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Re: [Healeys] Thermostats

To: "BJ8Healeys" <sbyers@ec.rr.com>, "'healeys'" <Healeys@autox.team.net>
Subject: Re: [Healeys] Thermostats
From: "Roger Grace" <roggrace@telus.net>
Date: Tue, 11 Sep 2018 15:44:25 -0700
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
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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> zhuNfe3hcivIDzhuPf0MGH
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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

From: BJ8Healeys=20
Sent: Monday, September 10, 2018 12:44 PM
To: 'healeys'=20
Subject: Re: [Healeys] Thermostats

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

From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of Fred =
Wescoe
Sent: Sunday, September 09, 2018 8:38 PM
To: healeys
Subject: [Healeys] Thermostats

=20

Listers,

=20

I have researched what I can of the archives and other sources and am =
still puzzled.  I cannot find any real answers and direction on the =
question of which thermostat I should use in my 66 BJ8.  Some answers =
indicate a sleeved thermostat and others say no sleeve.  Some say a =
short sleeve and others say only the long sleeve works.  Some answers =
indicate using a 160 degree thermostat while others propose 180 degrees =
and even 190 degrees.  Some even say the Moss sleeved thermostat does =
not work.

=20

I am in North Carolina and drive the car most of the year.  Right now =
the car has a non sleeved 190 degree thermostat.  The car starts and =
needs to warm up, at idle, to almost full temp before it runs with no =
problems.  Otherwise it spits, coughs and has no power.  The car runs at =
about 190 degres except when I drive the mountains and of course stop =
and go traffic.

=20

What is the consensus of thoughts as we approach colder weather?  And =
what are the sources and manufacturer for a good thermostat?

=20

Thanks for the help,

=20

Fred

66BJ8


     Virus-free. www.avg.com =20



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<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Comic Sans MS'; COLOR: =
#000000">
<DIV>Steve,</DIV>
<DIV>Yes agree with your take on the 160 F thermostats. The only =
possible=20
benefit is that if you start with a lower coolant temp, when you hit =
traffic, it=20
will take longer before the dreaded over temp zone is approached.</DIV>
<DIV>As an aside, I have installed an oil temp gauge; very useful and a =
reminder=20
just how long the engine (not coolant) takes to get up to temp. Trying =
to get in=20
the habit of not going over 2000 RPM till OT is about 120F =E2=80=93 =
often another 15-20=20
mins after the thermostat opens. </DIV>
<DIV>rg</DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A=20
title=3Dsbyers@ec.rr.com>BJ8Healeys</A> </DIV>
<DIV><B>Sent:</B> Monday, September 10, 2018 12:44 PM</DIV>
<DIV><B>To:</B> <A title=3DHealeys@autox.team.net>'healeys'</A> </DIV>
<DIV><B>Subject:</B> Re: [Healeys] Thermostats</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV class=3DWordSection1>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>Fred, I=20
personally believe a 160-deg. F thermostat used in an effort to "cool =
down" a=20
Healey is useless.&nbsp; A thermostat responds only to the temperature =
of the=20
coolant flowing through it by opening up to increase coolant flow, and =
once it=20
is open all the way at 160+, it is out of the loop and can't open =
further to=20
cool more.&nbsp; I am on the NC coast where winters are mild.&nbsp; I =
once tried=20
a 160 (non-sleeved) because I had one that someone gave me.&nbsp; My BJ8 =
ran so=20
cold that winter that I actually had to block part of the radiator to =
raise it=20
to anywhere near normal.&nbsp; Up there in the NC mountains, that would =
be even=20
more of a problem for you.<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>I use a=20
187 F (86 C) New Old Stock AC sleeved thermostat (AC part number =
1572320) that I=20
was able to score from lister Kees Oudesluijs.&nbsp; I installed it =
along with=20
an upgraded core in the radiator at the same time, so I can't really say =
how=20
much improvement the thermostat alone did; but since the modification my =
car=20
runs consistently at 170 - 180 in the hot summers of the NC coast, =
except when=20
in stop-and-go traffic when it might make it to 190 or a bit =
above.&nbsp; In=20
winter, it runs at 160 - 170.&nbsp; I can see the sleeve operate as the =
car=20
warms up because the gauge will cycle between 160 and 190 until coolant=20
temperature stabilizes.&nbsp; That can take up to 50=20
miles.<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>A friend=20
placed an order later with Kees for several of the 190 F sleeved=20
thermostats.&nbsp; I got one of those as a spare.&nbsp; Don't know if he =
has any=20
left, or can get more.&nbsp; As far as I know, the only sleeved =
thermostats=20
available from the usual suspects are 160s and I wouldn't waste my money =
on=20
them.<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>I just=20
Googled the AC part number and came up with this =
source:<o:p></o:p></SPAN></P>
<P class=3DMsoNormal><B><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'><A=20
href=3D"https://tinyurl.com/y9c6n53h";>https://tinyurl.com/y9c6n53h</A><o:=
p></o:p></SPAN></B></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>Unfortunately,=20
it does not post to the USA (but on the bright side, it offers free=20
shipping!).&nbsp; Maybe you could work out a deal with a UK lister to =
buy one=20
for you and ship it to you.&nbsp; =C2=A319.99 =3D $26.04 </SPAN><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'><o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>Steve=20
Byers</SPAN><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: =
#002060'><o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>HBJ8L/36666</SPAN><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: =
#002060'><o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>BJ8=20
Registry</SPAN><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: =
#002060'><o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>AHCA=20
Delegate at Large</SPAN><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: =
#002060'><o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'>Havelock,=20
NC&nbsp; </SPAN><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: =
#002060'><o:p></o:p></SPAN></P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: =
#002060'><o:p></o:p></SPAN>&nbsp;</P>
<P class=3DMsoNormal><SPAN=20
style=3D'FONT-SIZE: 11pt; FONT-FAMILY: "Comic Sans MS"; COLOR: =
#002060'><o:p></o:p></SPAN>&nbsp;</P>
<DIV=20
style=3D"BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; =
BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0in; PADDING-TOP: 3pt; =
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<P class=3DMsoNormal><B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: =
"Tahoma","sans-serif"'>From:</SPAN></B><SPAN=20
style=3D'FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"'> Healeys=20
[mailto:healeys-bounces@autox.team.net] <B>On Behalf Of </B>Fred=20
Wescoe<BR><B>Sent:</B> Sunday, September 09, 2018 8:38 PM<BR><B>To:</B>=20
healeys<BR><B>Subject:</B> [Healeys] =
Thermostats<o:p></o:p></SPAN></P></DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P>
<DIV>
<P class=3DMsoNormal>Listers,<o:p></o:p></P>
<DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P></DIV>
<DIV>
<P class=3DMsoNormal>I have researched what I can of the archives and =
other=20
sources and am still puzzled.&nbsp; I cannot find any real answers and =
direction=20
on the question of which thermostat I should use in my 66 BJ8.&nbsp; =
Some=20
answers indicate a sleeved thermostat and others say no sleeve.&nbsp; =
Some say a=20
short sleeve and others say only the long sleeve works.&nbsp; Some =
answers=20
indicate using a 160 degree thermostat while others propose 180 degrees =
and even=20
190 degrees.&nbsp; Some even say the Moss sleeved thermostat does not=20
work.<o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P></DIV>
<DIV>
<P class=3DMsoNormal>I am in North Carolina and drive the car most of =
the=20
year.&nbsp; Right now the car has a non sleeved 190 degree =
thermostat.&nbsp; The=20
car starts and needs to warm up, at idle, to almost full temp before it =
runs=20
with no problems.&nbsp; Otherwise it spits, coughs and has no =
power.&nbsp; The=20
car runs at about 190 degres except when I drive the mountains and of =
course=20
stop and go traffic.<o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P></DIV>
<DIV>
<P class=3DMsoNormal>What is the consensus of thoughts as we approach =
colder=20
weather?&nbsp; And what are the sources and manufacturer for a good=20
thermostat?<o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P></DIV>
<DIV>
<P class=3DMsoNormal>Thanks for the help,<o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><o:p></o:p>&nbsp;</P></DIV>
<DIV>
<P class=3DMsoNormal>Fred<o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal>66BJ8<o:p></o:p></P></DIV></DIV></DIV>
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