--===============1267153261314052259==
--00000000000033609705bcfb714a
Content-Transfer-Encoding: quoted-printable
Bob,
Those numbers you tabled need further investigation. Typically at steady
state the temp diff between in/out of rad is around 10F.
Presume that both tests were done at idle with little heat being generated.
The heat extraction by cooling system is proportional to difference between
ambient air temp and average rad temp.
Increasing flow rate will increase rad output temp and thus inlet will go
down.
I will try to fish out a good description I read a few years ago.
rg
On Sat, Mar 6, 2021 at 4:59 PM Bob Spidell via Healeys <
healeys@autox.team.net> wrote:
> Anyone tried a smaller diameter pulley on the pump?
>
>
> On 3/6/2021 4:49 PM, Simon Lachlan via Healeys wrote:
>
> Using an original type stat helps too ie the one with a sleeve. Helps, no=
t
> cures all.
>
> Simon
>
>
>
> *From:* Healeys <healeys-bounces@autox.team.net>
> <healeys-bounces@autox.team.net> *On Behalf Of *warthodson--- via Healeys
> *Sent:* 06 March 2021 23:41
> *To:* rfbegani@gmail.com; michaelsalter@gmail.com; bspidell@comcast.net;
> healeys@autox.team.net
> *Subject:* Re: [Healeys] Overheating
>
>
>
> It seems to me that switching from a 7 PSI radiator cap to a 15PSI cap is
> not a solution to an overheating problem but rather a band-aid.
> Gary Hodson
>
> -----Original Message-----
> From: rfbegani@gmail.com
> To: 'Michael Salter' <michaelsalter@gmail.com>; 'Bob Spidell' <
> bspidell@comcast.net>; 'Ahealey help' <healeys@autox.team.net>
> Sent: Sat, Mar 6, 2021 3:58 pm
> Subject: [Healeys] Overheating
>
> Bob & Mike:
>
>
>
> You both may have seen my requests on overheating of my BJ8 and the
> response from the group. As a result, I purchased an infrared thermomete=
r
> to determine if my water gauge was giving accurate readings. The
> thermometer gun told me that my water gauge was 30 degrees higher than th=
e
> temperature of the sensor attached to the block. At the same time, I
> noticed my gauge will show 120 degrees at rest instead of going down to 9=
0
> degrees which would indicate a 30-degree high reading. In May when I lea=
ve
> for cool Michigan, I will send the gauge to Nisonger to be rebuilt.
>
>
>
> I began to test the temperature of the water going through the cooling
> system at the inlet to and outlet from the block, inlet and outlet to the
> radiator and the upper and lower hoses while the engine is running at idl=
e
> and at 2-3 Thousand rpm. The chart I created to record these temperature=
s
> allowed me to produce observations or averages because the flow of the
> water is dependent upon the rpms of the engine. The engine has overheate=
d
> all of the 40 years I have owned it and has only 1000 miles on the new
> speedo since rebuilding to 20 over.
>
>
>
> At the radiator inlet 134 outlet 85 at high rpms with electric fan
> operating.
>
> inlet 103 outlet 94 at idle rpms with electric fa=
n
> operating.
>
>
>
> The above temperatures are recorded at the inlet and all along the hoses.
>
>
>
> These temperatures indicate the pump is circulating water with sufficient
> gallons to cool the engine only when the engine is at high rpms. At idle
> the pump does not circulate sufficient water to keep the engine cool. Th=
is
> is especially true when you have been operating the engine at high speed
> and come down to 30 =E2=80=93 40 mph and stop and go traffic. Maybe the =
real
> answer is to install an electric pump for constant cooling water?
>
>
>
> In the past week, I have installed a large Dorman coolant recovery tank
> and a new 7 psi 1 inch radiator cap because I learned that our radiators
> have a long neck. Both those changes have reduced my problem of very hig=
h
> overheating and resulting boiling over. In addition, when my water gauge
> shows 212 degrees the water temperature is actually 30 degrees less or
> approximately 185 degrees. Also, I am not boiling over and loosing
> coolant. Nevertheless, the engine water temperature is still spiking to
> 210 plus degrees true when coming off highway speeds.
>
>
>
> In my review of various sites, the radiator equipment suppliers and other=
s
> are recommending increasing the pressure in the classic car systems to 15
> psi plus, and coolant recovery tanks =E2=80=9Cif your coolant system, rad=
iator,
> hoses etc. is new=E2=80=9D and therefore can hold the pressure. Unfortun=
ately, I
> have not found any maker of a 1 inch depth x 2.33 inch diameter radiator
> cap except our 7 psi cap so I can try such a pressurized system.
>
>
>
> Another suggestion on an older discussion at the British Car Forum
> indicated some of the Ontario car owners had switched to Evans Waterless
> Coolant rather than 50/50 coolant water mixture.
>
>
>
> I still have no idea why a minority of our group has overheating
> problems. More ideas?
>
>
>
> Regards,
>
>
>
> Bob Begani 67 BJ8
>
>
>
>
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
>
> Archive: http://www.team.net/pipermail/healeys
> http://autox.team.net/archive
>
> Healeys@autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/roggrace@telus.net
>
>
--00000000000033609705bcfb714a
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div>Bob,</div><div>Those numbers you tabled need further =
investigation. Typically at steady state the temp diff between in/out of ra=
d is around 10F.</div><div>Presume that both tests were done at idle with l=
ittle heat being generated.<br></div><div>The heat extraction by cooling sy=
stem is proportional to difference between ambient air temp and average rad=
temp.</div><div>Increasing flow rate will increase rad output temp and thu=
s inlet will go down.<br></div><div>I will try to fish out a good descripti=
on I read a few years ago.</div><div>rg<br></div><div><br></div></div><br><=
div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Mar=
6, 2021 at 4:59 PM Bob Spidell via Healeys <<a href=3D"mailto:healeys@a=
utox.team.net" target=3D"_blank">healeys@autox.team.net</a>> wrote:<br><=
/div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bo=
rder-left:1px solid rgb(204,204,204);padding-left:1ex">
=20
=20
=20
<div>
Anyone tried a smaller diameter pulley on the pump?<br>
<br>
<br>
<div>On 3/6/2021 4:49 PM, Simon Lachlan via
Healeys wrote:<br>
</div>
<blockquote type=3D"cite">
=20
=20
=20
<div>
<p class=3D"MsoNormal"><span>Using
an original type stat helps too ie the one with a sleeve.
Helps, not cures all.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span>Simon<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<div style=3D"border-color:rgb(225,225,225) currentcolor currentcol=
or;border-style:solid none none;border-width:1pt medium medium;padding:3pt =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><s=
pan lang=3D"EN-US"> Healeys
<a href=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_=
blank"><healeys-bounces@autox.team.net></a> <b>On Behalf Of </b>warth=
odson---
via Healeys<br>
<b>Sent:</b> 06 March 2021 23:41<br>
<b>To:</b> <a href=3D"mailto:rfbegani@gmail.com"; target=3D"_b=
lank">rfbegani@gmail.com</a>; <a href=3D"mailto:michaelsalter@gmail.com"; ta=
rget=3D"_blank">michaelsalter@gmail.com</a>;
<a href=3D"mailto:bspidell@comcast.net"; target=3D"_blank">bsp=
idell@comcast.net</a>; <a href=3D"mailto:healeys@autox.team.net"; target=3D"=
_blank">healeys@autox.team.net</a><br>
<b>Subject:</b> Re: [Healeys] Overheating<u></u><u></u></span=
></p>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt"><span>It seem=
s to me that switching from a
7 PSI radiator cap to a 15PSI cap is not a solution to an
overheating problem but rather a band-aid.=C2=A0 =C2=A0<br>
Gary Hodson<u></u><u></u></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt"><span style=
=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black">--=
---Original
Message-----<br>
From: <a href=3D"mailto:rfbegani@gmail.com"; target=3D"_blan=
k">rfbegani@gmail.com</a><br>
To: 'Michael Salter' <<a href=3D"mailto:michaels=
alter@gmail.com" target=3D"_blank">michaelsalter@gmail.com</a>>;
'Bob Spidell' <<a href=3D"mailto:bspidell@comcas=
t.net" target=3D"_blank">bspidell@comcast.net</a>>;
'Ahealey help' <<a href=3D"mailto:healeys@autox.=
team.net" target=3D"_blank">healeys@autox.team.net</a>><br>
Sent: Sat, Mar 6, 2021 3:58 pm<br>
Subject: [Healeys] Overheating<u></u><u></u></span></p>
<div id=3D"gmail-m_8240319592857340524gmail-m_45552413377591889=
1gmail-m_-943700279356125374yiv7728791887">
<div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">Bob
& Mike:</span><span style=3D"font-size:10pt;fon=
t-family:"Arial",sans-serif;color:black"><u></u><u></u></span></p=
>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">You
both may have seen my requests on overheating of
my BJ8 and the response from the group.=C2=A0 As a
result, I purchased an infrared thermometer to
determine if my water gauge was giving accurate
readings.=C2=A0 The thermometer gun told me that my
water gauge was 30 degrees higher than the
temperature of the sensor attached to the
block.=C2=A0 At the same time, I noticed my gauge
will show 120 degrees at rest instead of going
down to 90 degrees which would indicate a
30-degree high reading.=C2=A0 In May when I leave f=
or
cool Michigan, I will send the gauge to Nisonger
to be rebuilt.</span><span style=3D"font-size:10pt;=
font-family:"Arial",sans-serif;color:black"><u></u><u></u></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">I
began to test the temperature of the water going
through the cooling system at the inlet to and
outlet from the block, inlet and outlet to the
radiator and the upper and lower hoses while the
engine is running at idle and at 2-3 Thousand
rpm.=C2=A0 The chart I created to record these
temperatures allowed me to produce observations
or averages because the flow of the water is
dependent upon the rpms of the engine.=C2=A0 The
engine has overheated all of the 40 years I have
owned it and has only 1000 miles on the new
speedo since rebuilding to 20 over. </span><span st=
yle=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"=
><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">At
the radiator inlet 134 outlet 85 at high rpms
with electric fan operating.</span><span style=3D"f=
ont-size:10pt;font-family:"Arial",sans-serif;color:black"><u></u>=
<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
inlet 103 outlet 94 at idle rpms with electric
fan operating. </span><span style=3D"font-size:10pt=
;font-family:"Arial",sans-serif;color:black"><u></u><u></u></span=
></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">The
above temperatures are recorded at the inlet and
all along the hoses.</span><span style=3D"font-size=
:10pt;font-family:"Arial",sans-serif;color:black"><u></u><u></u><=
/span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">These
temperatures indicate the pump is circulating
water with sufficient gallons to cool the engine
only when the engine is at high rpms.=C2=A0 At idle
the pump does not circulate sufficient water to
keep the engine cool.=C2=A0 This is especially true
when you have been operating the engine at high
speed and come down to 30 =E2=80=93 40 mph and stop=
and
go traffic.=C2=A0 Maybe the real answer is to insta=
ll
an electric pump for constant cooling water?</span>=
<span style=3D"font-size:10pt;font-family:"Arial",sans-serif;colo=
r:black"><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">In
the past week, I have installed a large Dorman
coolant recovery tank and a new 7 psi 1 inch
radiator cap because I learned that our
radiators have a long neck.=C2=A0 Both those change=
s
have reduced my problem of very high overheating
and resulting boiling over.=C2=A0 In addition, when
my water gauge shows 212 degrees the water
temperature is actually 30 degrees less or
approximately 185 degrees.=C2=A0 Also, I am not
boiling over and loosing coolant.=C2=A0 Nevertheles=
s,
the engine water temperature is still spiking to
210 plus degrees true when coming off highway
speeds.=C2=A0 </span><span style=3D"font-size:10pt;=
font-family:"Arial",sans-serif;color:black"><u></u><u></u></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">In
my review of various sites, the radiator
equipment suppliers and others are recommending
increasing the pressure in the classic car
systems to 15 psi plus, and coolant recovery
tanks =E2=80=9Cif your coolant system, radiator, ho=
ses
etc. is new=E2=80=9D and therefore can hold the
pressure.=C2=A0 Unfortunately, I have not found any
maker of a 1 inch depth x 2.33 inch diameter
radiator cap except our 7 psi cap so I can try
such a pressurized system.</span><span style=3D"fon=
t-size:10pt;font-family:"Arial",sans-serif;color:black"><u></u><u=
></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">Another
suggestion on an older discussion at the British
Car Forum indicated some of the Ontario car
owners had switched to Evans Waterless Coolant
rather than 50/50 coolant water mixture.</span><spa=
n style=3D"font-size:10pt;font-family:"Arial",sans-serif;color:bl=
ack"><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">I
still have no idea why a minority of our group
has overheating problems.=C2=A0 More ideas?</span><=
span style=3D"font-size:10pt;font-family:"Arial",sans-serif;color=
:black"><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">Regards,</span><span st=
yle=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"=
><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">Bob
Begani 67 BJ8 </span><span style=3D"font-size:10pt;=
font-family:"Arial",sans-serif;color:black"><u></u><u></u></span>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:14pt;fo=
nt-family:"Arial",sans-serif;color:black">=C2=A0</span><span styl=
e=3D"font-size:10pt;font-family:"Arial",sans-serif;color:black"><=
u></u><u></u></span></p>
</div>
<br>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<br>
</div>
_______________________________________________<br>
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<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferre=
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ttp://autox.team.net/archive" rel=3D"noreferrer" target=3D"_blank">http://a=
utox.team.net/archive</a><br>
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<br>
</blockquote></div>
--00000000000033609705bcfb714a--
--===============1267153261314052259==
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_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============1267153261314052259==--
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