[Healeys] Coolant Expansion Bottle

[David Nock BCS]

Yes but if the car has a non pressurized system it may not pull the coolant back when it cools down


David Nock
British Car Specialists
209-948-8767
www.britishcarspecialists.com

From: Michael Oritt 
Sent: Tuesday, November 15, 2016 9:21 AM
To: David Nock 
Cc: Austin Healey 
Subject: Re: [Healeys] Coolant Expansion Bottle

David--

Yes, a sealed cap which includes those with the button vent that essentially pulls in and seals when there is a vacuum in the system below it.

Best--Michael Oritt

On Tue, Nov 15, 2016 at 11:33 AM, David Nock <healeydoc at gmail.com> wrote:

  It will only draw the coolant back and forth from the expansion tank if the radiator cap is a sealed cap. 

  David Nock
  healeydoc at sbcglobal.net
  209 948 8767
  www.britishcarspecialists.com

  From: Michael Oritt 
  Sent: Tuesday, November 15, 2016 5:31 AM
  To: Patrick & Caroline Quinn 
  Cc: Austin Healey 
  Subject: Re: [Healeys] Coolant Expansion Bottle

  Patrick--

  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.

  Best--Michael Oritt

  On Mon, Nov 14, 2016 at 3:37 PM, Patrick & Caroline Quinn <p_cquinn at tpg.com.au> wrote:

    G’day



    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.



    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.



    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.



    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.



    Any opinions?



    Thanks



    Patrick Quinn

    Blue Mountains, Australia


    _______________________________________________
    Support Team.Net http://www.team.net/donate.html
    Suggested annual donation  $12.75
    Archive: http://www.team.net/archive
    Forums: http://www.team.net/forums

    Healeys at autox.team.net
    http://autox.team.net/mailman/listinfo/healeys

    Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/michael.oritt@gmail.com





------------------------------------------------------------------------------
  _______________________________________________
  Support Team.Net http://www.team.net/donate.html
  Suggested annual donation  $12.75
  Archive: http://www.team.net/archive
  Forums: http://www.team.net/forums

  Healeys at autox.team.net
  http://autox.team.net/mailman/listinfo/healeys

  Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/healeydoc@gmail.com





--------------------------------------------------------------------------------
_______________________________________________
Support Team.Net http://www.team.net/donate.html
Suggested annual donation  $12.75
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums

Healeys at autox.team.net
http://autox.team.net/mailman/listinfo/healeys

Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/healeydoc@sbcglobal.net

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20161115/50aa3473/attachment.html>