[Healeys] Thermostats

[David Nock]

  There are two sleeved thermostats available. One is the wax capsule style and the other is a bellows style. 
The bellows style is an old antique style the I would not recommend.

Which style did you have that failed.


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

Help us have our Founder Norman Nock inducteed into the 
British Sportscar Hall of Fame, You can vote for your favorites 
by visiting the site at.
www.britishsportscarhall.org


From: i erbs 
Sent: Thursday, September 13, 2018 4:08 PM
To: Bob Spidell 
Cc: Ahealey help 
Subject: Re: [Healeys] Thermostats

I had a nos sleeved Stat snd it failed just about closed.  Caused overheating. Been using a non sleeved one with no issues. 


Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone

On Thu, Sep 13, 2018, 3:42 PM Bob Spidell <bspidell at comcast.net> wrote:

  One other consideration:  I have heard--note: hearsay--that the OEM sleeved stats are of the 'fail closed' variety.  Have seen modern ones called 'fail open' or, even 'failsafe.'

  FWIW.

  Bob




  On 9/11/2018 3:44 PM, Roger Grace wrote:

    Steve,
    Yes agree with your take on the 160 F thermostats. The only possible benefit is that if you start with a lower coolant temp, when you hit traffic, it will take longer before the dreaded over temp zone is approached.
    As an aside, I have installed an oil temp gauge; very useful and a reminder just how long the engine (not coolant) takes to get up to temp. Trying to get in the habit of not going over 2000 RPM till OT is about 120F – often another 15-20 mins after the thermostat opens. 
    rg

    From: BJ8Healeys 
    Sent: Monday, September 10, 2018 12:44 PM
    To: 'healeys' 
    Subject: Re: [Healeys] Thermostats

    Fred, I personally believe a 160-deg. F thermostat used in an effort to "cool down" a Healey is useless.  A thermostat responds only to the temperature of the coolant flowing through it by opening up to increase coolant flow, and once it is open all the way at 160+, it is out of the loop and can't open further to cool more.  I am on the NC coast where winters are mild.  I once tried a 160 (non-sleeved) because I had one that someone gave me.  My BJ8 ran so cold that winter that I actually had to block part of the radiator to raise it to anywhere near normal.  Up there in the NC mountains, that would be even more of a problem for you.

    I use a 187 F (86 C) New Old Stock AC sleeved thermostat (AC part number 1572320) that I was able to score from lister Kees Oudesluijs.  I installed it along with an upgraded core in the radiator at the same time, so I can't really say how much improvement the thermostat alone did; but since the modification my car runs consistently at 170 - 180 in the hot summers of the NC coast, except when in stop-and-go traffic when it might make it to 190 or a bit above.  In winter, it runs at 160 - 170.  I can see the sleeve operate as the car warms up because the gauge will cycle between 160 and 190 until coolant temperature stabilizes.  That can take up to 50 miles.

    A friend placed an order later with Kees for several of the 190 F sleeved thermostats.  I got one of those as a spare.  Don't know if he has any left, or can get more.  As far as I know, the only sleeved thermostats available from the usual suspects are 160s and I wouldn't waste my money on them.

    I just Googled the AC part number and came up with this source:

    https://tinyurl.com/y9c6n53h

    Unfortunately, it does not post to the USA (but on the bright side, it offers free shipping!).  Maybe you could work out a deal with a UK lister to buy one for you and ship it to you.  £19.99 = $26.04 



    Steve Byers

    HBJ8L/36666

    BJ8 Registry

    AHCA Delegate at Large

    Havelock, NC  








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

  Archive: http://www.team.net/pipermail/healeys

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

  Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/eyera3000@gmail.com




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

Archive: http://www.team.net/pipermail/healeys

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

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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20180914/699fe031/attachment.html>