Frage zu Saito FG Ölschmierung und anderen

wäre ich sehr überrascht wenn saito einen methanoler hernimmt dann ein benzin label drauf klebt und nun behauptet von nun an braucht er nur noch 3 statt 20% öl.

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http://www.justengines.unseen.org/acatalog/copy_of_E.html schrieb:

My glow engines is designed to run on 20% oil, how can I run it on as little as 5% oil when I convert it to petrol?

Petrol engines run at a higher temperature than a glow engine so you can expect and slightly greater expansion of mating bearing surfaces, conrods for example, and this reduces the friction coefficient to a small extent. Timing is another factor and this plays a very big part in the heat of the engine and the load on bearing surfaces. A modern petrol engine (CDI ignition) is timed automatically according to the load and speed. The sensor "reads" the RPM of the magnetic exciter and the information gained is used by the CDI program to vary the timing. A free running engine can run on the maximum advance but a loaded engine requires a retarded ignition. A glow engine (methanol fuel) is often (most times) running very well loaded(and over advanced) and there is no provision for timing compensation. As such, the extra oil is a big factor in carrying away excess heat. The final factor is the fuel. Methanol is a very dry fuel no lubrication properties at all so the engine depends entirely on the oil content for lubrication. Petrol is an oily fuel and provides considerable lubrication on its own. Combined with a small
amount of oil (of the correct ratio as specified) the ?petroil? mix is an excellent fuel and lubrication in the one package. Look at your motor car (if it is in reasonable condition and not an oil burner). The oil is splashed onto the cylinder walls and scraped off with the oil scraper ring. The amount left is almost zero but the petrol is then adequate to carry out the rest of
the lubrication job. As a simple test pour a few drops of methanol into a cup of water it disappears. Do the same with petrol and it sits on top of the water as an oily film. In engine technology regarding fuels, petrol has a positive lubrication factor methanol is almost negative.

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