burning oil?

[abatzis2@hotmail.com (Michael Abatzis)]

is that true? isn't normal operating temp > the thermo opening temp? so when 
the engine's warm, the thermo isn't open all the way? my impression was the 
thermostat is either open or closed...


-Michael Abatzis
Hotlanta! GA
1988 Scirocco 2L 16v RIP-->parting, finally taking orders: 
www.learnlink.emory.edu/~mabatzi/mikes_page1.html
1987 Scirocco 2L 16v...




>From: Andrew Basterfield <list@cemetery.homeunix.org>
>To: "Michael Abatzis" <abatzis2@hotmail.com>
>CC: scirocco-l@scirocco.org
>Subject: Re: burning oil?
>Date: Tue, 25 Feb 2003 04:26:06 +0000
>
>On Tue, 25 Feb 2003 03:49:24 +0000
>"Michael Abatzis" <abatzis2@hotmail.com> wrote:
>
> > i've never understood this logic. let's for a moment assume that
> > coolant temp in a warmed up engine is >100' (which i think is valid).
> > at this point, both low and hi temp tstats are open, and coolant is
> > going through both radiators. how are these two engines different at
> > this point, and why would they run at different operating temps? yes,
> > the lo temp stat would open earlier (say 70'), which may mean that it
> > takes the engine longer to reach it's max operating temp, but i say it
> > would still equilibrate at the same operating temp.
>
>The radiator should be capable of dissipating more heat than the engine
>can give it. This means at 'normal' temperature and 'normal' load the
>thermostat isn't fully open - it can open a little more. Once the
>thermostat is fully open it looses all ability to regulate the
>temperature, and the coolant temp becomes the equilibrium point between
>the heat the engine gives off and the heat the rad can dissipate.
>
>If you have a choked rust filled radiator putting in a low temp
>thermostat won't help. You will need a larger capacity radiator as well
>as a low-temp thermostat to reduce the coolant temperature.
>
>--Andrew


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