Just costs more to get enough cans of John Deere to make up the minimum fraction. Ah, well, I've never known a diesel to get sniffy about a bit of extra di-ethyl. That generous spread of upper cyl lube suggests that we should base our ether estimate on worst case conditions. Yet we both have had the "new brew" problem. It appears to me that the volume of liquid, unaffected by dissolved gases, is as we seem to agree, about 100% +/- from 0.1% to 10% upper cyl lube. I will, of course, cede your cite of the 0.1%-10% (Wow! What a spread!) of upper cylinder lube. As ffkiwi mentioned, and which goes against all simple reasoning, home-brew diesel fuel seems to need a day or more to "settle down." If I could have persuaded the FIST (Field Surgical Team) at Loloho base to have parted with some anaesthetic ether we would have been quids in-and probably the first powered model aircraft ever flown in Bougainville.Īpologies, but I read the MSDS link you provided, and I DID see it include the ounce (mass, not volume) I referred to. We did our best-but by the time the fuel was mixed we would have been down to about 15% ether-and all we could get was a few pops out of the engine. Too late I found out that the engine start was a tropical grade-and only contained 25% ether. Courtesy David Owen in Oz (who sometimes posts on this forum) we acquired an MP Jet Classic. His idea of glowfuel included turpentine! I persuaded him that a diesel might have a better chance-and as we had literally crates and crates of engine start in the workshop, kerosene by the drum and various grades of oil in the workshop. As a rule I would make up fuel on a friday if I intended using that batch on a sunday.įortunately, as a research student and then scientist most of my working life I've almost always had access to ether, so never had to resort to John Deere-though I did do a peacekeeping deployment to Bougainville with the NZ army-and my team mechanic tried to fly a c/L model with a Cox on the helo landing pad on home mixed glow fuel. It seems to need a day or so to settle down after mixing for consistency-so I can quite believe Lou's experience with John Deere-and the dissolved propellant gassing off and upsetting settings. About 40 years of operating diesels-almost exclusively on home mixed fuel-has taught me that it is never advisable to use ultrafresh made fuel.
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