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The main purpose of putting a higher pressure cap is to stop the =
continues loss of coolant after shutting the engine down and the engine =
temp going up over the 212 point. By putting a 10 or 13 max pressure =
cap you have raised the boiling point 10 to 20 degrees thus stopping the =
coolant loss.
It wont do anything for the overheating.
On your newer cars today they need a much higher pressure cap because =
the run the engine temp much higher to reduce emissions. I have seen =
some new Jaguars and Land Rovers that are running a 25 lb cap. As well =
as cooling systems that you can not fill up correctly with out using a =
vacuum type filler. Due to the fact that there will be air pockets in =
the cooling system that you can not remove any other way.
David Nock
British Car Specialists
209-948-8767
www.britishcarspecialists.com
From: Kees Oudesluijs=20
Sent: Monday, September 17, 2018 7:53 AM
To: healeys@autox.team.net=20
Subject: Re: [Healeys] Thermostats
7 Psi should be more than enough on these old engines. Water pump seal =
may fail (as mentioned), so may the hoses and the original style =
radiator if you operate under a higher pressure. Modern cars can take =
much higher pressures of 20Psi or more. If your cooling system is up to =
scratch there should not be a problem. i.e. clean system, radiator with =
enough capacity, thermostatically controlled electric fan to keep things =
under control in dense traffic and hot weather. The electric fan may not =
be original but when these cars were new traffic conditions were not as =
demanding as in these days. It just keeps you out of trouble at very =
little costs and a bit of ingenuity (breakers yard).
Kees Oudesluijs
Op 17-9-2018 om 14:14 schreef Michael Salter:
Also, with respect to cooling system pressure, the water pump seal in =
the 6 cylinder engines typically won't handle much over 10 p.s.i.. M=20
-------------------------------------------------------------------------=
-----
From: Healeys mailto:healeys-bounces@autox.team.net on behalf of David =
Nock mailto:healeydoc@gmail.com
Sent: Sunday, September 16, 2018 11:16:50 PM
To: Linwood Rose
Cc: Forum Healeys
Subject: Re: [Healeys] Thermostats=20
If you are using the alloy radiator you have a short neck cap. =
Depending on the press=92s app you are using you can not use a bellows =
type thermostat. Because the bellows will collapse if you use anything =
over 7 lbs. Then the thermostat will close and the engine will overheat. =
Sent from my iPhone
On Sep 16, 2018, at 7:19 AM, Linwood Rose <linwoodrose@mac.com> wrote:
I would like to go back to Steve Byers=92 comment. I am not so much =
concerned about my car overheating. When the engine was rebuilt it was =
thoroughly cleaned to get rid of all sludge. I run an aluminum radiator, =
have built and installed air ducting for improved flow. I do not have an =
electric fan. =20
My problem was that my engine ran cool and would take quite a while =
to =93warm up.=94 I think I was using a 165 degree (or thereabouts) =
non-sleeved thermostat. Robert Shaw as I recall. So I wanted to get my =
engine up to 185-190 degrees sooner. I went with one of the same AC =
sleeved thermostats 82 degrees centigrade from Kees that Steve used. The =
engine seems to be much happier and gets to running temp more quickly.
At least for my engine, a 160-165 degree thermostat keeps things =
cool too long. In a perfect world I would prefer David Nock=92s bellows =
thermostat but with a 185-190 degree opening. Since that doesn=92t seem =
to be available I think I will stick with the AC unit and keep my eye on =
the temp. Gauge.
I am no authority on this. I am simply passing along my experience. =
Am I understanding all of this correctly?=20
Thanks,
Lin
Sent from my iPhone
On Sep 15, 2018, at 9:30 PM, Rossm <rvmaylor@shaw.ca> wrote:
To be fair Michael, it is hot maybe three days a year in Canada?:) =
. I left Calgary yesterday for the Rendezvous and it was snowing =
already. First time the hood contraption on the BN6 has been up since =
last September. =20
Sent from my iPhone
On Sep 15, 2018, at 10:50, Michael Salter =
<michael.salter@gmail.com> wrote:
Well I have watched this discussion on sleeved thermostats for =
the last week 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 stats and guess what ... not one complaint or comment =
on running hotter or overheating and absolutely no sign of any symptoms =
of overheating on my own BJ8 even in the hottest of ambient =
temperatures. It just didn't happen!!! Just sayin'. M=20
------------------------------------------------------------------------
From: Healeys <healeys-bounces@autox.team.net> on behalf of =
Rossm <rvmaylor@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
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=20
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Archive: http://www.team.net/pipermail/healeys
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Content-Transfer-Encoding: quoted-printable
<HTML><HEAD>
<META content=3D"text/html; charset=3Dwindows-1252"=20
http-equiv=3DContent-Type></HEAD>
<BODY dir=3Dltr bgColor=3D#ffffff text=3D#000000>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: #000000">
<DIV>The main purpose of putting a higher pressure cap is to stop the =
continues=20
loss of coolant after shutting the engine down and the engine temp going =
up over=20
the 212 point. By putting a 10 or 13 max pressure cap you have =
raised the=20
boiling point 10 to 20 degrees thus stopping the coolant loss.</DIV>
<DIV> </DIV>
<DIV>It wont do anything for the overheating.</DIV>
<DIV> </DIV>
<DIV>On your newer cars today they need a much higher pressure cap =
because the=20
run the engine temp much higher to reduce emissions. I have seen some =
new=20
Jaguars and Land Rovers that are running a 25 lb cap. As well as cooling =
systems=20
that you can not fill up correctly with out using a vacuum type filler. =
Due to=20
the fact that there will be air pockets in the cooling system that you =
can not=20
remove any other way.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: =
#000000">David=20
Nock<BR>British Car Specialists<BR>209-948-8767<BR><A=20
href=3D"http://www.britishcarspecialists.com";>www.britishcarspecialists.c=
om</A></DIV>
<DIV=20
style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: =
#000000"> </DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV> </DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=3Dcoudesluijs@chello.nl=20
href=3D"mailto:coudesluijs@chello.nl";>Kees Oudesluijs</A> </DIV>
<DIV><B>Sent:</B> Monday, September 17, 2018 7:53 AM</DIV>
<DIV><B>To:</B> <A title=3Dhealeys@autox.team.net=20
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</A> </DIV>
<DIV><B>Subject:</B> Re: [Healeys] Thermostats</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<P>7 Psi should be more than enough on these old engines. Water pump =
seal may=20
fail (as mentioned), so may the hoses and the original style radiator if =
you=20
operate under a higher pressure. Modern cars can take much higher =
pressures=20
of 20Psi or more. If your cooling system is up to scratch there =
should not=20
be a problem. i.e. clean system, radiator with enough capacity, =
thermostatically=20
controlled electric fan to keep things under control in dense traffic =
and hot=20
weather. The electric fan may not be original but when these cars were =
new=20
traffic conditions were not as demanding as in these days. It just keeps =
you out=20
of trouble at very little costs and a bit of ingenuity (breakers =
yard).<BR></P>
<P>Kees Oudesluijs</P>
<P> </P>
<P> </P>
<DIV class=3Dmoz-cite-prefix>Op 17-9-2018 om 14:14 schreef Michael=20
Salter:<BR></DIV>
<BLOCKQUOTE=20
cite=3Dmid:BN6PR22MB085295BDEBD870CC855FDD61A11E0@BN6PR22MB0852.namprd22.=
prod.outlook.com=20
type=3D"cite">
<META content=3D"text/html; charset=3Dutf-8">Also, with respect to =
cooling system=20
pressure, the water pump seal in the 6 cylinder engines typically =
won't handle=20
much over 10 p.s.i.. M=20
<HR tabIndex=3D-1 style=3D"WIDTH: 98%; DISPLAY: inline-block">
<DIV id=3DdivRplyFwdMsg dir=3Dltr><FONT style=3D"FONT-SIZE: 11pt" =
color=3D#000000=20
face=3D"Calibri, sans-serif"><B>From:</B> Healeys <A =
class=3Dmoz-txt-link-rfc2396E=20
=
href=3D"mailto:healeys-bounces@autox.team.net";>mailto:healeys-bounces@aut=
ox.team.net</A>=20
on behalf of David Nock <A class=3Dmoz-txt-link-rfc2396E=20
=
href=3D"mailto:healeydoc@gmail.com";>mailto:healeydoc@gmail.com</A><BR><B>=
Sent:</B>=20
Sunday, September 16, 2018 11:16:50 PM<BR><B>To:</B> Linwood=20
Rose<BR><B>Cc:</B> Forum Healeys<BR><B>Subject:</B> Re: [Healeys]=20
Thermostats</FONT>=20
<DIV> </DIV></DIV>
<DIV>If you are using the alloy radiator you have a short neck cap. =
Depending=20
on the press=92s app you are using you can not use a bellows type =
thermostat.=20
Because the bellows will collapse if you use anything over 7 lbs. Then =
the=20
thermostat will close and the engine will overheat. <BR><BR>
<DIV id=3DAppleMailSignature>Sent from my iPhone</DIV>
<DIV><BR>On Sep 16, 2018, at 7:19 AM, Linwood Rose <<A=20
href=3D"mailto:linwoodrose@mac.com"=20
moz-do-not-send=3D"true">linwoodrose@mac.com</A>> =
wrote:<BR><BR></DIV>
<BLOCKQUOTE type=3D"cite">
<DIV>I would like to go back to Steve Byers=92 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,=20
have built and installed air ducting for improved flow. I do not =
have an=20
electric fan. =20
<DIV> </DIV>
<DIV>My problem was that my engine ran cool and would take quite a =
while to=20
=93warm up.=94 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=20
185-190 degrees sooner. I went with one of the same AC sleeved =
thermostats=20
82 degrees centigrade from Kees that Steve used. The engine seems to =
be much=20
happier and gets to running temp more quickly.</DIV>
<DIV> </DIV>
<DIV>At least for my engine, a 160-165 degree thermostat keeps =
things cool=20
too long. In a perfect world I would prefer David Nock=92s bellows =
thermostat=20
but with a 185-190 degree opening. Since that doesn=92t seem to be =
available I=20
think I will stick with the AC unit and keep my eye on the temp.=20
Gauge.</DIV>
<DIV> </DIV>
<DIV>I am no authority on this. I am simply passing along my =
experience. Am=20
I understanding all of this correctly? </DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV>Lin<BR><BR>
<DIV id=3DAppleMailSignature>Sent from my iPhone</DIV>
<DIV><BR>On Sep 15, 2018, at 9:30 PM, Rossm <<A=20
href=3D"mailto:rvmaylor@shaw.ca"=20
moz-do-not-send=3D"true">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=20
already. First time the hood contraption on the BN6 has been up =
since last=20
September. <BR><BR>
<DIV id=3DAppleMailSignature>Sent from my iPhone</DIV>
<DIV><BR>On Sep 15, 2018, at 10:50, Michael Salter <<A=20
href=3D"mailto:michael.salter@gmail.com"=20
moz-do-not-send=3D"true">michael.salter@gmail.com</A>>=20
wrote:<BR><BR></DIV>
<BLOCKQUOTE type=3D"cite">
<DIV>
<META name=3DGenerator=20
content=3D"Microsoft Exchange =
Server">
<STYLE>
<!--
emailquote
{margin-left:1pt;
padding-left:4pt;
border-left:#800000 2px solid}
-->
</STYLE>
<DIV>Well I have watched this discussion on sleeved thermostats =
for the=20
last week but now I just have to say. When the sleeved =
thermostats went=20
NLA, about 45 years ago, we resorted to installing just plain =
old Stant=20
175 degree stats and guess what ... not one complaint or comment =
on=20
running hotter or overheating and absolutely no sign of any =
symptoms of=20
overheating on my own BJ8 even in the hottest of ambient =
temperatures.=20
It just didn't happen!!! Just sayin'. M=20
<HR tabIndex=3D-1 style=3D"WIDTH: 98%; DISPLAY: inline-block">
<DIV id=3Dx_divRplyFwdMsg dir=3Dltr><FONT style=3D"FONT-SIZE: =
11pt"=20
color=3D#000000=20
face=3D"Calibri, =
sans-serif"><B>From:</B>=20
Healeys <<A href=3D"mailto:healeys-bounces@autox.team.net"=20
moz-do-not-send=3D"true">healeys-bounces@autox.team.net</A>> =
on behalf=20
of Rossm <<A href=3D"mailto:rvmaylor@shaw.ca"=20
=
moz-do-not-send=3D"true">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=3D2><SPAN =
style=3D"FONT-SIZE: 11pt">
<DIV class=3DPlainText>Three sleeved thermostats, one on the =
right 160=20
degrees, middle no idea, left is a Smiths x85002s/86 =
(180F) and=20
has failed open. <BR><BR></DIV></SPAN></FONT></DIV></BLOCKQUOTE>
<BLOCKQUOTE type=3D"cite">
=
<DIV><SPAN>_______________________________________________</SPAN><BR><SPA=
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