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<DIV>It will only draw the coolant back and forth from the expansion tank if the
radiator cap is a sealed cap. </DIV>
<DIV> </DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: #000000">David
Nock<BR>healeydoc@sbcglobal.net<BR>209 948
8767<BR>www.britishcarspecialists.com</DIV>
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<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=michael.oritt@gmail.com
href="mailto:michael.oritt@gmail.com">Michael Oritt</A> </DIV>
<DIV><B>Sent:</B> Tuesday, November 15, 2016 5:31 AM</DIV>
<DIV><B>To:</B> <A title=p_cquinn@tpg.com.au
href="mailto:p_cquinn@tpg.com.au">Patrick & Caroline Quinn</A> </DIV>
<DIV><B>Cc:</B> <A title=healeys@autox.team.net
href="mailto:healeys@autox.team.net">Austin Healey</A> </DIV>
<DIV><B>Subject:</B> Re: [Healeys] Coolant Expansion Bottle</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
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<DIV class=gmail_default style="COLOR: #3333ff">Patrick--</DIV>
<DIV class=gmail_default style="COLOR: #3333ff"> </DIV>
<DIV class=gmail_default style="COLOR: #3333ff">The system will draw coolant
back into the system from the expansion tank only if the end of the hose is
submerged in coolant, either because it enters the tank from the bottom or from
the top in which case, as Kimo points out, the hose clamps must be tight so that
the vacuum created within the radiator is preserved in order to draw
liquid.</DIV>
<DIV class=gmail_default style="COLOR: #3333ff"> </DIV>
<DIV class=gmail_default style="COLOR: #3333ff">Best--Michael Oritt</DIV></DIV>
<DIV class=gmail_extra>
<DIV> </DIV>
<DIV class=gmail_quote>On Mon, Nov 14, 2016 at 3:37 PM, Patrick & Caroline
Quinn <SPAN dir=ltr><<A href="mailto:p_cquinn@tpg.com.au"
target=_blank>p_cquinn@tpg.com.au</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV lang=EN-AU vlink="purple" link="blue">
<DIV class=m_7435241687470160984WordSection1>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>G’day<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>I know the
subject of fitting a coolant expansion bottle has been covered before, but
this has a twist as it concerns a Healey and not an
Austin-Healey.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>Our Healey
Duncan has its original cooling system that is unpressurised. It’s assisted by
an electric fan in front of the radiator, but with our warmer climate it
persists is dumping its coolant out through the overflow
pipe.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>The radiator
cap is a screw on type and the overflow pipe exits the radiator header tank
separately in front of the cap. Being unpressurised there is nothing to stop
the hot and expanded coolant from exiting via the overflow
pipe.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>I am thinking
of fitting a coolant expansion bottle but am wondering if this will work on an
unpressurised system. It seems to me that it should not make any difference,
because if the coolant cannot escape to the outside world when it expands then
it should flow back into the radiator once it cools.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>Any
opinions?<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>Thanks<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>Patrick
Quinn<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Times New Roman","serif"'>Blue
Mountains,
Australia<U></U><U></U></SPAN></P></DIV></DIV><BR>______________________________<WBR>_________________<BR>Support
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