Alan

> Once the engine is warmed up, the thermostat is
> typically wide open and does little except provide a restricted
> passageway that the engineers predetermined would be correct for
> optimal coolant flow. That is why taking the thermostat out can be
> problematic. Only in extremely cold weather would the thermostat
> continue to open and close in order to maintain the minimum operating
> temperature.

Given that the heat generated in the engine is significantly different at idle
and at full throttle, I find it hard to believe that there is a single point
that would be the correct flow rate.

I have changed thermostats in several cars and had the "steady state"
temperature change to be the new termostats rated temp.

I guess I disagree with the statement that "only in extrememly cold weather
would the thermostat continue to open and close in order to maintain the minimum
operating tempurature".

Unless of course a regular 20-40 degree Ohio spring/fall morning is "extrememly
cold" to some southern writer...

alan

dave

yup. that was going to be my next question. my 03 rubi is running at
210..had me concerned till I read this excellent thread.

daveZ

"Nathan Otis" <na@spam.smeat.net> wrote in message
news:2clkc.679$t63.55682@news.uswest.net...
> I know I'm arriving late to this party, but my Rubi, and indeed all 2003+
> TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
traffic,
> or runnin' AC on the trail (for shame!)
> n.
>
> "Shaggie" <travist34@snotmail.com> wrote in message
> news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > Mike Romain <romainm@sympatico.ca> wrote in
> > news:40917B1B.1DE010AA@sympatico.ca:
> >
> > > Too much of a good thing isn't sometimes...
> > >
> > > The t-stat is a metered hole designed to match the needs of the
> > > engine. When you take it out, you make too big a hole so the fluid
> > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > down.
> > >
> > > You can put a restricter in if you take the t-stat out.
> > >
> > > Some folks try a colder t-stat and extra fans to make them run cooler
> > > although I don't think it works well if at all.
> > >
> > > A colder street engine isn't any more efficient or anything. The best
> > > mileage is had with a warmed up engine.
> > >
> > > Mike
> >
> > What is considered to be a good operating temperature for my engine?
> > Anyone? '76 304. Running at about 210 right now. That too high?
> > What's a good range? Thank you.
> >
> > --
> >
> > I can hammer it back into shape later...
> > :wq!
>
>

dave

yup. that was going to be my next question. my 03 rubi is running at
210..had me concerned till I read this excellent thread.

daveZ

"Nathan Otis" <na@spam.smeat.net> wrote in message
news:2clkc.679$t63.55682@news.uswest.net...
> I know I'm arriving late to this party, but my Rubi, and indeed all 2003+
> TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
traffic,
> or runnin' AC on the trail (for shame!)
> n.
>
> "Shaggie" <travist34@snotmail.com> wrote in message
> news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > Mike Romain <romainm@sympatico.ca> wrote in
> > news:40917B1B.1DE010AA@sympatico.ca:
> >
> > > Too much of a good thing isn't sometimes...
> > >
> > > The t-stat is a metered hole designed to match the needs of the
> > > engine. When you take it out, you make too big a hole so the fluid
> > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > down.
> > >
> > > You can put a restricter in if you take the t-stat out.
> > >
> > > Some folks try a colder t-stat and extra fans to make them run cooler
> > > although I don't think it works well if at all.
> > >
> > > A colder street engine isn't any more efficient or anything. The best
> > > mileage is had with a warmed up engine.
> > >
> > > Mike
> >
> > What is considered to be a good operating temperature for my engine?
> > Anyone? '76 304. Running at about 210 right now. That too high?
> > What's a good range? Thank you.
> >
> > --
> >
> > I can hammer it back into shape later...
> > :wq!
>
>

dave

yup. that was going to be my next question. my 03 rubi is running at
210..had me concerned till I read this excellent thread.

daveZ

"Nathan Otis" <na@spam.smeat.net> wrote in message
news:2clkc.679$t63.55682@news.uswest.net...
> I know I'm arriving late to this party, but my Rubi, and indeed all 2003+
> TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
traffic,
> or runnin' AC on the trail (for shame!)
> n.
>
> "Shaggie" <travist34@snotmail.com> wrote in message
> news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > Mike Romain <romainm@sympatico.ca> wrote in
> > news:40917B1B.1DE010AA@sympatico.ca:
> >
> > > Too much of a good thing isn't sometimes...
> > >
> > > The t-stat is a metered hole designed to match the needs of the
> > > engine. When you take it out, you make too big a hole so the fluid
> > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > down.
> > >
> > > You can put a restricter in if you take the t-stat out.
> > >
> > > Some folks try a colder t-stat and extra fans to make them run cooler
> > > although I don't think it works well if at all.
> > >
> > > A colder street engine isn't any more efficient or anything. The best
> > > mileage is had with a warmed up engine.
> > >
> > > Mike
> >
> > What is considered to be a good operating temperature for my engine?
> > Anyone? '76 304. Running at about 210 right now. That too high?
> > What's a good range? Thank you.
> >
> > --
> >
> > I can hammer it back into shape later...
> > :wq!
>
>

dave

yup. that was going to be my next question. my 03 rubi is running at
210..had me concerned till I read this excellent thread.

daveZ

"Nathan Otis" <na@spam.smeat.net> wrote in message
news:2clkc.679$t63.55682@news.uswest.net...
> I know I'm arriving late to this party, but my Rubi, and indeed all 2003+
> TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
traffic,
> or runnin' AC on the trail (for shame!)
> n.
>
> "Shaggie" <travist34@snotmail.com> wrote in message
> news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > Mike Romain <romainm@sympatico.ca> wrote in
> > news:40917B1B.1DE010AA@sympatico.ca:
> >
> > > Too much of a good thing isn't sometimes...
> > >
> > > The t-stat is a metered hole designed to match the needs of the
> > > engine. When you take it out, you make too big a hole so the fluid
> > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > down.
> > >
> > > You can put a restricter in if you take the t-stat out.
> > >
> > > Some folks try a colder t-stat and extra fans to make them run cooler
> > > although I don't think it works well if at all.
> > >
> > > A colder street engine isn't any more efficient or anything. The best
> > > mileage is had with a warmed up engine.
> > >
> > > Mike
> >
> > What is considered to be a good operating temperature for my engine?
> > Anyone? '76 304. Running at about 210 right now. That too high?
> > What's a good range? Thank you.
> >
> > --
> >
> > I can hammer it back into shape later...
> > :wq!
>
>

Nathan Otis

I was a little concerned for the first week... Then I realized it just never
moves! (within reason, you understand... I'm sure the needle isn't broken
:-)
n.

"dave" <x1236@charter.netREMOVETHIS> wrote in message
news:tRukc.14336384$Id.2378974@news.easynews.com.. .
> yup. that was going to be my next question. my 03 rubi is running at
> 210..had me concerned till I read this excellent thread.
>
> daveZ
>
> "Nathan Otis" <na@spam.smeat.net> wrote in message
> news:2clkc.679$t63.55682@news.uswest.net...
> > I know I'm arriving late to this party, but my Rubi, and indeed all
2003+
> > TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
> traffic,
> > or runnin' AC on the trail (for shame!)
> > n.
> >
> > "Shaggie" <travist34@snotmail.com> wrote in message
> > news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > > Mike Romain <romainm@sympatico.ca> wrote in
> > > news:40917B1B.1DE010AA@sympatico.ca:
> > >
> > > > Too much of a good thing isn't sometimes...
> > > >
> > > > The t-stat is a metered hole designed to match the needs of the
> > > > engine. When you take it out, you make too big a hole so the fluid
> > > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > > down.
> > > >
> > > > You can put a restricter in if you take the t-stat out.
> > > >
> > > > Some folks try a colder t-stat and extra fans to make them run
cooler
> > > > although I don't think it works well if at all.
> > > >
> > > > A colder street engine isn't any more efficient or anything. The
best
> > > > mileage is had with a warmed up engine.
> > > >
> > > > Mike
> > >
> > > What is considered to be a good operating temperature for my engine?
> > > Anyone? '76 304. Running at about 210 right now. That too high?
> > > What's a good range? Thank you.
> > >
> > > --
> > >
> > > I can hammer it back into shape later...
> > > :wq!
> >
> >
>
>

Nathan Otis

I was a little concerned for the first week... Then I realized it just never
moves! (within reason, you understand... I'm sure the needle isn't broken
:-)
n.

"dave" <x1236@charter.netREMOVETHIS> wrote in message
news:tRukc.14336384$Id.2378974@news.easynews.com.. .
> yup. that was going to be my next question. my 03 rubi is running at
> 210..had me concerned till I read this excellent thread.
>
> daveZ
>
> "Nathan Otis" <na@spam.smeat.net> wrote in message
> news:2clkc.679$t63.55682@news.uswest.net...
> > I know I'm arriving late to this party, but my Rubi, and indeed all
2003+
> > TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
> traffic,
> > or runnin' AC on the trail (for shame!)
> > n.
> >
> > "Shaggie" <travist34@snotmail.com> wrote in message
> > news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > > Mike Romain <romainm@sympatico.ca> wrote in
> > > news:40917B1B.1DE010AA@sympatico.ca:
> > >
> > > > Too much of a good thing isn't sometimes...
> > > >
> > > > The t-stat is a metered hole designed to match the needs of the
> > > > engine. When you take it out, you make too big a hole so the fluid
> > > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > > down.
> > > >
> > > > You can put a restricter in if you take the t-stat out.
> > > >
> > > > Some folks try a colder t-stat and extra fans to make them run
cooler
> > > > although I don't think it works well if at all.
> > > >
> > > > A colder street engine isn't any more efficient or anything. The
best
> > > > mileage is had with a warmed up engine.
> > > >
> > > > Mike
> > >
> > > What is considered to be a good operating temperature for my engine?
> > > Anyone? '76 304. Running at about 210 right now. That too high?
> > > What's a good range? Thank you.
> > >
> > > --
> > >
> > > I can hammer it back into shape later...
> > > :wq!
> >
> >
>
>

Nathan Otis

I was a little concerned for the first week... Then I realized it just never
moves! (within reason, you understand... I'm sure the needle isn't broken
:-)
n.

"dave" <x1236@charter.netREMOVETHIS> wrote in message
news:tRukc.14336384$Id.2378974@news.easynews.com.. .
> yup. that was going to be my next question. my 03 rubi is running at
> 210..had me concerned till I read this excellent thread.
>
> daveZ
>
> "Nathan Otis" <na@spam.smeat.net> wrote in message
> news:2clkc.679$t63.55682@news.uswest.net...
> > I know I'm arriving late to this party, but my Rubi, and indeed all
2003+
> > TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
> traffic,
> > or runnin' AC on the trail (for shame!)
> > n.
> >
> > "Shaggie" <travist34@snotmail.com> wrote in message
> > news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > > Mike Romain <romainm@sympatico.ca> wrote in
> > > news:40917B1B.1DE010AA@sympatico.ca:
> > >
> > > > Too much of a good thing isn't sometimes...
> > > >
> > > > The t-stat is a metered hole designed to match the needs of the
> > > > engine. When you take it out, you make too big a hole so the fluid
> > > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > > down.
> > > >
> > > > You can put a restricter in if you take the t-stat out.
> > > >
> > > > Some folks try a colder t-stat and extra fans to make them run
cooler
> > > > although I don't think it works well if at all.
> > > >
> > > > A colder street engine isn't any more efficient or anything. The
best
> > > > mileage is had with a warmed up engine.
> > > >
> > > > Mike
> > >
> > > What is considered to be a good operating temperature for my engine?
> > > Anyone? '76 304. Running at about 210 right now. That too high?
> > > What's a good range? Thank you.
> > >
> > > --
> > >
> > > I can hammer it back into shape later...
> > > :wq!
> >
> >
>
>

Nathan Otis

I was a little concerned for the first week... Then I realized it just never
moves! (within reason, you understand... I'm sure the needle isn't broken
:-)
n.

"dave" <x1236@charter.netREMOVETHIS> wrote in message
news:tRukc.14336384$Id.2378974@news.easynews.com.. .
> yup. that was going to be my next question. my 03 rubi is running at
> 210..had me concerned till I read this excellent thread.
>
> daveZ
>
> "Nathan Otis" <na@spam.smeat.net> wrote in message
> news:2clkc.679$t63.55682@news.uswest.net...
> > I know I'm arriving late to this party, but my Rubi, and indeed all
2003+
> > TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
> traffic,
> > or runnin' AC on the trail (for shame!)
> > n.
> >
> > "Shaggie" <travist34@snotmail.com> wrote in message
> > news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > > Mike Romain <romainm@sympatico.ca> wrote in
> > > news:40917B1B.1DE010AA@sympatico.ca:
> > >
> > > > Too much of a good thing isn't sometimes...
> > > >
> > > > The t-stat is a metered hole designed to match the needs of the
> > > > engine. When you take it out, you make too big a hole so the fluid
> > > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > > down.
> > > >
> > > > You can put a restricter in if you take the t-stat out.
> > > >
> > > > Some folks try a colder t-stat and extra fans to make them run
cooler
> > > > although I don't think it works well if at all.
> > > >
> > > > A colder street engine isn't any more efficient or anything. The
best
> > > > mileage is had with a warmed up engine.
> > > >
> > > > Mike
> > >
> > > What is considered to be a good operating temperature for my engine?
> > > Anyone? '76 304. Running at about 210 right now. That too high?
> > > What's a good range? Thank you.
> > >
> > > --
> > >
> > > I can hammer it back into shape later...
> > > :wq!
> >
> >
>
>

Mike Romain

That is where your engine and cooling system balance out or where the
engine 'likes' to run....

My CJ7 is the same and no cold t-stat is going to change that.

Mike

Nathan Otis wrote:
>
> I was a little concerned for the first week... Then I realized it just never
> moves! (within reason, you understand... I'm sure the needle isn't broken
> :-)
> n.
>
> "dave" <x1236@charter.netREMOVETHIS> wrote in message
> news:tRukc.14336384$Id.2378974@news.easynews.com.. .
> > yup. that was going to be my next question. my 03 rubi is running at
> > 210..had me concerned till I read this excellent thread.
> >
> > daveZ
> >
> > "Nathan Otis" <na@spam.smeat.net> wrote in message
> > news:2clkc.679$t63.55682@news.uswest.net...
> > > I know I'm arriving late to this party, but my Rubi, and indeed all
> 2003+
> > > TJs run at 210. No matter if I'm cruisin' on the highway, stuck in
> > traffic,
> > > or runnin' AC on the trail (for shame!)
> > > n.
> > >
> > > "Shaggie" <travist34@snotmail.com> wrote in message
> > > news:c6ruuf$fn8su$1@ID-163201.news.uni-berlin.de...
> > > > Mike Romain <romainm@sympatico.ca> wrote in
> > > > news:40917B1B.1DE010AA@sympatico.ca:
> > > >
> > > > > Too much of a good thing isn't sometimes...
> > > > >
> > > > > The t-stat is a metered hole designed to match the needs of the
> > > > > engine. When you take it out, you make too big a hole so the fluid
> > > > > speeds up. This means it doesn't stay in the rad long enough to cool
> > > > > down.
> > > > >
> > > > > You can put a restricter in if you take the t-stat out.
> > > > >
> > > > > Some folks try a colder t-stat and extra fans to make them run
> cooler
> > > > > although I don't think it works well if at all.
> > > > >
> > > > > A colder street engine isn't any more efficient or anything. The
> best
> > > > > mileage is had with a warmed up engine.
> > > > >
> > > > > Mike
> > > >
> > > > What is considered to be a good operating temperature for my engine?
> > > > Anyone? '76 304. Running at about 210 right now. That too high?
> > > > What's a good range? Thank you.
> > > >
> > > > --
> > > >
> > > > I can hammer it back into shape later...
> > > > :wq!
> > >
> > >
> >
> >