Re: followup - good operating temp and thermostat questions
 

> 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

Re: followup - good operating temp and thermostat questions
 

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!
>
>

Re: followup - good operating temp and thermostat questions
 

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!
>
>

Re: followup - good operating temp and thermostat questions
 

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!
>
>

Re: followup - good operating temp and thermostat questions
 

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!
>
>

Re: followup - good operating temp and thermostat questions
 

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!
> >
> >
>
>

Re: followup - good operating temp and thermostat questions
 

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!
> >
> >
>
>

Re: followup - good operating temp and thermostat questions
 

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!
> >
> >
>
>

Re: followup - good operating temp and thermostat questions
 

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!
> >
> >
>
>

Re: followup - good operating temp and thermostat questions
 

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!
> > >
> > >
> >
> >