-17b5-e7f8-9d1b931a3750@comcast.net> <C ABXhz8-0J3bUXse8gqOKJ_zNZQpHFUoEKHQvXNrgf+BpUnjnDA@mail.gmail.com>
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Ira, get the sleeved t/stat from David Knock- they work properly. You =
only think you have no issues with the ordinary one, as you do not know =
what is going on inside the engine.

John Rowe

Qld Australia

=20

From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of i =
erbs
Sent: Friday, 14 September 2018 9:08 AM
To: Bob Spidell
Cc: Ahealey help
Subject: Re: [Healeys] Thermostats

=20

I had a nos sleeved Stat snd it failed just about closed.  Caused =
overheating. Been using a non sleeved one with no issues.=20

Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone

=20

On Thu, Sep 13, 2018, 3:42 PM Bob Spidell <bspidell@comcast.net> wrote:

One other consideration:  I have heard--note: hearsay--that the OEM =
sleeved stats are of the 'fail closed' variety.  Have seen modern ones =
called 'fail open' or, even 'failsafe.'

FWIW.

Bob

=20

On 9/11/2018 3:44 PM, Roger Grace wrote:

Steve,

Yes agree with your take on the 160 F thermostats. The only possible =
benefit is that if you start with a lower coolant temp, when you hit =
traffic, it will take longer before the dreaded over temp zone is =
approached.

As an aside, I have installed an oil temp gauge; very useful and a =
reminder just how long the engine (not coolant) takes to get up to temp. =
Trying to get in the habit of not going over 2000 RPM till OT is about =
120F =E2=80=93 often another 15-20 mins after the thermostat opens.=20

rg

=20

From: BJ8Healeys=20

Sent: Monday, September 10, 2018 12:44 PM

To: 'healeys'=20

Subject: Re: [Healeys] Thermostats

=20

Fred, I personally believe a 160-deg. F thermostat used in an effort to =
"cool down" a Healey is useless.  A thermostat responds only to the =
temperature of the coolant flowing through it by opening up to increase =
coolant flow, and once it is open all the way at 160+, it is out of the =
loop and can't open further to cool more.  I am on the NC coast where =
winters are mild.  I once tried a 160 (non-sleeved) because I had one =
that someone gave me.  My BJ8 ran so cold that winter that I actually =
had to block part of the radiator to raise it to anywhere near normal.  =
Up there in the NC mountains, that would be even more of a problem for =
you.

I use a 187 F (86 C) New Old Stock AC sleeved thermostat (AC part number =
1572320) that I was able to score from lister Kees Oudesluijs.  I =
installed it along with an upgraded core in the radiator at the same =
time, so I can't really say how much improvement the thermostat alone =
did; but since the modification my car runs consistently at 170 - 180 in =
the hot summers of the NC coast, except when in stop-and-go traffic when =
it might make it to 190 or a bit above.  In winter, it runs at 160 - =
170.  I can see the sleeve operate as the car warms up because the gauge =
will cycle between 160 and 190 until coolant temperature stabilizes.  =
That can take up to 50 miles.

A friend placed an order later with Kees for several of the 190 F =
sleeved thermostats.  I got one of those as a spare.  Don't know if he =
has any left, or can get more.  As far as I know, the only sleeved =
thermostats available from the usual suspects are 160s and I wouldn't =
waste my money on them.

I just Googled the AC part number and came up with this source:

https://tinyurl.com/y9c6n53h

Unfortunately, it does not post to the USA (but on the bright side, it =
offers free shipping!).  Maybe you could work out a deal with a UK =
lister to buy one for you and ship it to you.  =C2=A319.99 =3D $26.04=20

=20

Steve Byers

HBJ8L/36666

BJ8 Registry

AHCA Delegate at Large

Havelock, NC =20

=20

=20

=20

=20

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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-AU link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Ira, get the sleeved t/stat from David Knock- they work properly. You =
only think you have no issues with the ordinary one, as you do not know =
what is going on inside the engine.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>John Rowe<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Qld Australia<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Healeys =
[mailto:healeys-bounces@autox.team.net] <b>On Behalf Of </b>i =
erbs<br><b>Sent:</b> Friday, 14 September 2018 9:08 AM<br><b>To:</b> Bob =
Spidell<br><b>Cc:</b> Ahealey help<br><b>Subject:</b> Re: [Healeys] =
Thermostats<o:p></o:p></span></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>I had a nos sleeved Stat snd it failed =
just about closed.&nbsp; Caused overheating. Been using a non sleeved =
one with no issues.&nbsp;<o:p></o:p></p><div><p class=3DMsoNormal>Ira =
Erbs<br>Portland, OR<br>typos and artifacts are the fault of my =
phone<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p class=3DMsoNormal>On =
Thu, Sep 13, 2018, 3:42 PM Bob Spidell &lt;<a =
href=3D"mailto:bspidell@comcast.net";>bspidell@comcast.net</a>&gt; =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-right:0cm'><div><p>One other =
consideration:&nbsp; I have heard--note: hearsay--that the OEM sleeved =
stats are of the 'fail closed' variety.&nbsp; Have seen modern ones =
called 'fail open' or, even =
'failsafe.'<o:p></o:p></p><p>FWIW.<o:p></o:p></p><p>Bob<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>On =
9/11/2018 3:44 PM, Roger Grace wrote:<o:p></o:p></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:black'>Steve,<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:black'>Yes agree with your take on the 160 F thermostats. The =
only possible benefit is that if you start with a lower coolant temp, =
when you hit traffic, it will take longer before the dreaded over temp =
zone is approached.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:black'>As an aside, I have installed an oil temp gauge; very =
useful and a reminder just how long the engine (not coolant) takes to =
get up to temp. Trying to get in the habit of not going over 2000 RPM =
till OT is about 120F =E2=80=93 often another 15-20 mins after the =
thermostat opens. <o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:black'>rg<o:p></o:p></span></p></div><div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p></div><div><div><p class=3DMsoNormal =
style=3D'background:whitesmoke'><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
From:</span></b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
 BJ8Healeys <o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:whitesmoke'><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
Sent:</span></b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
 Monday, September 10, 2018 12:44 PM<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal style=3D'background:whitesmoke'><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
To:</span></b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
 'healeys' <o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:whitesmoke'><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
Subject:</span></b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
 Re: [Healeys] =
Thermostats<o:p></o:p></span></p></div></div></div><div><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri","sans-serif";color:black'>&nbsp;<o:p></o:p=
></span></p></div></div><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans =
MS";color:#002060'>Fred, I personally believe a 160-deg. F thermostat =
used in an effort to &quot;cool down&quot; a Healey is useless.&nbsp; A =
thermostat responds only to the temperature of the coolant flowing =
through it by opening up to increase coolant flow, and once it is open =
all the way at 160+, it is out of the loop and can't open further to =
cool more.&nbsp; I am on the NC coast where winters are mild.&nbsp; I =
once tried a 160 (non-sleeved) because I had one that someone gave =
me.&nbsp; My BJ8 ran so cold that winter that I actually had to block =
part of the radiator to raise it to anywhere near normal.&nbsp; Up there =
in the NC mountains, that would be even more of a problem for =
you.</span><span style=3D'color:black'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans MS";color:#002060'>I =
use a 187 F (86 C) New Old Stock AC sleeved thermostat (AC part number =
1572320) that I was able to score from lister Kees Oudesluijs.&nbsp; I =
installed it along with an upgraded core in the radiator at the same =
time, so I can't really say how much improvement the thermostat alone =
did; but since the modification my car runs consistently at 170 - 180 in =
the hot summers of the NC coast, except when in stop-and-go traffic when =
it might make it to 190 or a bit above.&nbsp; In winter, it runs at 160 =
- 170.&nbsp; I can see the sleeve operate as the car warms up because =
the gauge will cycle between 160 and 190 until coolant temperature =
stabilizes.&nbsp; That can take up to 50 miles.</span><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans MS";color:#002060'>A =
friend placed an order later with Kees for several of the 190 F sleeved =
thermostats.&nbsp; I got one of those as a spare.&nbsp; Don't know if he =
has any left, or can get more.&nbsp; As far as I know, the only sleeved =
thermostats available from the usual suspects are 160s and I wouldn't =
waste my money on them.</span><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans MS";color:#002060'>I =
just Googled the AC part number and came up with this =
source:</span><span style=3D'color:black'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans MS";color:#002060'><a =
href=3D"https://tinyurl.com/y9c6n53h"; =
target=3D"_blank">https://tinyurl.com/y9c6n53h</a></span></b><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans =
MS";color:#002060'>Unfortunately, it does not post to the USA (but on =
the bright side, it offers free shipping!).&nbsp; Maybe you could work =
out a deal with a UK lister to buy one for you and ship it to you.&nbsp; =
=C2=A319.99 =3D $26.04 </span><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:black'>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans =
MS";color:#002060'>Steve Byers</span><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans =
MS";color:#002060'>HBJ8L/36666</span><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans MS";color:#002060'>BJ8 =
Registry</span><span style=3D'color:black'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans =
MS";color:#002060'>AHCA Delegate at Large</span><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:11.0pt;font-family:"Comic Sans =
MS";color:#002060'>Havelock, NC&nbsp; </span><span =
style=3D'color:black'><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:black'>&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:black'><o:p>&nbsp;</o:p></span></p></div></div></div></div=
><pre><o:p>&nbsp;</o:p></pre></blockquote><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>__________________________________________=
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