Radiator temp in/out and temp gauge readings

[transit360]

I just got my new Raytek infrared temp gun and was getting some
shots on my 8.3 Cummins pusher in my '98 QBRE Partybus. I shot the
top of the radiator and it read 200 degrees, which is what my bus
temp gauge said. I shot the lower radiator hose and it read 130
degrees.
I made sure to test location and reposition my gun several
times, and this is what I got. Should there be such a drastic change
in temp through the radiator? I was expecting about 15-20 degrees
difference. Could this indicate any problems?

Second question: My temp gauge on the dash has green (safe)
markings up to 220 degrees. Past 220, it reads in the red. My bird
typically runs at 200 degrees while riding. Is this normal? Seems a
little on the warm side but this is my first Cummins as I have dealt
primarily with 8.2 and 6V71 Detroits in the past. My other Bluebird
partybus (same exact bus) runs at about 190, although I haven't
confirmed it with the temp gun like the first.

Thanks,
Steve
2 '98 Bluebird QBRE Partybuses

[Al]

Steve,
Seems to be a little on the hot side. My BMC 37' runs about 170 -
180 all day long. Might be time for a flush. I don't think I have
ever been in the 200 degrees range. I will double check to make
sure and let you know tomorrow.

Al & Kathy Johnson
'96 BMC 37'
Mandeville, Louisiana
Leaving for Mount Rushmore on Wednesday

--- In WanderlodgeForum@yahoogroups.com, "transit360"
wrote:
> I just got my new Raytek infrared temp gun and was getting some
> shots on my 8.3 Cummins pusher in my '98 QBRE Partybus. I shot the
> top of the radiator and it read 200 degrees, which is what my bus
> temp gauge said. I shot the lower radiator hose and it read 130
> degrees.
> I made sure to test location and reposition my gun several
> times, and this is what I got. Should there be such a drastic
change
> in temp through the radiator? I was expecting about 15-20 degrees
> difference. Could this indicate any problems?
>
> Second question: My temp gauge on the dash has green (safe)
> markings up to 220 degrees. Past 220, it reads in the red. My bird
> typically runs at 200 degrees while riding. Is this normal? Seems
a
> little on the warm side but this is my first Cummins as I have
dealt
> primarily with 8.2 and 6V71 Detroits in the past. My other
Bluebird
> partybus (same exact bus) runs at about 190, although I haven't
> confirmed it with the temp gun like the first.
>
> Thanks,
> Steve
> 2 '98 Bluebird QBRE Partybuses

[erniecarpet@...]

Al- are you going through Montana? Ernie- currently in livingston


[Non-text portions of this message have been removed]

[erniecarpet@...]

been here for over a month without the coach, staying in an upstairs un air
conditioned room. going back to texas this weekend to get coach with4 air
condtioners- and freeze my butt off


[Non-text portions of this message have been removed]

[steve wicker]

Just to let everyone know we DID drive these Bluebirds all the way from
Florida about 500 when we purchased them and the hotter of the two never got
over 200. This is in Florida heat with the A/C on. Even when climbing a mountain
grade it didn't get over 200.

Steve
2 '98 QBRE Partybuses

Al wrote:
Steve,
Seems to be a little on the hot side. My BMC 37' runs about 170 -
180 all day long. Might be time for a flush. I don't think I have
ever been in the 200 degrees range. I will double check to make
sure and let you know tomorrow.

Al & Kathy Johnson
'96 BMC 37'
Mandeville, Louisiana
Leaving for Mount Rushmore on Wednesday

--- In WanderlodgeForum@yahoogroups.com, "transit360"
wrote:
> I just got my new Raytek infrared temp gun and was getting some
> shots on my 8.3 Cummins pusher in my '98 QBRE Partybus. I shot the
> top of the radiator and it read 200 degrees, which is what my bus
> temp gauge said. I shot the lower radiator hose and it read 130
> degrees.
> I made sure to test location and reposition my gun several
> times, and this is what I got. Should there be such a drastic
change
> in temp through the radiator? I was expecting about 15-20 degrees
> difference. Could this indicate any problems?
>
> Second question: My temp gauge on the dash has green (safe)
> markings up to 220 degrees. Past 220, it reads in the red. My bird
> typically runs at 200 degrees while riding. Is this normal? Seems
a
> little on the warm side but this is my first Cummins as I have
dealt
> primarily with 8.2 and 6V71 Detroits in the past. My other
Bluebird
> partybus (same exact bus) runs at about 190, although I haven't
> confirmed it with the temp gun like the first.
>
> Thanks,
> Steve
> 2 '98 Bluebird QBRE Partybuses





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Steve Wicker
http://www.360partybus.com
828-236-2841/301-0245


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[Non-text portions of this message have been removed]

[mrdonut12]

Steve,
You've established that the radiator, at the current flow
rate, is capable of exchanging heat.
What you haven't established is if there's any water flow.
With that deep a drop in temperature, does that tell you that maybe
the coolant is flowing too slowly?
Use your Raytek infrared temp gun to tell you if the thermostat
is working properly.

George Witt
81 FC 35
Lincoln, Nebraska


--- In WanderlodgeForum@yahoogroups.com, "transit360"
wrote:
> I just got my new Raytek infrared temp gun and was getting some
> shots on my 8.3 Cummins pusher in my '98 QBRE Partybus. I shot the
> top of the radiator and it read 200 degrees, which is what my bus
> temp gauge said. I shot the lower radiator hose and it read 130
> degrees.
> I made sure to test location and reposition my gun several
> times, and this is what I got. Should there be such a drastic change
> in temp through the radiator? I was expecting about 15-20 degrees
> difference. Could this indicate any problems?
>
> Second question: My temp gauge on the dash has green (safe)
> markings up to 220 degrees. Past 220, it reads in the red. My bird
> typically runs at 200 degrees while riding. Is this normal? Seems a
> little on the warm side but this is my first Cummins as I have dealt
> primarily with 8.2 and 6V71 Detroits in the past. My other Bluebird
> partybus (same exact bus) runs at about 190, although I haven't
> confirmed it with the temp gun like the first.
>
> Thanks,
> Steve
> 2 '98 Bluebird QBRE Partybuses

[Tom Warner]

George what he established is that the radiator is not exhanging heat.
There should be only about a 10-15 degree difference between the temp at
the top and bottom. If not the coolant is not flowing more then likely
because the thermostat is not open.

tom
1982 FC35
Vernon Center,Ny

At 02:15 AM 7/20/2005 +0000, you wrote:
>Steve,
> You've established that the radiator, at the current flow
>rate, is capable of exchanging heat.
> What you haven't established is if there's any water flow.
>With that deep a drop in temperature, does that tell you that maybe
>the coolant is flowing too slowly?
> Use your Raytek infrared temp gun to tell you if the thermostat
>is working properly.
>
> George Witt
> 81 FC 35
> Lincoln, Nebraska
>
>
>--- In WanderlodgeForum@yahoogroups.com, "transit360"
> wrote:
> > I just got my new Raytek infrared temp gun and was getting some
> > shots on my 8.3 Cummins pusher in my '98 QBRE Partybus. I shot the
> > top of the radiator and it read 200 degrees, which is what my bus
> > temp gauge said. I shot the lower radiator hose and it read 130
> > degrees.
> > I made sure to test location and reposition my gun several
> > times, and this is what I got. Should there be such a drastic change
> > in temp through the radiator? I was expecting about 15-20 degrees
> > difference. Could this indicate any problems?
> >
> > Second question: My temp gauge on the dash has green (safe)
> > markings up to 220 degrees. Past 220, it reads in the red. My bird
> > typically runs at 200 degrees while riding. Is this normal? Seems a
> > little on the warm side but this is my first Cummins as I have dealt
> > primarily with 8.2 and 6V71 Detroits in the past. My other Bluebird
> > partybus (same exact bus) runs at about 190, although I haven't
> > confirmed it with the temp gun like the first.
> >
> > Thanks,
> > Steve
> > 2 '98 Bluebird QBRE Partybuses
>
>
>
>
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[Tom Warner]

Ernie what in god you doing out in Montanny? I still have fond memories of
hunting and fishing there when I lived in Great Falls. I joined the Masonic
lodge there in 1968.

tom
1982 Fc35
Vernon Center,NY

At 11:07 PM 7/19/2005 -0400, you wrote:
>Al- are you going through Montana? Ernie- currently in livingston
>
>
>[Non-text portions of this message have been removed]
>
>
>
>----------
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>
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> "<http://groups.yahoo.com/group/WanderlodgeForum>WanderlodgeForum" on the web.
> *
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>
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[transit360]

Tom and George,

OK, sorry guys. I forgot to mention I also shot a temp reading on
the hose going in and out of the water pump, both at around 200
degrees also.
To be honest with you, I'm not sure where my thermostat is. I'm
assuming it's in a usual spot near the water pump, but I've never
worked on the 8.3 Cummins before, and I've been trying to find a
manual for a month. But it should be a no-brainer.
So I'm gathering that we're suspecting improper coolant flow,
which could be caused by a stuck thermostat or possibly a weak water
pump? I'm assuming when I locate the thermostat that I should be
able to shoot it at operating temp and the temp should be the same
on both sides, otherwise a temp difference would indicate it's
closed, yes? Sounds feasible.
However, this is pretty much how this bus has always run,
around 200 degrees on the highway. Wouldn't it overheat if the
thermostat stayed closed? Could it be partially open or closed? That
would restrict flow but maybe not enough to totally overheat the
engine?

Thanks,
Steve
2 '98 Bluebird QBRE Partybuses

--- In WanderlodgeForum@yahoogroups.com, Tom Warner
wrote:
> George what he established is that the radiator is not exhanging
heat.
> There should be only about a 10-15 degree difference between the
temp at
> the top and bottom. If not the coolant is not flowing more then
likely
> because the thermostat is not open.
>
> tom
> 1982 FC35
> Vernon Center,Ny
>
> At 02:15 AM 7/20/2005 +0000, you wrote:
> >Steve,
> > You've established that the radiator, at the current flow
> >rate, is capable of exchanging heat.
> > What you haven't established is if there's any water flow.
> >With that deep a drop in temperature, does that tell you that
maybe
> >the coolant is flowing too slowly?
> > Use your Raytek infrared temp gun to tell you if the
thermostat
> >is working properly.
> >
> > George Witt
> > 81 FC 35
> > Lincoln, Nebraska
> >
> >
> >--- In WanderlodgeForum@yahoogroups.com, "transit360"
> > wrote:
> > > I just got my new Raytek infrared temp gun and was getting
some
> > > shots on my 8.3 Cummins pusher in my '98 QBRE Partybus. I shot
the
> > > top of the radiator and it read 200 degrees, which is what my
bus
> > > temp gauge said. I shot the lower radiator hose and it read 130
> > > degrees.
> > > I made sure to test location and reposition my gun several
> > > times, and this is what I got. Should there be such a drastic
change
> > > in temp through the radiator? I was expecting about 15-20
degrees
> > > difference. Could this indicate any problems?
> > >
> > > Second question: My temp gauge on the dash has green (safe)
> > > markings up to 220 degrees. Past 220, it reads in the red. My
bird
> > > typically runs at 200 degrees while riding. Is this normal?
Seems a
> > > little on the warm side but this is my first Cummins as I have
dealt
> > > primarily with 8.2 and 6V71 Detroits in the past. My other
Bluebird
> > > partybus (same exact bus) runs at about 190, although I haven't
> > > confirmed it with the temp gun like the first.
> > >
> > > Thanks,
> > > Steve
> > > 2 '98 Bluebird QBRE Partybuses
> >
> >
> >
> >
> >----------
> >YAHOO! GROUPS LINKS
> >
> > * Visit your group
>
> "<http://groups.yahoo.com/group/WanderlodgeForum>WanderlodgeForum"
on the web.
> > *
> > * To unsubscribe from this group, send an email to:
> > *
> > subject=Unsubscribe>WanderlodgeForum-unsubscribe@yahoogroups.com
> >
> > *
> > * Your use of Yahoo! Groups is subject to the
> > <http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service.
> >
> >
> >----------

[mrdonut12]

Steve,
Forgive me if I'm a little short with you, but I'm a professional
mechanic with over 30 years experience, ASE Certified Master
Technician, Advanced L-1 Engine Performance Certification,
Service Advisor Certification and I own one of the best auto repair
shops in the US. In 10 years in business, my shop has fixed over
34,000 cars.
I told you 3 weeks ago, the first step in fixing this thing is
to install new factory thermostats. You have to establish baselines
of performance in a system in order to fix it. No other part of the
cooling system can be properly evaluated with malfunctioning
thermostats in place.
Thermostats get old, they wear out and they break.
You asked my advice, I gave it to you, you argued with me and
went out and bought a new toy that costs about 7 times what a
thermostat would cost and now you want me to answer more questions.
My question to you is, do you want to screw around or do you want
to fix this thing?

George Witt
81 FC 35
Lincoln, Nebraska

--- In WanderlodgeForum@yahoogroups.com, "transit360"
wrote:
> Tom and George,
>
> OK, sorry guys. I forgot to mention I also shot a temp reading on
> the hose going in and out of the water pump, both at around 200
> degrees also.
> To be honest with you, I'm not sure where my thermostat is. I'm
> assuming it's in a usual spot near the water pump, but I've never
> worked on the 8.3 Cummins before, and I've been trying to find a
> manual for a month. But it should be a no-brainer.
> So I'm gathering that we're suspecting improper coolant flow,
> which could be caused by a stuck thermostat or possibly a weak water
> pump? I'm assuming when I locate the thermostat that I should be
> able to shoot it at operating temp and the temp should be the same
> on both sides, otherwise a temp difference would indicate it's
> closed, yes? Sounds feasible.
> However, this is pretty much how this bus has always run,
> around 200 degrees on the highway. Wouldn't it overheat if the
> thermostat stayed closed? Could it be partially open or closed? That
> would restrict flow but maybe not enough to totally overheat the
> engine?
>
> Thanks,
> Steve
> 2 '98 Bluebird QBRE Partybuses
>
> --- In WanderlodgeForum@yahoogroups.com, Tom Warner
> wrote:
> > George what he established is that the radiator is not exhanging
> heat.
> > There should be only about a 10-15 degree difference between the
> temp at
> > the top and bottom. If not the coolant is not flowing more then
> likely
> > because the thermostat is not open.
> >
> > tom
> > 1982 FC35
> > Vernon Center,Ny
> >
> > At 02:15 AM 7/20/2005 +0000, you wrote:
> > >Steve,
> > > You've established that the radiator, at the current flow
> > >rate, is capable of exchanging heat.
> > > What you haven't established is if there's any water flow.
> > >With that deep a drop in temperature, does that tell you that
> maybe
> > >the coolant is flowing too slowly?
> > > Use your Raytek infrared temp gun to tell you if the
> thermostat
> > >is working properly.
> > >
> > > George Witt
> > > 81 FC 35
> > > Lincoln, Nebraska
> > >
> > >
> > >--- In WanderlodgeForum@yahoogroups.com, "transit360"
> > > wrote:
> > > > I just got my new Raytek infrared temp gun and was getting
> some
> > > > shots on my 8.3 Cummins pusher in my '98 QBRE Partybus. I shot
> the
> > > > top of the radiator and it read 200 degrees, which is what my
> bus
> > > > temp gauge said. I shot the lower radiator hose and it read 130
> > > > degrees.
> > > > I made sure to test location and reposition my gun several
> > > > times, and this is what I got. Should there be such a drastic
> change
> > > > in temp through the radiator? I was expecting about 15-20
> degrees
> > > > difference. Could this indicate any problems?
> > > >
> > > > Second question: My temp gauge on the dash has green (safe)
> > > > markings up to 220 degrees. Past 220, it reads in the red. My
> bird
> > > > typically runs at 200 degrees while riding. Is this normal?
> Seems a
> > > > little on the warm side but this is my first Cummins as I have
> dealt
> > > > primarily with 8.2 and 6V71 Detroits in the past. My other
> Bluebird
> > > > partybus (same exact bus) runs at about 190, although I haven't
> > > > confirmed it with the temp gun like the first.
> > > >
> > > > Thanks,
> > > > Steve
> > > > 2 '98 Bluebird QBRE Partybuses
> > >
> > >
> > >
> > >
> > >----------
> > >YAHOO! GROUPS LINKS
> > >
> > > * Visit your group
> >
> > "<http://groups.yahoo.com/group/WanderlodgeForum>WanderlodgeForum"
> on the web.
> > > *
> > > * To unsubscribe from this group, send an email to:
> > > *
> > > > subject=Unsubscribe>WanderlodgeForum-unsubscribe@yahoogroups.com
> > >
> > > *
> > > * Your use of Yahoo! Groups is subject to the
> > > <http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service.
> > >
> > >
> > >----------