Diesel Fuel - How To and More - John Deere Ether

[flypast111]

Typical Home-made Diesel Fuel:
35% kerosene / 35% ether (or amyl nitrate/pentyl nitrite/isopropyl nitrite) / 25% 2-cycle oil (castor/synthetic or mix) / 5% cetane booster
1 gal. (128 oz.) diesel fuel = 45 oz. kerosene / 45 oz. ether / 32 oz. oil / 6 oz. cetane booster
1 qt. (32 oz.) diesel fuel = 11 oz. kerosene / 11 oz. ether / 8 oz. oil / 2 oz. cetane booster

Ether (diethyl ether) = formula (C2H5)2O, thin, or inviscid, clear aromatic liquid hydrocarbon {see JOHN DEERE ether based starting fluid product #RE556468; CAUTION: diethyl ether boiling point =>~94F/~34.5C => open container handling care required => store-in/transport via cool dry places ... like a ice cold cooler or refrigerator}

I use the above to test and operate 2-cycle diesel model engines. Use of commercial "pump" diesel fuel is not generally recommended for model diesel engines.

Cheers, Flypast111 :thumbup:

 

[Mechanicboy]

35% kerosene / 35% ether (or amyl nitrate/pentyl nitrite/isopropyl nitrite) / 25% 2-cycle oil (castor/synthetic or mix) / 5% cetane booster

This is not right placed. Also amyl nitrate/pentyl nitrite/isopropyl nitrite and will be placed in same place as cetane booster as ignition improver.

Ignition improver

The ignition improver, like Ethyl's DII(3) (octyl nitrate), causes the ether to ignite at a lower compression ratio, and also smoothes the combustion process. Without it, a diesel has a cackly, rattly sound, and compression has to be set higher, which puts more load on the moving parts.
With it, a diesel runs smoothly and purrs like a tiger. A typical formulation is 2% for engines up to about .19 and 1.5% for larger engines.

5% is a bit too much as ignition improver.

"Use of commercial "pump" diesel fuel is not generally recommended for model diesel engines." ---> The model diesel engine will run on commercial diesel fuel if you replace kerosene with commercial diesel fuel. Also the ether is a ignitor to ignite the commercial diesel fuel in the model diesel engine since ether has very high cetane number up to 80. Instead kerosene the engne will run well at barbeque igniter fluid, jet fuel, lamp oil, commercial diesel fuel, White spirit (UK) or mineral spirits (US, Canada), also known as mineral turpentine (AU/NZ), turpentine substitute, petroleum spirits, solvent naphtha (petroleum), Varsol, Stoddard solvent, or, generically, "paint thinner", is a petroleum-derived clear liquid used as a common organic solvent in painting and decorating.

2-cycle oil --> Never use 2 stroke engine oil (too thin oil), use castor oil or motoroil SAE 40 or 50 or higher SAE number if available. I prefer Castor oil.

 

[PopAlexandra]

Wow. That much kerosene? I would have never thought it was more than 15%.

 

[flypast111]

Model Engine Builders - In some places, kerosene is also referred to as naphtha, or paraffin, as described below;
Kerosene (1-K / paraffin) = thin, or inviscid, clear liquid hydrocarbon, density of 0.78–0.81 g/cm3,
fraction boils between 150 °C to 275 °C and molecules with 6-16 carbon atoms
Naphtha = clear to reddish-brown volatile aromatic liquid hydrocarbon (very similar to gasoline/petrol)
Light naphtha – fraction boils between 30 °C to 90 °C and molecules with 5–6 carbon atoms
Heavy naphtha – fraction boils between 90 °C to 200 °C and molecules with 6–12 carbon atoms
The point is to make certain to use well known and demonstrated high quality chemical components to formulate model engine diesel fuel due to the potential effects of unintended elements, or residue, that degrade the mechanical components and materials. Also, note that John Deere has, for some time now, produced an ether based diesel starting system; the ether is provided in the #RE556468 commerical product.

Cheers, Flypast111

 

[Mechanicboy]

Self ignition temperature -->

Coml. Diesel Oil 240 to 260°C
Paraffin about 250°C
High cetane Gas Oil 220 to 240°C

There are little to compare in self ignition temperature and the model diesel engine will run well at difference fuels + ether.

The only readily available substances with relatively low S.I.T.'s are the paraffin hydrocarbons—which fortunately also possess very high Calorific Values. Ruling out individual pure hydrocarbons like pentane, hexane, heptane, etc., on the grounds of expense, this virtually narrows down our choice of base fuel to PARAFFIN OIL, COMMERCIAL DIESEL OIL and special HIGH CETANE GAS OIL FRACTIONS, if available. There is little to choose between paraffin and diesel oil, the latter having its higher viscosity and greater "oiliness" to recommend it.

And the ether in fuel is not strictly neccesary to keep engine running. See at my long stroke engine is running at fuel without ether this movie. My own made long stroke diesel engine are running at fuelmix of 66% kerosene, 33% modificed olive oil and 2% Methyl Ethylene Ketone Peroxide.

[ame="https://www.youtube.com/watch?v=wmH6WUMUEJg"]https://www.youtube.com/watch?v=wmH6WUMUEJg[/ame]

And the other fuel without ether : 2 % IPN (Methyl ethylene ketone peroxide) in fuel mix 1 part kerosene, 1 part gasoline, 1 part 15W-50 motoroil.

[ame="https://www.youtube.com/watch?v=5Q0RBgmPRbE"]https://www.youtube.com/watch?v=5Q0RBgmPRbE[/ame]