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On this matter of choosing the proper thermostat for your car I fear that I a=
m becoming the saying on my favorite bumper sticker : =E2=80=9CI am schizoph=
renic, and so am I.=E2=80=9D
Lin
Sent from my iPhone
> On Sep 16, 2018, at 1:52 PM, Harold Manifold <manifold@telus.net> wrote:
>=20
> I tried to help myself but I have once again been drawn into a discussion a=
bout engine thermostats. As I read the posts the underlying questions are wh=
at is the best thermostat and do I have the right one? I will correct one Po=
ster who suggested the role of the thermostat was to control pressure in the=
cooling system. While thermostats may have an effect on pressure in the coo=
ling system that is the job of the radiator cap.
> =20
> I suggest the best thermostat has these features: fails in the open positi=
on i.e. coolant circulates through the radiator. You can get home with a coo=
l engine but not a hot one. Blocks circulation of coolant between the engine=
and radiator until the engine has reached its predetermined temperature. i.=
e. The thermostat fits the housing and seals when closed. The thermostat ful=
ly opens about 15-20 degrees above its rated temperature. The thermostat sho=
uld have a =E2=80=9Cjiggle pin=E2=80=9D or =E2=80=9Ccheck valve=E2=80=9D tha=
t allows trapped air in the cooling system to pass through the thermostat an=
d be released from the system.
> =20
> Do I have the right one? Based on old manuals I have seen there were two t=
emperature ratings for 3000 Healeys, Summer 70 Deg C/160 Deg F and Winter 86=
Deg C/185 Deg F. I believe the thinking behind the two thermostat approach w=
as to reduce boiling the radiator in summer and to make the heater work bett=
er in the winter. Depending on where you live and and the driving conditions=
may influence which end of the range you want to be at. If you live in Flor=
ida and/or drive in slow moving traffic I would suggest the 160 degree. Your=
cooling system will have more reserve when traffic slows. If you live in Ot=
tawa 185 is likely better as it is winter all the time. However, the most im=
portant factor is not opening temperature but does the thermostat properly c=
ontrol the coolant temperature. If you have a 160 degree thermostat and the c=
oolant temperature fluctuates between 160-180 then it is the right one. Like=
wise the 185 should stay between 185-205. It is most important for the cooli=
ng system to stay between the lower and upper temperatures. If the temperatu=
re is not between these two points then the cooling system is "not in contro=
l".
> =20
> Bottom line is if the cooling system is "in control" and you are happy wit=
h the way the car warms up you have the right thermostat.
> =20
> Harold
> =20
>=20
> From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of Linwood=
Rose
> Sent: Sunday, September 16, 2018 7:19 AM
> To: Rossm
> Cc: Forum Healeys
> Subject: Re: [Healeys] Thermostats
>=20
> I would like to go back to Steve Byers=E2=80=99 comment. I am not so much c=
oncerned about my car overheating. When the engine was rebuilt it was thorou=
ghly cleaned to get rid of all sludge. I run an aluminum radiator, have buil=
t and installed air ducting for improved flow. I do not have an electric fan=
.=20
>=20
> My problem was that my engine ran cool and would take quite a while to =E2=
=80=9Cwarm up.=E2=80=9D I think I was using a 165 degree (or thereabouts) no=
n-sleeved thermostat. Robert Shaw as I recall. So I wanted to get my engine u=
p to 185-190 degrees sooner. I went with one of the same AC sleeved thermost=
ats 82 degrees centigrade from Kees that Steve used. The engine seems to be m=
uch happier and gets to running temp more quickly.
>=20
> At least for my engine, a 160-165 degree thermostat keeps things cool too l=
ong. In a perfect world I would prefer David Nock=E2=80=99s bellows thermost=
at but with a 185-190 degree opening. Since that doesn=E2=80=99t seem to be a=
vailable I think I will stick with the AC unit and keep my eye on the temp. G=
auge.
>=20
> I am no authority on this. I am simply passing along my experience. Am I u=
nderstanding all of this correctly?=20
>=20
> Thanks,
> Lin
>=20
> Sent from my iPhone
>=20
>> On Sep 15, 2018, at 9:30 PM, Rossm <rvmaylor@shaw.ca> wrote:
>>=20
>> To be fair Michael, it is hot maybe three days a year in Canada?:) . I l=
eft Calgary yesterday for the Rendezvous and it was snowing already. First t=
ime the hood contraption on the BN6 has been up since last September. =20
>>=20
>> Sent from my iPhone
>>=20
>>> On Sep 15, 2018, at 10:50, Michael Salter <michael.salter@gmail.com> wro=
te:
>>>=20
>>> Well I have watched this discussion on sleeved thermostats for the last w=
eek but now I just have to say. When the sleeved thermostats went NLA, about=
45 years ago, we resorted to installing just plain old Stant 175 degree sta=
ts and guess what ... not one complaint or comment on running hotter or over=
heating and absolutely no sign of any symptoms of overheating on my own BJ8 e=
ven in the hottest of ambient temperatures. It just didn't happen!!! Just sa=
yin'. M =20
>>> From: Healeys <healeys-bounces@autox.team.net> on behalf of Rossm <rvmay=
lor@shaw.ca>
>>> Sent: Saturday, September 15, 2018 10:35:32 AM
>>> To: Forum Healeys
>>> Subject: [Healeys] Thermostats
>>> =20
>>> Three sleeved thermostats, one on the right 160 degrees, middle no idea,=
left is a Smiths x85002s/86 (180F) and has failed open.=20
>>>=20
>>> _______________________________________________
>>> Support Team.Net http://www.team.net/donate.html
>>> Suggested annual donation $12.75
>>>=20
>>> Archive: http://www.team.net/pipermail/healeys
>>>=20
>>> Healeys@autox.team.net
>>> http://autox.team.net/mailman/listinfo/healeys
>>>=20
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/rvmayl=
or@shaw.ca
>>>=20
>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation $12.75
>>=20
>> Archive: http://www.team.net/pipermail/healeys
>>=20
>> Healeys@autox.team.net
>> http://autox.team.net/mailman/listinfo/healeys
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/linwood=
rose@mac.com
>>=20
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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">On this matter of choosing the proper therm=
ostat for your car I fear that I am becoming the saying on my favorite bumpe=
r sticker : =E2=80=9CI am <span style=3D"background-color: rgba(255, 25=
5, 255, 0);">schizophrenic, and so am I.=E2=80=9D</span><div>Lin<br><br><div=
id=3D"AppleMailSignature">Sent from my iPhone</div><div><br>On Sep 16, 2018=
, at 1:52 PM, Harold Manifold <<a href=3D"mailto:manifold@telus.net";>mani=
fold@telus.net</a>> wrote:<br><br></div><blockquote type=3D"cite"><div>
<meta content=3D"text/html; charset=3Dus-ascii" http-equiv=3D"Content-Type">=
<meta name=3D"GENERATOR" content=3D"MSHTML 11.00.10570.1001">
<div dir=3D"ltr" align=3D"left"><span class=3D"436134816-16092018"><font col=
or=3D"#0000ff" size=3D"2" face=3D"Arial">I tried to help myself but I have o=
nce again been drawn into a=20
discussion about engine thermostats. As I read the posts the underlying=20
questions are what is the best thermostat and do I have the right one? I wil=
l=20
correct one Poster who suggested the role of the thermostat was to control=20=
pressure in the cooling system. While thermostats may have an effect on pres=
sure=20
in the cooling system that is the job of the radiator cap. </font></span></d=
iv>
<div dir=3D"ltr" align=3D"left"><span class=3D"436134816-16092018"><font col=
or=3D"#0000ff" size=3D"2" face=3D"Arial"></font></span> </div>
<div dir=3D"ltr" align=3D"left"><font face=3D"Arial"><font size=3D"2"><font c=
olor=3D"#0000ff"><span class=3D"436134816-16092018">I suggest the best therm=
ostat has these features: fails=20
in the open position i.e. coolant circulates through the radiator. You can g=
et=20
home with a cool engine but not a hot one. Blocks circulation of coolant bet=
ween=20
the engine and radiator until the engine has reached its predetermined=20
temperature. i.e. The thermostat fits the housing and seals when closed.=20
</span><span class=3D"436134816-16092018">The thermostat fully opens about 1=
5-20=20
degrees above its rated temperature. The thermostat should have a =E2=80=9Cj=
iggle pin=E2=80=9D=20
or =E2=80=9Ccheck valve=E2=80=9D that allows trapped air in the cooling syst=
em to pass through=20
the thermostat and be released from the=20
system.</span></font></font></font></div>
<div dir=3D"ltr" align=3D"left"><font color=3D"#0000ff" size=3D"2" face=3D"A=
rial"><span class=3D"436134816-16092018"></span></font> </div>
<div dir=3D"ltr" align=3D"left"><font color=3D"#0000ff" size=3D"2" face=3D"A=
rial"><span class=3D"436134816-16092018">Do I have the right one? Based on o=
ld manuals I have=20
seen there were two temperature ratings for 3000 Healeys, Summer 70 Deg C/16=
0=20
Deg F and Winter 86 Deg C/185 Deg F. I believe the thinking behind the two=20=
thermostat approach was to reduce boiling the radiator in summer and to make=
the=20
heater work better in the winter. Depending on where you live and and=20
the driving conditions may influence which end of the range you want to=
be=20
at. If you live in Florida and/or drive in slow moving traffic I would sugge=
st=20
the 160 degree. Your cooling system will have more reserve when traffic=
=20
slows. If you live in Ottawa 185 is likely better as it is winter all the ti=
me.=20
However, the most important factor is not opening temperature but does t=
he=20
thermostat properly control the coolant temperature. If you have a 160 degre=
e=20
thermostat and the coolant temperature fluctuates between 160-180 then it is=
the=20
right one. Likewise the 185 should stay between 185-205. It is most importan=
t=20
for the cooling system to stay between the lower and upper temperatures. If t=
he=20
temperature is not between these two points then the cooling system is "not i=
n=20
control".</span></font></div>
<div dir=3D"ltr" align=3D"left"><font color=3D"#0000ff" size=3D"2" face=3D"A=
rial"><span class=3D"436134816-16092018"></span></font> </div>
<div dir=3D"ltr" align=3D"left"><font color=3D"#0000ff" size=3D"2" face=3D"A=
rial"><span class=3D"436134816-16092018">Bottom line is if the cooling syste=
m is "in control"=20
and you are happy with the way the car warms up you have the right=20
thermostat.</span></font></div>
<div dir=3D"ltr" align=3D"left"><font color=3D"#0000ff" size=3D"2" face=3D"A=
rial"><span class=3D"436134816-16092018"></span></font> </div>
<div dir=3D"ltr" align=3D"left"><font face=3D"Arial"><font size=3D"2"><font c=
olor=3D"#0000ff"><span class=3D"436134816-16092018">Harold</span></font></fo=
nt></font></div>
<div dir=3D"ltr" align=3D"left"><span class=3D"436134816-16092018"><font col=
or=3D"#0000ff" size=3D"2" face=3D"Arial"></font></span> </div><font siz=
e=3D"2" face=3D"Arial"></font><br>
<div lang=3D"en-us" class=3D"OutlookMessageHeader" dir=3D"ltr" align=3D"left=
">
<hr tabindex=3D"-1">
<font size=3D"2" face=3D"Tahoma"><b>From:</b> Healeys=20
[<a href=3D"mailto:healeys-bounces@autox.team.net";>mailto:healeys-bounces@au=
tox.team.net</a>] <b>On Behalf Of </b>Linwood=20
Rose<br><b>Sent:</b> Sunday, September 16, 2018 7:19 AM<br><b>To:</b>=20
Rossm<br><b>Cc:</b> Forum Healeys<br><b>Subject:</b> Re: [Healeys]=20
Thermostats<br></font><br></div>
<div></div>I would like to go back to Steve Byers=E2=80=99 comment. I am not=
so much=20
concerned about my car overheating. When the engine was rebuilt it was=20
thoroughly cleaned to get rid of all sludge. I run an aluminum radiator, hav=
e=20
built and installed air ducting for improved flow. I do not have an electric=
=20
fan.
<div><br></div>
<div>My problem was that my engine ran cool and would take quite a while to=20=
=E2=80=9Cwarm up.=E2=80=9D I think I was using a 165 degree (or thereabouts)=
non-sleeved=20
thermostat. Robert Shaw as I recall. So I wanted to get my engine up to 185-=
190=20
degrees sooner. I went with one of the same AC sleeved thermostats 82 degree=
s=20
centigrade from Kees that Steve used. The engine seems to be much happier an=
d=20
gets to running temp more quickly.</div>
<div><br></div>
<div>At least for my engine, a 160-165 degree thermostat keeps things cool t=
oo=20
long. In a perfect world I would prefer David Nock=E2=80=99s bellows thermos=
tat but with=20
a 185-190 degree opening. Since that doesn=E2=80=99t seem to be available I t=
hink I will=20
stick with the AC unit and keep my eye on the temp. Gauge.</div>
<div><br></div>
<div>I am no authority on this. I am simply passing along my experience. Am I=
=20
understanding all of this correctly? </div>
<div><br></div>
<div>Thanks,</div>
<div>Lin<br><br>
<div id=3D"AppleMailSignature">Sent from my iPhone</div>
<div><br>On Sep 15, 2018, at 9:30 PM, Rossm <<a href=3D"mailto:rvmaylor@s=
haw.ca">rvmaylor@shaw.ca</a>> wrote:<br><br></div>
<blockquote type=3D"cite">
<div>To be fair Michael, it is hot maybe three days a year in Canada?:) .=20=
I left Calgary yesterday for the Rendezvous and it was snowing alrea=
dy.=20
First time the hood contraption on the BN6 has been up since last Septembe=
r.=20
<br><br>
<div id=3D"AppleMailSignature">Sent from my iPhone</div>
<div><br>On Sep 15, 2018, at 10:50, Michael Salter <<a href=3D"mailto:m=
ichael.salter@gmail.com">michael.salter@gmail.com</a>>=20
wrote:<br><br></div>
<blockquote type=3D"cite">
<div>
<meta name=3D"Generator" content=3D"Microsoft Exchange Server"><!-- conv=
erted from text -->
<style>.EmailQuote {
PADDING-LEFT: 4pt; MARGIN-LEFT: 1pt; BORDER-LEFT: #800000 2px solid=
}
</style>
<div>Well I have watched this discussion on sleeved thermostats for the l=
ast=20
week but now I just have to say. When the sleeved thermostats went NLA,=20=
about 45 years ago, we resorted to installing just plain old Stant 175=20=
degree stats and guess what ... not one complaint or comment on running=20=
hotter or overheating and absolutely no sign of any symptoms of overheat=
ing=20
on my own BJ8 even in the hottest of ambient temperatures. It just didn'=
t=20
happen!!! Just sayin'. M=20
<hr tabindex=3D"-1" style=3D"WIDTH: 98%; DISPLAY: inline-block">
<div id=3D"x_divRplyFwdMsg" dir=3D"ltr"><font style=3D"FONT-SIZE: 11pt" c=
olor=3D"#000000" face=3D"Calibri, sans-serif"><b>From:</b> Healeys <<a hr=
ef=3D"mailto:healeys-bounces@autox.team.net";>healeys-bounces@autox.team.net<=
/a>>=20
on behalf of Rossm <<a href=3D"mailto:rvmaylor@shaw.ca";>rvmaylor@shaw=
.ca</a>><br><b>Sent:</b>=20
Saturday, September 15, 2018 10:35:32 AM<br><b>To:</b> Forum=20
Healeys<br><b>Subject:</b> [Healeys] Thermostats</font>=20
<div> </div></div></div><font size=3D"2"><span style=3D"FONT-SIZE: 1=
1pt">
<div class=3D"PlainText">Three sleeved thermostats, one on the right 160=
=20
degrees, middle no idea, left is a Smiths x85002s/86 (180F) and ha=
s=20
failed open. <br><br></div></span></font></div></blockquote>
<blockquote type=3D"cite">
<div><span>_______________________________________________</span><br><sp=
an>Support=20
<a href=3D"http://Team.Net";>Team.Net</a> <a href=3D"http://www.team.net/=
donate.html">http://www.team.net/donate.html</a></span><br><span>Suggested=20=
annual donation $12.75</span><br><span></span><br><span>Archive: <=
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il/healeys</a></span><br><span></span><br><span><a href=3D"mailto:Healeys@au=
tox.team.net">Healeys@autox.team.net</a></span><br><span><a href=3D"http://a=
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<br><span></span><br></div></blockquote></div></blockquote>
<blockquote type=3D"cite">
<div><span>_______________________________________________</span><br><span=
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