The vegetable oil instead of diesel - sure go for it!

[leandro89]

but in the vanes of the variable geometry there is exhaust gas or air coming from the filter?

[rts]

The air that comes from the filter and, consequently, with the gas coming from the egr and the sfiatto of the engine and then with residues of oil, amica chips

[leandro89]

the cooking oil contains lots of glycerin, which, after combustion is deposited together with the soot, creating a sort of tar rubbery blocks the movement of the vanes. If the oil to be refined and separated from the glycerin, it would be ideal to burn in any diesel engine and, for this, as it is called biodiesel.

and then closing the egr it solves the problem of variable geometry right?

[spiki_x]

Closing the egr greatly improves the combustion, and then solve the problem in part. There still remains the problem of cold start and smoke; hence at full throttle.
I must also add that the quantity of combustion residues also depends on the quality of oil.
I have had various sources from where predevo the oil and the difference is noted and the like. From the tavern of my village, I took oil of poor quality because it changed every week, and while filtering it through well, you immediately felt the decline in power and increase in the smoke; hence. It was burned bad, very dark color.
Pero from the bakery in the city, I received an oil practically new, given that, because of the quality of the products there were only two rounds of crostole and then changed. And smelled of sweets from the exhaust that was a wonder.

[spiki_x]

I confirm also that the engines are best for this sport are the JTD 100 and 105hp. And it really was the best oil to naphtha. The second choice would be the TDI PD of WV. The system to the injector pump reaches the high pressures (up to 2000bar) that digest everything.
The system is the ultimate for having 100% reliability and ,as already mentioned, the supplied heat exchanger to heat the oil before it enters in the appropriate filter, or you can find filters or attacks for cooling/heating of the fuel. That I saw it on the Passat 4motion.
To completely avoid the inconvenience, I mounted a second tank of a dozen litres for diesel fuel. So I solved the problem of starting in the winters more cold. The car started to oil and when heated to operating temperature, with a switch azionavo the electromagnetic valves connecting the main tank full of oil.
I have used these valves: http://www.jaksa.si/3-way-direct-act...id-valves.html
The tank I made in stainless steel and mounted under the hood, as in golf, you could dance around the engine. Currently I'm going to make a tank fiber glass custom because adheres perfectly to the place of the spare wheel.

[dvdtuning]

then you say that on a common rail jtd 115hp injectors should be to be blessed, as well as the turbine?

[leandro89]

sar? that I'm wrong, but I think the turbine is not affected, why? if as you say the catalytic converter will also sooner or later it becomes clogged permanently

[spiki_x]

No, The jtd 115 should also go well, because it's almost the same engine. The important is always to ensure good combustion and mixing the oil gradually and see how it behaves. Start with 20-30% of the oil, and do you just have an idea. Furthermore, you can always adapt the program of the control unit, by closing the egr, raising the pressure of the turbine , lowering the misciela (smoke; hence), and raising discreetly the pair.
The catalyst ceases to perform its function immediately after seeing a couple of litres of oil. The residues of combustion , provided with thin deposits on the surface, assessment of the action of the rare earth metals.
The biggest disappointment I encountered was the Vivaro 115 DCI of my father, who metendo 10 litres of oil on a full tank was not more, and you would expect for the road as a lumacha. Sara because of some sensor after the catalytic converter..... boooo. Only after 10 supplies a full and cleaned up and back to normal. So... modern cars do not go.

[spiki_x]

A thought on biodiesel.

Por being a fuel superiorissima quality? for our diesel has problems all his own. And the success that the 5% is mixed in the fuel oil to the european directive, he did break a couple of engines. The official explanation was that they are created of micro-organisms in the fuel and have it ruined. But from the studies I have done are almost sure that you have the wrong recipe. In the process of formation of the biodiesel is used as a catalyst in chemical KOH, which must be removed at the end of the reaction. And here that hangs usually. If the catalyst is not washed from the biodiesel and susceptible to chemical reactions with the water that condenses from the air and form with biodiesel, a kind of soap which of course does not burn and goes to lock the motor. So from this point of view, I feel more safe with the vegetable oil raw, which, with the biodiesel.
Of course, that has even more economy with the oil. Biodiesel costs the same as diesel fuel, or and expensive to produce it.

[mikyrace82]

but in the vanes of the variable geometry there is exhaust gas or air coming from the filter?

The air that comes from the filter and, consequently, with the gas coming from the egr and the sfiatto of the engine and then with residues of oil, amica chips

and then closing the egr it solves the problem of variable geometry right?

Closing the egr greatly improves the combustion, and then solve the problem in part. There still remains the problem of cold start and smoke; hence at full throttle.
I must also add that the quantity of combustion residues also depends on the quality of oil.
I have had various sources from where predevo the oil and the difference is noted and the like. From the tavern of my village, I took oil of poor quality because it changed every week, and while filtering it through well, you immediately felt the decline in power and increase in the smoke; hence. It was burned bad, very dark color.
Pero from the bakery in the city, I received an oil practically new, given that, because of the quality of the products there were only two rounds of crostole and then changed. And smelled of sweets from the exhaust that was a wonder.

but what you're saying? are the exhaust gas flowing into the geometry of the turbo!!!!what does the egr? do not write just to write...