Joe wrote:
Has anyone here converted your boats engine over to burn bio-fuels?

The smell of french fry, or duncan doughnuts exhaust fumes sure would
be nicer than diesel.

Here in Houston we have a dealer than will deliver and it's cheaper
than Diesel fuel.

Joe

Deisel engines are designed to run on this stuff but it depends on the
level of filtering that has been done to it. If it is used french fry
grease you should filter it and probably mix it with either bio-deisel
or regular deseil. You can also heat it to get some better
performance. There is a ton of info on this on the net. If you want
it to be the same grade as deisel fuel with all the same perfance
qualities you need to do a little refining yourself. It's doable at
home but is a little complicated. It's propably not worth the time
and added expense to you but you can mix well filtered french fry
grease with deisel fuel and at a pretty good ratio (something like
50-75% grease depending on where you live) and get similar performance
characteristics. One thing I have heard repeatedly is to not leave
the grease in the line when the engine is off. If it gets cold it
will thicken and can cause all sorts of problems when trying to start
up. Kill the fuel pump and let it die on its own. This should be
common practice anyways but it's really important if you are using
unrefined grease as your fuel.

A lot of people like the smell of the exhaust but they say it always
makes them hungry.

....
Deisel engines are designed to run on this stuff but it depends on the
level of filtering that has been done to it. ...

I was jawing with the guy at the counter of the local injector pump
specialists a couple of months ago and he claimed that bio-diesel was
causing pump failures. His assertion was that regular diesel has
lubricants added to it and that even commercially available bio-diesel
doesn't and that this resulted in much more serious pump wear. I
don't really have any idea how true that is though he did a good
looking job of rebuilding the pump so I guess he isn't a total
wacko... Maybe someone in the group knows more about this and if
there are any useful additives (I'm guessing detergent and lubricant)
that you might want to think about...

-- Tom.

" wrote in
oups.com:

Maybe someone in the group knows more about this and if
there are any useful additives (I'm guessing detergent and lubricant)
that you might want to think about...



Fuel oil, including dino diesel #2 and canola/corn oil IS LUBRICANT!
More oil company disinformation. I know a guy with 160K miles on a
Cummins 6-cylinder diesel Dodge pickup that's only had one tank of diesel
fuel in it since it was new. It's running on the same injection pump.

Of course, my old Mercedes 220D isn't a fair comparison. Its injection
pump has a SEPARATE OIL SUMP filled with SAE 30 motor oil that's changed
out at 60K miles since 1972. When we overhauled the little 4-cyl 2.2L
diesel, we sent the pump in for overhaul. It came back with a note
asking what we wanted them to do to it. After 25 years, it was well
within tolerances in pressure and fuel delivery quantity requiring no
service. We refilled it with fresh lube oil and put it back on the
restored engine block. I'm still driving it another 90K later....(c;

What? You mean if it has its own LUBE OIL it will last 30 years of
everyday driving? Isn't that against the law?!

The injection pump in my 300TD 5-cyl turbodiesel uses dirty crankcase oil
to lube it, which gets changed at 3000 miles. I don't like it, but it's
also still running fine at 250K miles and 24 years.

I told the Mercedes dealer I was gonna buy a new car....as soon as I
figured out how to wear these old ones out! He looked upset....(c;

Larry
--
http://www.spp.gov/
The end of the USA and its Constitution....RIP

On Tue, 19 Jun 2007 20:38:12 +0000, Larry wrote:

" wrote in
roups.com:

Maybe someone in the group knows more about this and if
there are any useful additives (I'm guessing detergent and lubricant)
that you might want to think about...



Fuel oil, including dino diesel #2 and canola/corn oil IS LUBRICANT!
More oil company disinformation. I know a guy with 160K miles on a
Cummins 6-cylinder diesel Dodge pickup that's only had one tank of diesel
fuel in it since it was new. It's running on the same injection pump.

Of course, my old Mercedes 220D isn't a fair comparison. Its injection
pump has a SEPARATE OIL SUMP filled with SAE 30 motor oil that's changed
out at 60K miles since 1972. When we overhauled the little 4-cyl 2.2L
diesel, we sent the pump in for overhaul. It came back with a note
asking what we wanted them to do to it. After 25 years, it was well
within tolerances in pressure and fuel delivery quantity requiring no
service. We refilled it with fresh lube oil and put it back on the
restored engine block. I'm still driving it another 90K later....(c;

What? You mean if it has its own LUBE OIL it will last 30 years of
everyday driving? Isn't that against the law?!

The injection pump in my 300TD 5-cyl turbodiesel uses dirty crankcase oil
to lube it, which gets changed at 3000 miles. I don't like it, but it's
also still running fine at 250K miles and 24 years.

I told the Mercedes dealer I was gonna buy a new car....as soon as I
figured out how to wear these old ones out! He looked upset....(c;

Larry

Separate oil systems for injection pumps were quite common at one
time. The oil actually lubricated the cam shaft that operated the
separate injection pumps. For some reason other manufacturers simply
flooded the pump casing with diesel and it seemed to work about as
well

The pump guys I've talked to reckon that most of the parts they change
in pumps or injectors wear because somebody didn't change the fuel
filters often enough.


Bruce in Bangkok
(brucepaigeatgmaildotcom)

--
Posted via a free Usenet account from http://www.teranews.com

On Tue, 19 Jun 2007 10:10:37 -0700, "
wrote:

...
Deisel engines are designed to run on this stuff but it depends on the
level of filtering that has been done to it. ...

I was jawing with the guy at the counter of the local injector pump
specialists a couple of months ago and he claimed that bio-diesel was
causing pump failures. His assertion was that regular diesel has
lubricants added to it and that even commercially available bio-diesel
doesn't and that this resulted in much more serious pump wear. I
don't really have any idea how true that is though he did a good
looking job of rebuilding the pump so I guess he isn't a total
wacko... Maybe someone in the group knows more about this and if
there are any useful additives (I'm guessing detergent and lubricant)
that you might want to think about...

-- Tom.


The guy at the counter was wrong. Diesel fuel has no added lubricant,
the diesel fuel is in itself provides all the lubrication the
injection system gets.

Vegetable oils are good lubricants as well. During WW I at least one
aircraft engine ran on straight caster oil. It was also used as a
racing lub for years.




Bruce in Bangkok
(brucepaigeatgmaildotcom)

--
Posted via a free Usenet account from http://www.teranews.com