From: Rick v100 (rickv100@yahoo.com)
Date: Tue Apr 25 2006 - 01:59:14 PDT
Bill,
Why not just buy sheet material from McMaster-Carr and
make your own diaphraghm's using the one in a kit as a
master?
Rick
--- Bill <bill@armyfiretrucks.com> wrote:
> The Study you quote is 26 years old as it was penned
> in 1980. It is old
> information from a tree hugger slant.
>
> Even with all the positive hype the study
> recognized....
>
> ------------------------------------------------
>
> Carburetor and fuel pump. Ethanol of 160 proof or
> better can be used in
> most ordinary cars if the flow of fuel to the engine
> is increased. Fuel
> must be increased because the heat values for
> ethanol are lower than
> those for gasoline. Hence, the carburetor fuel jets
> must be enlarged,
> usually by about 40 percent. The fuel pump, now
> called upon to deliver
> twice as much volume as before, also must be
> augmented.
>
> Starting device. Another desirable addition, and
> one that is a
> necessity if you live in the northern United States,
> is some form of
> device for starting in cold weather. This device can
> be either a block
> heater, or a propane gas cylinder, solenoid valve
> and a
> pressure-reducing valve. The propane system is
> designed to inject the
> flammable gas into the air cleaner when you turn on
> the car starter
> switch. While propane gas will remain in the vapor
> state until it
> reaches the cylinder, alcohol becomes more difficult
> to vaporize as the
> thermometer drops below 50º F.
>
> Preheater. Even when vaporized in the carburetor,
> alcohol may condense
> on the cold walls of the intake manifold. Compared
> with gasoline,
> alcohol produces larger droplets and rapid
> coagulation that makes proper
> distribution of the fuel-air mixture to each
> cylinder more difficult.
> This is the reason for the gas starter, and for the
> addition of air
> preheating. The latter is accomplished by passing
> the incoming air over
> part of the exhaust system. Light sheet metal scoops
> are the usual
> solution, while flexible metal ducting, of a
> diameter somewhat greater
> than that of the carburetor inlet, may also be run
> against a section of
> exhaust pipe.
>
>
----------------------------------------------------------------------------
>
> MV CONTENT
>
> The effect on our older Gas burning HMV's will be
> devestating. The
> "rubber" components in the fuel pumps, fuel lines,
> and carbs will be
> eaten severely by this new blend. The stuff is so
> caustic that it can't
> be "blended" at the refinery and shipped by
> pipeline. The Raw Gasoline
> is shipped by pipeline...The Ethanol has to be
> shipped by barge or truck
> so it does not damage the pipeline and then mixed at
> the delivery depot
> prior to dealer delivery. They are willing to
> sacrifice the 6000 gallon
> tanker and not the whole pipeline system.
>
> It would now be a good time to switch to an electric
> fuel pump and
> replace all your fuel lines with modern alcohol
> immune fuel line. Also
> make sure your HMV insurance has a towing option.
> (You might want to do
> the same with your Civy Car. The automaker I work
> for expects a 50% plus
> failure rate on the fuel systems of pre 1995 cars.)
>
> The biggest problem will be with the WWII/Korean
> HMV's. If carb rebuild
> kits can't be found with the new alcohol resistant
> diaphram material
> then you can't successfully rebuild the carb. If it
> doesn't pay to tool
> up to produce these limited use diaphrams...lets say
> for a WWII Zenith
> M29 Carb used on M8's, M20's, Scout Cars, AA
> Searchlights....then they
> will have to be parked until another alternative
> (carb adaptation) can
> be found.
>
> I have been in the automobile business for 30
> years...this is going to
> be a nightmare of biblical proportion for the older
> vehicles. It will
> pull them off the Road....Something that the tree
> huggers have been
> trying to get done all along.
>
> And just wait until you have to replace your
> lawnmower, chainsaw,
> weedwacker, snowmobile, because of the fuel......
>
> Glenn Shaw wrote:
> > Some carefully done studies show up to a 5% gain
> in mileage and some
> > have show an average 5-10% decrease. Octane is
> higher for Gasohol.
> >
> > Depending on driving habits Gasohol show not be a
> problem for most
> > drivers and engine life will be improved.
> >
> > The following Table is from a study located at:
> >
> >
>
http://www.green-trust.org/2000/biofuel/dwg/dwgch2.htm
> which deals with
> > the Alcohol additives and the plusses and
> minusses.
> >
> > All in all considering we do not have to import it
> from overseas it
> > should be a big plus.
> >
> > Glenn.
> >
> >> FIGURE 2-2. COMPARISON OF IMPORTANT FUEL
> PROPERTIES
> >>
> >> /Properties/ /Typical Gasoline/ /Ethanol
> / /Gasohol/
> >>
> >> Oxygen content
> >>
> >> (Wt. % )
> >>
> >> 0 35 3.7
> >> Chemically correct air-fuel ratio 14.5 9
> 13.9
> >> Energy content (Btu/gal.) 114,00 75,000
> 110,000
> >> Vapor pressure (lbs./in.^2 ) 10.0 2.2
> 10.7
> >> Octane quality* 87 98 90
> >>
> >
> >
> >
> > Patrick Jankowiak wrote:
> >
> >> So, since the ethanol-based gas is going to get
> 25% less mileage, what
> >> do we add to the tank to get it back up? Granddad
> used to put a quart
> >> of diesel in for every 20 gallons.. I used to do
> this regularly in my
> >> carbureted 86 chrysler park avenue and got about
> 2MPG more going from
> >> 15mpg to 17. Later I went to 2ounces of acetone
> per 10 galons, and
> >> that worked very well, even better like 18 mpg.
> These things might not
> >> work on modern fuel injected vehicles and
> acetone's benefits are
> >> ruined by the alcohol in gasohol blends.
> >>
> >> we pay $3 for gas and the oil companies made
> record profits. go
> >> figure. On the ligher side, diesel for the MV is
> cheaper than gas
> >> again. sick...
> >>
> >> PJ
> >>
> >>
> >>
> >> Jess Minton wrote:
> >>
> >>> Want to know what the rest of the country is
> paying for gas??? check
> >>> out this neat map that shows prices by county..
> at least you don' t
> >>> live in California!! OOppps sorry Terri.
> >>>
> http://www.gasbuddy.com/gb_gastemperaturemap.aspx
> >>> Jess
> >>>
> >>>
> >>>
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> >>>
> >>
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> >>
> >
> > ===Mil-Veh is a member-supported mailing list===
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> >
> >
>
> --
> ..."A good plan executed violently today is better
> than a perfect plan
> executed at some indefinite time in the future.
> General George S.
> Patton, Jr."
>
> Any ship can be a minesweeper . . . . once.
>
>
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