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So first step is to make sure your temperature gauge is accurate. If you ar=
e still running hot I solved the problem by adding an additional row to a f=
actory original radiator. Haven't had any problem with overheating since. =
I had already tried adding an electric fan, an oil cooler and a Texas fan. =
Nothing worked.
________________________________
From: Healeys <healeys-bounces@autox.team.net> on behalf of rfbegani@gmail.=
com <rfbegani@gmail.com>
Sent: Saturday, March 6, 2021 4:58 PM
To: 'Michael Salter' <michaelsalter@gmail.com>; 'Bob Spidell' <bspidell@com=
cast.net>; 'Ahealey help' <healeys@autox.team.net>
Subject: [Healeys] Overheating
Bob & Mike:
You both may have seen my requests on overheating of my BJ8 and the respons=
e from the group. As a result, I purchased an infrared thermometer to dete=
rmine 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 t=
he 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 i=
ndicate a 30-degree high reading. In May when I leave 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 syst=
em at the inlet to and outlet from the block, inlet and outlet to the radia=
tor and the upper and lower hoses while the engine is running at idle and a=
t 2-3 Thousand rpm. The chart I created to record these temperatures allow=
ed 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 th=
e 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 operatin=
g.
inlet 103 outlet 94 at idle rpms with electric fan =
operating.
The above temperatures are recorded at the inlet and all along the hoses.
These temperatures indicate the pump is circulating water with sufficient g=
allons to cool the engine only when the engine is at high rpms. At idle th=
e pump does not circulate sufficient water to keep the engine cool. This i=
s especially true when you have been operating the engine at high speed and=
come down to 30 =96 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 high overh=
eating and resulting boiling over. In addition, when my water gauge shows =
212 degrees the water temperature is actually 30 degrees less or approximat=
ely 185 degrees. Also, I am not boiling over and loosing coolant. Neverth=
eless, the engine water temperature is still spiking to 210 plus degrees tr=
ue when coming off highway speeds.
In my review of various sites, the radiator equipment suppliers and others =
are recommending increasing the pressure in the classic car systems to 15 p=
si plus, and coolant recovery tanks =93if your coolant system, radiator, ho=
ses etc. is new=94 and therefore can hold the pressure. Unfortunately, I h=
ave 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 indicate=
d some of the Ontario car owners had switched to Evans Waterless Coolant ra=
ther 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
From: Healeys <healeys-bounces@autox.team.net> On Behalf Of Michael Salter =
via Healeys
Sent: Saturday, March 6, 2021 12:20 PM
To: Bob Spidell <bspidell@comcast.net>
Cc: healeys@autox.team.net
Subject: Re: [Healeys] 100 water pumps
Yes Bob, there is something wrong with our assumptions regarding the coolin=
g system not being "large" enough.
My wifes Maxima is around 300 HP and the radiator has less area than the 10=
0. Certainly it has a couple of very effective electric fans but they reall=
y don't cut in very often unless you have the AC on.
I'm suspicious of the rate of circulation but I've talked to Larry Varley a=
bout this subject and he indicated that increasing the size of the water pu=
mp annular orifice didn't make much difference when he tried it.
M
M
pidell@comcast.net>> wrote:
I sold my late father's 1955 Thunderbird to my BFF. These cars have a very =
similar problem to Healeys overheating, esp. at idle. When Ford stuffed the=
292ci Y-Block into the T-Bird, they found the engine was (essentially) too=
short for the long-hooded car, so they 'engineered'--I use the term loosel=
y--a cast iron spacer to move the fan closer to the radiator. The spacer ha=
d the added 'benefit' of severely limiting coolant flow through the pump an=
d radiator; there are some aftermarket fixes and my friend, after doing the=
usual radiator re-core, better fan, etc. installed both a better pump (lar=
ger vanes) and a re-engineered spacer. Attached pic is not of the spacer he=
used--I can't find the link to it--but it shows the general idea (Ford bas=
ically put a 'dam' in the cooling system to block flow, and the improved sp=
acers mostly remove it). It appears this approach has improved cooling, tho=
ugh the engine probably still gets warm if it has to sit too long at idle. =
Link is to one of the improved pumps:
https://www.classictbird.com/Water-Pump-Modified-for-Higher-Output-1-Per-ca=
r/productinfo/8501HO/
Anyways, after doing all the usual stuff to increase cooling, esp. on my BJ=
8, I've wondered if a similar approach would work on Healeys. Their pumps h=
ave very small vanes, and the cavity in which the vanes operate seems prett=
y small for such a large lump of cast iron (I'm guessing an uprated radiato=
r core won't help much if the coolant flow is still hampered; at least, tha=
t's what I've found). This is probably not an option as, of course, our eng=
ines don't have a similar spacer to be improved upon, and it would be a maj=
or task to increase both the cavity's size and the pump (but I can dream).
ps. The overheating issue with Healeys is usually attributed to too big of =
an engine in too small of an engine compartment, and too little airflow. Bu=
t, the engine bay in an old T-Bird is huge by comparison--and the engine no=
t terribly larger in displacement--and still suffers the same problem.
Bob
--_000_MN2PR13MB3503C0E83FDF68076C84996CB8949MN2PR13MB3503namp_
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<style type=3D"text/css" style=3D"display:none;"> P {margin-top:0;margin-bo=
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<body dir=3D"ltr">
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
color: rgb(0, 0, 0);">
So first step is to make sure your temperature gauge is accurate. If you ar=
e still running hot I solved the problem by adding an additional row to a f=
actory original radiator. Haven't had any problem with overheating si=
nce. I had already tried adding an electric
fan, an oil cooler and a Texas fan. Nothing worked. </div>
<div>
<div id=3D"appendonsend"></div>
<div style=3D"font-family:Calibri,Helvetica,sans-serif; font-size:12pt; col=
or:rgb(0,0,0)">
<br>
</div>
<hr tabindex=3D"-1" style=3D"display:inline-block; width:98%">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" co=
lor=3D"#000000" style=3D"font-size:11pt"><b>From:</b> Healeys <healeys-b=
ounces@autox.team.net> on behalf of rfbegani@gmail.com <rfbegani@gmai=
l.com><br>
<b>Sent:</b> Saturday, March 6, 2021 4:58 PM<br>
<b>To:</b> 'Michael Salter' <michaelsalter@gmail.com>; 'Bob Spidell' =
<bspidell@comcast.net>; 'Ahealey help' <healeys@autox.team.net>=
<br>
<b>Subject:</b> [Healeys] Overheating</font>
<div> </div>
</div>
<div lang=3D"EN-US" style=3D"word-wrap:break-word">
<div class=3D"x_WordSection1">
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
Bob & Mike:</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
You both may have seen my requests on overheating of my BJ8 and the respons=
e 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 deg=
rees 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 w=
ill send the gauge to Nisonger to be rebuilt.</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
I began to test the temperature of the water going through the cooling syst=
em at the inlet to and outlet from the block, inlet and outlet to the radia=
tor and the upper and lower hoses while the
engine is running at idle and at 2-3 Thousand rpm. The chart I creat=
ed to record these temperatures allowed me to produce observations or avera=
ges 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 r=
ebuilding to 20 over.
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
At the radiator inlet 134 outlet 85 at high rpms with electric fan operatin=
g.</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
&nb=
sp; inlet 103 o=
utlet 94 at idle rpms with electric fan operating.
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
The above temperatures are recorded at the inlet and all along the hoses.</=
span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
These temperatures indicate the pump is circulating water with sufficient g=
allons to cool the engine only when the engine is at high rpms. At id=
le the pump does not circulate sufficient water to
keep the engine cool. This is especially true when you have been ope=
rating the engine at high speed and come down to 30 =96 40 mph and stop and=
go traffic. Maybe the real answer is to install an electric pump for=
constant cooling water?</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
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 a=
ddition, when my water gauge shows 212 degrees the water temperature is act=
ually 30 degrees less or approximately 185 degrees. Also, I am not bo=
iling over and loosing coolant. Nevertheless,
the engine water temperature is still spiking to 210 plus degrees true whe=
n coming off highway speeds.
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
In my review of various sites, the radiator equipment suppliers and others =
are recommending increasing the pressure in the classic car systems to 15 p=
si plus, and coolant recovery tanks =93if your
coolant system, radiator, hoses etc. is new=94 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></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
Another suggestion on an older discussion at the British Car Forum indicate=
d some of the Ontario car owners had switched to Evans Waterless Coolant ra=
ther than 50/50 coolant water mixture.</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
I still have no idea why a minority of our group has overheating problems.&=
nbsp; More ideas?</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
Regards,</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
Bob Begani 67 BJ8 </span>
</p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:14.0pt; font-family:"Arial",sans-serif">=
</span></p>
<div style=3D"border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0i=
n 0in 0in">
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<b>From:</b> Healeys <healeys-bounces@autox.team.net> <b>On Behalf Of=
</b>Michael Salter via Healeys<br>
<b>Sent:</b> Saturday, March 6, 2021 12:20 PM<br>
<b>To:</b> Bob Spidell <bspidell@comcast.net><br>
<b>Cc:</b> healeys@autox.team.net<br>
<b>Subject:</b> Re: [Healeys] 100 water pumps</p>
</div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
</p>
<div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:12.0pt; font-family:"Arial",sans-serif">=
Yes Bob, there is something wrong with our assumptions regarding the coolin=
g system not being "large" enough.
</span><span style=3D"font-size:12.0pt"></span></p>
</div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:12.0pt; font-family:"Arial",sans-serif">=
My wifes Maxima is around 300 HP and the radiator has less area than the 10=
0. Certainly it has a couple of very effective electric fans but they reall=
y don't cut in very often unless you have the
AC on.</span><span style=3D"font-size:12.0pt"></span></p>
</div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:12.0pt; font-family:"Arial",sans-serif">=
I'm suspicious of the rate of circulation but I've talked to Larry Varley a=
bout this subject and he indicated that increasing the size of the water pu=
mp annular orifice didn't make much difference
when he tried it.</span><span style=3D"font-size:12.0pt"></span></p>
</div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:12.0pt"> </span></p>
</div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:12.0pt; font-family:"Arial",sans-serif">=
M</span><span style=3D"font-size:12.0pt; font-family:"Comic Sans MS&qu=
ot;"></span></p>
</div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:12.0pt; font-family:"Comic Sans MS"">&nb=
sp;</span></p>
</div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
<span style=3D"font-size:12.0pt; font-family:"Comic Sans MS"">M</=
span></p>
</div>
</div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
</p>
<div>
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;">
On Sat, Mar 6, 2021 at 11:42 AM Bob Spidell <<a href=3D"mailto:bspidell@=
comcast.net">bspidell@comcast.net</a>> wrote:</p>
</div>
<blockquote style=3D"border:none; border-left:solid #CCCCCC 1.0pt; padding:=
0in 0in 0in 6.0pt; margin-left:4.8pt; margin-right:0in">
<div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;margin-right:0in; margin-bottom:12.0pt; margin-left:1=
1.4pt">
I sold my late father's 1955 Thunderbird to my BFF. These cars have a very =
similar problem to Healeys overheating, esp. at idle. When Ford stuffed the=
292ci Y-Block into the T-Bird, they found the engine was (essentially) too=
short for the long-hooded car,
so they 'engineered'--I use the term loosely--a cast iron spacer to move t=
he fan closer to the radiator. The spacer had the added 'benefit' of severe=
ly limiting coolant flow through the pump and radiator; there are some afte=
rmarket fixes and my friend, after
doing the usual radiator re-core, better fan, etc. installed both a better=
pump (larger vanes) and a re-engineered spacer. Attached pic is not of the=
spacer he used--I can't find the link to it--but it shows the general idea=
(Ford basically put a 'dam' in
the cooling system to block flow, and the improved spacers mostly remove i=
t). It appears this approach has improved cooling, though the engine probab=
ly still gets warm if it has to sit too long at idle. Link is to one of the=
improved pumps:<br>
<br>
<a href=3D"https://www.classictbird.com/Water-Pump-Modified-for-Higher-Outp=
ut-1-Per-car/productinfo/8501HO/" target=3D"_blank">https://www.classictbir=
d.com/Water-Pump-Modified-for-Higher-Output-1-Per-car/productinfo/8501HO/</=
a><br>
<br>
Anyways, after doing all the usual stuff to increase cooling, esp. on my BJ=
8, I've wondered if a similar approach would work on Healeys. Their pumps h=
ave very small vanes, and the cavity in which the vanes operate seems prett=
y small for such a large lump of
cast iron (I'm guessing an uprated radiator core won't help much if the co=
olant flow is still hampered; at least, that's what I've found). This is pr=
obably not an option as, of course, our engines don't have a similar spacer=
to be improved upon, and it would
be a major task to increase both the cavity's size and the pump (but I can=
dream).<br>
<br>
ps. The overheating issue with Healeys is usually attributed to too big of =
an engine in too small of an engine compartment, and too little airflow. Bu=
t, the engine bay in an old T-Bird is huge by comparison--and the engine no=
t terribly larger in displacement--and
still suffers the same problem.<br>
<br>
Bob </p>
</div>
<p class=3D"x_MsoNormal" style=3D"margin: 0in; font-size: 11pt; font-family=
: Calibri, sans-serif;margin-bottom:12.0pt">
</p>
</blockquote>
</div>
</div>
</div>
</div>
</body>
</html>
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