--===============4489862907250397292==
Content-Language: en-US
boundary="_000_DM6PR07MB453816FBC09E69BB03FFC1D7A5130DM6PR07MB4538namp_"
--_000_DM6PR07MB453816FBC09E69BB03FFC1D7A5130DM6PR07MB4538namp_
Content-Transfer-Encoding: quoted-printable
If I remember correctly In northern Minnesota there were 9 months of winter=
and 3 months of tough sledding.
________________________________
From: Healeys <healeys-bounces@autox.team.net> on behalf of Robert Duquette=
<robert.duquette@me.com>
Sent: Wednesday, September 19, 2018 7:03:26 PM
To: Harold Manifold
Cc: 'Forum Healeys'
Subject: Re: [Healeys] Thermostats
I beg to differ. ;) We have 2 seasons in Ottawa (ON Canada). Winter and =
'road construction'.
( Others agree that we have 2 seasons, but name them differently. "Too Hot"=
and "Too Cold". )
This summer was particularly hot, with high humidity.
Month starting on Maximum
Sep 2018 32.0 =B0C
Aug 2018 32.8 =B0C
Jul 2018 36.0 =B0C
Jun 2018 33.6 =B0C
May 2018 29.8 =B0C
This seems to think that we have 4 seasons???
https://en.wikipedia.org/wiki/Ottawa#Climate
Robert
55 BN1
On Sep 16, 2018, at 02:44 PM, Harold Manifold <manifold@telus.net> wrote:
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 w=
hat is the best thermostat and do I have the right one? I will correct one =
Poster 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=
cooling system that is the job of the radiator cap.
I suggest the best thermostat has these features: fails in the open positio=
n 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 engin=
e and radiator until the engine has reached its predetermined temperature. =
i.e. The thermostat fits the housing and seals when closed. The thermostat =
fully opens about 15-20 degrees above its rated temperature. The thermostat=
should have a =93jiggle pin=94 or =93check valve=94 that allows trapped ai=
r in the cooling system to pass through the thermostat and be released from=
the system.
Do I have the right one? Based on old manuals I have seen there were two te=
mperature 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=
was to reduce boiling the radiator in summer and to make the heater work b=
etter in the winter. Depending on where you live and and the driving condit=
ions may influence which end of the range you want to be at. If you live in=
Florida 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 liv=
e in Ottawa 185 is likely better as it is winter all the time. However, the=
most important factor is not opening temperature but does the thermostat p=
roperly control the coolant temperature. If you have a 160 degree thermosta=
t and the coolant temperature fluctuates between 160-180 then it is the rig=
ht one. Likewise the 185 should stay between 185-205. It is most important =
for the cooling system to stay between the lower and upper temperatures. If=
the temperature is not between these two points then the cooling system is=
"not in control".
Bottom line is if the cooling system is "in control" and you are happy with=
the way the car warms up you have the right thermostat.
Harold
--_000_DM6PR07MB453816FBC09E69BB03FFC1D7A5130DM6PR07MB4538namp_
Content-Transfer-Encoding: quoted-printable
<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
<style type=3D"text/css" style=3D"display:none;"><!-- P {margin-top:0;margi=
n-bottom:0;} --></style>
</head>
<body dir=3D"ltr">
<div id=3D"divtagdefaultwrapper" style=3D"font-size:12pt;color:#000000;font=
-family:Calibri,Helvetica,sans-serif;" dir=3D"ltr">
<p style=3D"margin-top:0;margin-bottom:0">If I remember correctly In n=
orthern Minnesota there were 9 months of winter and 3 months of tough sledd=
ing.</p>
</div>
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Healeys <healeys-b=
ounces@autox.team.net> on behalf of Robert Duquette <robert.duquette@=
me.com><br>
<b>Sent:</b> Wednesday, September 19, 2018 7:03:26 PM<br>
<b>To:</b> Harold Manifold<br>
<b>Cc:</b> 'Forum Healeys'<br>
<b>Subject:</b> Re: [Healeys] Thermostats</font>
<div> </div>
</div>
<meta content=3D"text/html; charset=3Dutf-8">
<div>
<div>I beg to differ. ;) We have 2 seasons in Ottawa (ON Canada=
). Winter and 'road construction'.<br>
</div>
<div>( Others agree that we have 2 seasons, but name them differently. &quo=
t;Too Hot" and "Too Cold". )<br>
</div>
<div><br>
</div>
<div>This summer was particularly hot, with high humidity.<br>
</div>
<div>Month starting on Maximum <br>
Sep 2018 32.0=
=B0C <br>
Aug 2018 32.8=
=B0C <br>
Jul 2018  =
; 36.0 =B0C <br>
Jun 2018 =
33.6 =B0C <br>
May 2018 =
29.8 =B0C</div>
<div><br>
</div>
<div>This seems to think that we have 4 seasons???<br>
</div>
<div><a href=3D"https://en.wikipedia.org/wiki/Ottawa#Climate";>https://en.wi=
kipedia.org/wiki/Ottawa#Climate</a></div>
<div><br>
</div>
<div class=3D"x_x-apple-signature">Robert</div>
<div class=3D"x_x-apple-signature">55 BN1<br>
</div>
<div class=3D"x_x-apple-signature"><br>
</div>
<div><br>
On Sep 16, 2018, at 02:44 PM, Harold Manifold <manifold@telus.net> wr=
ote:<br>
<br>
<div>
<blockquote type=3D"cite">
<div class=3D"x_msg-quote">
<div dir=3D"ltr" align=3D"left"><span class=3D"x_436134816-16092018"><span =
size=3D"2" face=3D"Arial" color=3D"#0000ff" style=3D"color:#0000ff; font-fa=
mily:Arial; font-size:small">I tried to help myself but I have once again b=
een drawn into a discussion about engine thermostats.
As I read the posts the underlying questions are what is the best thermost=
at and do I have the right one? I will correct one Poster who suggested the=
role of the thermostat was to control pressure in the cooling system. Whil=
e thermostats may have an effect
on pressure in the cooling system that is the job of the radiator cap. </s=
pan></span></div>
<div dir=3D"ltr" align=3D"left"><span class=3D"x_436134816-16092018"><span =
size=3D"2" face=3D"Arial" color=3D"#0000ff" style=3D"color:#0000ff; font-fa=
mily:Arial; font-size:small"></span></span> </div>
<div dir=3D"ltr" align=3D"left"><span face=3D"Arial" style=3D"font-family:A=
rial"><span size=3D"2" style=3D"font-size:small"><span color=3D"#0000ff" st=
yle=3D"color:#0000ff"><span class=3D"x_436134816-16092018">I suggest the be=
st thermostat has these features: fails in the open
position i.e. coolant circulates through the radiator. You can get home wi=
th a cool engine but not a hot one. Blocks circulation of coolant between t=
he engine and radiator until the engine has reached its predetermined tempe=
rature. i.e. The thermostat fits
the housing and seals when closed. </span><span class=3D"x_436134816-16092=
018">The thermostat fully opens about 15-20 degrees above its rated tempera=
ture. The thermostat should have a =93jiggle pin=94 or =93check valve=94 th=
at allows trapped air in the cooling system
to pass through the thermostat and be released from the system.</span></sp=
an></span></span></div>
<div dir=3D"ltr" align=3D"left"><span size=3D"2" face=3D"Arial" color=3D"#0=
000ff" style=3D"color:#0000ff; font-family:Arial; font-size:small"><span cl=
ass=3D"x_436134816-16092018"></span></span> </div>
<div dir=3D"ltr" align=3D"left"><span size=3D"2" face=3D"Arial" color=3D"#0=
000ff" style=3D"color:#0000ff; font-family:Arial; font-size:small"><span cl=
ass=3D"x_436134816-16092018">Do I have the right one? Based on old manuals =
I have seen there were two temperature 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 was to reduce bo=
iling the radiator in summer and to make the heater work better in the wint=
er. Depending on where you live
and and the driving conditions may influence which end of the range y=
ou want to be at. If you live in Florida and/or drive in slow moving traffi=
c I would suggest the 160 degree. Your cooling system will have more reserv=
e when traffic slows. If you live in
Ottawa 185 is likely better as it is winter all the time. However, the mos=
t important factor is not opening temperature but does the thermostat =
properly control the coolant temperature. If you have a 160 degree thermost=
at and the coolant temperature fluctuates
between 160-180 then it is the right one. Likewise the 185 should stay bet=
ween 185-205. It is most important for the cooling system to stay between t=
he lower and upper temperatures. If the temperature is not between these tw=
o points then the cooling system
is "not in control".</span></span></div>
<div dir=3D"ltr" align=3D"left"><span size=3D"2" face=3D"Arial" color=3D"#0=
000ff" style=3D"color:#0000ff; font-family:Arial; font-size:small"><span cl=
ass=3D"x_436134816-16092018"></span></span> </div>
<div dir=3D"ltr" align=3D"left"><span size=3D"2" face=3D"Arial" color=3D"#0=
000ff" style=3D"color:#0000ff; font-family:Arial; font-size:small"><span cl=
ass=3D"x_436134816-16092018">Bottom line is if the cooling system is "=
in control" and you are happy with the way the car
warms up you have the right thermostat.</span></span></div>
<div dir=3D"ltr" align=3D"left"><span size=3D"2" face=3D"Arial" color=3D"#0=
000ff" style=3D"color:#0000ff; font-family:Arial; font-size:small"><span cl=
ass=3D"x_436134816-16092018"></span></span> </div>
<div dir=3D"ltr" align=3D"left"><span face=3D"Arial" style=3D"font-family:A=
rial"><span size=3D"2" style=3D"font-size:small"><span color=3D"#0000ff" st=
yle=3D"color:#0000ff"><span class=3D"x_436134816-16092018">Harold</span></s=
pan></span></span></div>
</div>
</blockquote>
</div>
</div>
</div>
</body>
</html>
--_000_DM6PR07MB453816FBC09E69BB03FFC1D7A5130DM6PR07MB4538namp_--
--===============4489862907250397292==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/pipermail/healeys
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============4489862907250397292==--
|