David
Oh yes, I see my error, I would be correct only if the engine rotation were
also reversed as well as the fan mounting. Duh!
Dan
----- Original Message -----
From "David McCartney" <yup1275 at earthlink.net>
To: "Dan Gillitzer" <dang@ticon.net>; "mg" <spridgets@autox.team.net>
Sent: Friday, March 04, 2005 11:43 AM
Subject: Re: O v e r h e a t i n g
> Oboy. We vary the boiling point by additives and presure.
> This means the motor is forced to live with more heat in terms
> of clearances and fuel mixture and timing. I don't know what
> happens, exactly, when boiling sets in, but it seems like an
> explosion. I'm too right-brained to grok the rest of the question.
>
> As to fans, the shape of the blade is unique and is quite directional.
> This is why they are marked. Look at one closely and ask yourself.
> The argument of behind or in front is a different matter.
>
> Dan Gillitzer wrote:
>
> > Sent: Friday, March 04, 2005 12:38 AM
> > Subject: Re: O v e r h e a t i n g
> >
> > > So the cooling questions come with March, hey?
> > >
> > > The instant going from hot to real hot tells me
> > > pressure leaves the system. The pressurized cooling
> > > system has a higher boiling point by virtue of that
> > > compression.
> > But would this really have an effect on the engine? The water may be NOT
> > boiling at one temp and boiling at the next temp, but it is still just
one
> > or two degrees different, the fact it is boiling doesn't mean it is a
great
> > deal hotter than a non-boiling solution. Or am I missing your point?
> > >
> > > Once you get to a certain amount of pressure, if
> > > there is no integrity, boiling occurs with permission
> > > to go with the laws of nature. The boiling point of
> > > plain water is what - 212F? For every pound of pressure,
> > > that number increases.
> > >
> > > It can be 225F and not boil, but drop pressure and
> > > the water has to boil, bigtime. Can Paul or some
> > > engineer-type give us examples? Maybe put this on
> > > a website?
> > >
> > > How the boiling point is altered by a 40-50%
> > > coolant additive and water wetter. How many degrees
> > > this harder-to boil mixture can withstand if compressed?
> > >
> > > How bout it? We could even add a list of causes that
> > > mean inefficiency, like lean mixture, loose fan belt (yes!),
> > > bad gasket, less water flow around #4 if the htr valve is shut.
> > > Rotten WP impeller, stuck thermostat, cramped hose,
> > > filthy radiator outside or in. Let us count the ways!!!
> > >
> > > The fan points the "right way", even when mounted backwards.
> > > If the curvature built into each blade isn't acting to scoop
> > > the air rather than push at it, it won't move much air.
> > It will move the same amount of air no matter which way it's pointing,
but
> > if the fan is mounted behind the radiator it should "pull" air through
the
> > radiator or if it's in front it should "blow" it back through the
radiator
> > to be efficient and not act against the movement of the car.
> >
> > Dan
> > >
> > > I shudda bean a engin-ear.
> > >
> > > David McCartney / Captain Rapture.
|