[AT] Ram 3.0 liter Dieselgate

[Cecil Bearden]

I suppose that I have been sheltered from the smog and bad air quality 
living my entire life in Oklahoma.   Here, the air is changed at least 
every 15  minutes!!  The wind here is a minimum 8 mph and that low is 
only experienced 3 or 4 days a month.   Wile I realize that man does 
have some effect on the air as Grant discussed about California,  all 
that work is lost when a Volcano blows its lid somewhere in the World.  
Or as mentioned, another country puts up Power plants with no regard to 
emissions. Perhaps we need to station reverse wind generators on our 
coasts that will blow the pollution away from out nation.

My view is getting very jaded as I get older.  I have worked since I was 
8 years old to get ahead.  Now as I each the age when I should be able 
to enjoy the fruits of that labor, I have to be constantly vigilant to 
prevent politicians, thieves, foreign governments, and the poor excuses 
for roadways in this state from taking it all away.   As Will Rogers 
once said,  "We sure are not getting all the government we are paying 
for" !!

I mention the roadways because Oklahoma has some of the worst in the 
nation, and our County roadways are like Asphalt trails after a low 
level air raid.  As a matter of fact, last week, my neighbor found a 50 
lb anvil at the side of the road near an especially rough section!!!!

On a better note, I rebuilt the injection pump on the 60KW Onan 
Generator with the Allis Chalmers engine (same as in a 190XT tractor).  
It would run about 3 minutes and die after I installed it,  The shut off 
solenoid decided to fail when I put it back together.   $85 and a 1 hour 
trip to the pump shop fixed that...

The Roosa Master and CAV pumps have a vinyl ring between the governor 
and the drive plate inside the pump.  Time and fuel additives cause the 
ring to deteriorate.   If you have ever heard a John deere rev up and 
down while setting idle, that  is usually the problem if the pump is 20 
years old.  There is a solid governor drive plate now available.  It is 
$50 extra and most shops don't replace it as the new vinyl ring is 
included in the $50 gasket kit. While it took me over a day to get the 
pump rebuilt, the pump shop would have charged $500 plus another $185 
for the parts I installed.   The pump has to be taken apart to replace 
that vinyl ring, but if the engine was running OK before, The 
calibration stand work is not really necessary.  If any of you guys want 
to try to rebuild your own pumps I can give you places to call for 
parts, and links to rebuild literature.

Cecil in OKla

On 1/13/2017 3:59 AM, Stephen Offiler wrote:
> Don, I am widely in agreement with essentially everything your son wrote,
> with just one tiny nitpick. The urea injection systems have nothing to do
> with particulates, they're for controlling NOx only.  I'd bet he knows this
> and just slipped on the wording.  Particulates are handled by a completely
> separate device in the exhaust system called the Diesel Particulate Filter,
> a physical filter, not a chemistry experiment.
>
> The beauty of the diesel engine is that it can run at very high cylinder
> temperatures and pressures with very lean fuel mixtures.  This creates
> higher thermal efficiency, simply put, more heat from the burning fuel
> moves the vehicle down the road and less goes out the radiator and
> exhaust.  However high temperature and pressure forces nitrogen to hook up
> with oxygen, creating NOx compounds (mostly NO2, NO3, and N2O).  Can't have
> it both ways, says the laws of physics.  Either reduce NOx by reducing
> cylinder temperature and pressure in various ways (his choice "b")
> including lower compression, lower turbo boost, greater EGR, etc... thus
> creating a diesel that performs more like a gas engine; or reduce NOx using
> a chemistry lab behind the engine to break apart the NOx back into harmless
> N2 and O2 molecules (his choice "a")
>
> On a separate note, thanks also to Grant Brians for lending some real-world
> perspective on the reasons our government chose to control auto emissions
> and the success they achieved.
>
> SO
>
>
> On Thu, Jan 12, 2017 at 9:44 PM, Don <don.bowen at earthlink.net> wrote:
>
>> On 1/12/2017 5:45 PM, David Bruce wrote:
>>> The other issue is the regs being reasonable but if they had to cheat to
>>> meet the regs there is an issue. Not an insider but seems to me if one
>>> was doing it others were.
>> The following is from my son on the earlier VW scandal.  He is an
>> account executive for Jaguar Land Rover and has written several books on
>> automobile performance modifications.
>>
>> "I meant to send this to you - I sent the below response to people at my
>> agency who were asking about the scandal:
>>
>> This goes back to the simple fact that there are only two possible ways
>> for a Diesel engine to meet CA/EPA Nox and particulate emissions: a)
>> Urea injection or b) Destroy performance and engine life. Choose a and
>> the designers have to find a way to make the car not run when the tank
>> runs dry, and risk annoying consumers who are used to low maintenance
>> engines. Choose b and no one will buy your Diesel car.
>>
>> Here’s the list of manufacturers that chose to use Urea injection:
>> Jaguar Land Rover, BMW, Mercedes, Ford, Chevy, Allison, Chrysler
>> (Cummins), Volvo trucks, Audi, VW (Passat)
>>
>> Here’s the manufacturers that chose to go without Urea: IH/Navistar
>> (almost destroyed their company when the engines failed early and had to
>> be recalled), Mazda (caused them to delay/cancel launch of the Mazda6 in
>> the U.S.), VW (except Passat)
>>
>> VW thought they could get the best of both worlds by fooling the
>> regulators into thinking the cars are cleaner than they really are. ALL
>> manufacturers game the EPA testing to some extent but this case is
>> extremely egregious because of the difference in how the cars run. And
>> of course because they got caught.
>>
>> Happy to chat more if anyone wants more back story – this is one of the
>> reasons Diesel engines are not popular in the U.S."
>>
>> --
>> Don Bowen       --AD0NB--
>>
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