Diesel RVs: 01/01/08

Re: [Diesel-RVs] Water pump not working

Hi Michael,

Is the water line frozen any where? Check between the
water tank and the pump--and check after the pump.

--- Michael <mikensd@yahoo.com> wrote:

> My demand water pump quit working recently. I
> checked the 12v fuse,
> which is good, and checked the breakers on the
> inverter. Also checked
> the 120v breakers, which should have nothing to do
> with the 12v water
> pump. I get no power at any of the four pump
> switches, although I
> thought the pilot light flashed momentarily one time
> on one switch.
> Could have been my imagination. I had filled the
> tank from the
> pressurized city water supply a few days earlier,
> and the pump has not
> worked since filling the tank. I did not see any
> water coming out of
> the vent screen on the gravity fill opening as the
> manual says to look
> for, so didn't think I was overfilling it. I'm
> wandering if I could
> have overfilled the tank and damaged the system even
> w/o seeing any
> water from the vent screen. If I did overfill it,
> what can I do to
> get the pump working again? Also, could there be
> any other fuses, etc
> that I'm missing? When I push the switch, the pump
> makes no noise at
> all as if no power is getting to it or it's
> completely destroyed. I'm
> in cold weather, but keep the bay where the pump is
> located at about
> 42 degrees.
>
> Mike
> 2007 Bounder 38V
>
>
>
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Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis incommodat
mailto:pianotuna@yahoo.com http://us.geocities.com/drpt1948/
3004 Grant Rd. REGINA, SK, S4S 5G7
306-539-0716 or 1-888-29t-uner

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RE: [Diesel-RVs] Re: 07 Toyota/Nitrogen

Since air is 70% nitrogen, I am not sure what you mean about temperature
stable.

John

________________________________

From: Diesel-RVs@yahoogroups.com [mailto:Diesel-RVs@yahoogroups.com] On
Behalf Of mydogscar
Sent: Tuesday, January 01, 2008 4:20 PM
To: Diesel-RVs@yahoogroups.com
Subject: [Diesel-RVs] Re: 07 Toyota/Nitrogen

Nitrogen has been used in race car tires for years. (Nascar) Oh, and
the space shuttle (NASA)...

Unlike plain air, it is temperature stable. And as SF stated, air loss
is negligible. These things result in consistent tire performance,
longevity and safety.

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[Diesel-RVs] Re: HP/TQ Graph

Would a better graph be HP or Torque vs. total resistance (rolling
and wind)? Seems the point where they cross would be best MPH for
distance. Works in airplanes, why not RVs? - Tony

--- In Diesel-RVs@yahoogroups.com, "Russ Waterhouse"
<mredsel890@...> wrote:
>
> Maybe I should go back to the beginning?? I will quiet down.
> Russ
> ----- Original Message -----
> From: "Bill Halberstadt" <halberstadt@...>
> To: <Diesel-RVs@yahoogroups.com>
> Sent: Monday, December 31, 2007 8:14 PM
> Subject: [Diesel-RVs] Re: HP/TQ Graph
>
>
> : Yes, I have plotted HP and torque on the same graph. The rest of
your
> : post makes no sense, as we were talking about where the torque
and HP
> : curves cross (and the lack of meaning to that), not where
the "high
> : torque point" is.
> :
> : Bill Halberstadt
> :
> : --- In Diesel-RVs@yahoogroups.com, "Russ Waterhouse"
<mredsel890@>
> : wrote:
> : >
> : > I really think you have never plotted RPM curve and torque
curve on
> : the same graph to get
> : > the maximum or "sweet spot". There is only one place, no matter
what
> : numbers you use at
> : > the edge of the graph. RPM will always be the same curve as
far as
> : numbers go, and
> : > torque will always be the same curve using any set of numbers,
no
> : matter what numbers you
> : > use... changing the numbers on the edge of the graph will not
change
> : the high torque point
> : > of an engine.
> : > Happy New Year Anyway.
> : > Russ
> : > ----- Original Message -----
> : > From: "Bill Halberstadt" <halberstadt@>
> : > To: <Diesel-RVs@yahoogroups.com>
> : > Sent: Monday, December 31, 2007 2:19 PM
> : > Subject: [Diesel-RVs] Re: HP/TQ Graph
> : >
> : >
> : > : Fred is exactly correct. Where the HP and torque curves cross
has no
> : > : meaning whatever. You can make them cross anywhere you want
(or not
> : > : cross at all) by choosing your scales. This is because you are
> : > : plotting two different things which have "RPM" in common for
one axis,
> : > : but do not have the same units on the other axis. Therefore,
the way
> : > : you scale that second axis for each of the two curves
determines the
> : > : scaling (shape) of the two curves independently.
> : > :
> : > : Bill Halberstadt
> : > :
> : > : --- In Diesel-RVs@yahoogroups.com, FLW300@ wrote:
> : > : >
> : > : > Hi Jim
> : > : >
> : > : > I think the "crossing point" is a function of the scales
chosen by
> : > : the folks
> : > : > that make the graph. I think the more important data is
where the
> : > : "peaks"
> : > : > are located for each curve, and how "flat" the peaks are.
Racing
> : > : engines have
> : > : > sharp peaks and fall off rapidly, whereas engines designed
for
> : > : towing a load
> : > : > have flatter wider peaks.
> : > : >
> : > : > At least, that's what I remember from way back when I took
engine
> : > : design in
> : > : > college!
> : > : >
> : > : > Here's a lot of data showing many auto engine HP vs Torque
Vs RPM
> : > : graphs:
> : > : >
> : > : > _http://www.rri.se/index.php?DN=28_
> : (http://www.rri.se/index.php?DN=28)
> : > : >
> : > : > Fred White 02 Windsor, 05 Pilot
> : > : > Polk City, FL & Trenton, ME
> : > : >
> : > : >
> : > : >
> : > : >
> : > : > In a message dated 12/31/2007 9:38:09 A.M. Eastern Standard
Time,
> : > : > jflu653@ writes:
> : > : >
> : > : > Not really sure about big diesels but gas engines all
cross the
> : HP and
> : > : > Torque curves at 5800 rpm. This is a function of the
formula used
> : > : to compute
> : > : > HP using the measured torque at the dyno.
> : > : > Jim & Sally Fluckey
> : > : >
> : > : >
> : > : >
> : > : >
> : > : > **************************************See AOL's top rated
recipes
> : > : > (http://food.aol.com/top-rated-recipes?
NCID=aoltop00030000000004)
> : > : >
> : > : >
> : > : > [Non-text portions of this message have been removed]
> : > : >
> : > :
> : > :
> : > :
> : > :
> : > : --------------------------------------------
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> : > : Please sign with your name (real or online name) and include
the
> : RV model you have.
> : > :
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> : > :
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> : > :
> : > :
> : > :
> : > :
> : >
> :
> :
> :
> :
> : --------------------------------------------
> : Off-topic posts will be removed.
> : Please sign with your name (real or online name) and include the
RV model you have.
> :
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> :
> :
> :
> :
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