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Using an original type stat helps too ie the one with a sleeve. Helps, =
not cures all.
Simon
=20
From: Healeys <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
=20
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. =20
Gary Hodson
-----Original Message-----
To: 'Michael Salter' <michaelsalter@gmail.com =
Sent: Sat, Mar 6, 2021 3:58 pm
Subject: [Healeys] Overheating
Bob & Mike:
=20
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 =
thermometer to determine if my water gauge was giving accurate readings. =
The thermometer gun told me that my water gauge was 30 degrees higher =
than the 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 90 degrees which would indicate a 30-degree high reading. In =
May when I leave for cool Michigan, I will send the gauge to Nisonger to =
be rebuilt.
=20
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. 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. 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.=20
=20
At the radiator inlet 134 outlet 85 at high rpms with electric fan =
operating.
inlet 103 outlet 94 at idle rpms with electric =
fan operating.=20
=20
The above temperatures are recorded at the inlet and all along the =
hoses.
=20
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. 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. Maybe the real answer is to install an electric pump for =
constant cooling water?
=20
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 =
high 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. =20
=20
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, hoses etc. is new=E2=80=9D and therefore can =
hold the pressure. 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.
=20
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.
=20
I still have no idea why a minority of our group has overheating =
problems. More ideas?
=20
Regards,
=20
Bob Begani 67 BJ8=20
=20
=20
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vlink=3Dpurple style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Using an original type stat helps =
too ie the one with a sleeve. Helps, not cures =
all.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Simon<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> Healeys =
<healeys-bounces@autox.team.net> <b>On Behalf Of </b>warthodson--- =
via Healeys<br><b>Sent:</b> 06 March 2021 23:41<br><b>To:</b> =
rfbegani@gmail.com; michaelsalter@gmail.com; bspidell@comcast.net; =
healeys@autox.team.net<br><b>Subject:</b> Re: [Healeys] =
Overheating<o:p></o:p></span></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:12.0pt;font-family:"Comic Sans MS";color:black'>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. =
<br>Gary Hodson<o:p></o:p></span></p><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>---=
--Original Message-----<br>From: <a =
href=3D"mailto:rfbegani@gmail.com";>rfbegani@gmail.com</a><br>To: =
'Michael Salter' <<a =
href=3D"mailto:michaelsalter@gmail.com";>michaelsalter@gmail.com</a>>; =
'Bob Spidell' <<a =
href=3D"mailto:bspidell@comcast.net";>bspidell@comcast.net</a>>; =
'Ahealey help' <<a =
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>><br>=
Sent: Sat, Mar 6, 2021 3:58 pm<br>Subject: [Healeys] =
Overheating<o:p></o:p></span></p><div =
id=3Dyiv7728791887><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>Bob=
& Mike:</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>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 =
thermometer to determine if my water gauge was giving accurate =
readings. The thermometer gun told me that my water gauge was 30 =
degrees higher than the 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 90 degrees which would indicate a =
30-degree high reading. In May when I leave for cool Michigan, I =
will send the gauge to Nisonger to be rebuilt.</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-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. 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. 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 =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>At =
the radiator inlet 134 outlet 85 at high rpms with electric fan =
operating.</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp; &nbs=
p; inlet 103 =
outlet 94 at idle rpms with electric fan operating. </span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-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:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>The=
se 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. 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. Maybe the real answer is to install an electric pump =
for constant cooling water?</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-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. Both those changes have reduced my problem of =
very high 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. </span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-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, hoses etc. is new=E2=80=9D and therefore can hold the =
pressure. 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'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>Ano=
ther 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><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>I =
still have no idea why a minority of our group has overheating =
problems. More ideas?</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>Reg=
ards,</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>Bob=
Begani 67 BJ8 </span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:14.0pt;font-family:"Arial",sans-serif;color:black'>&nb=
sp;</span><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p></o:p></span></p></div><div style=3D'border:none;border-top:solid =
#E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif;color:black'><o:=
p> </o:p></span></p></div></div></div></div></div></div></div></div>=
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