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Richard Sohn wrote:
Georges,
the 12A pump is way to small for the 13B. According to the spec. the 12A pump is pumping 2.0 - 2.5 cc in 6 minutes on its two lines with the engine running at 2000RPM.
The 13B NT does 4.5-5.5 cc on two lines in 5 minutes engine running at 2000RPM. The Turbo setting does 5.2 - 6.6 under the same condition.
I'll grant you that, Richard. In fact, I'll go one step further and say, "That's the plan". A slight amount of injected oil for the case when I get stupid and forget to add the two stroke to the gas. Just a backup really. I would run all 4 oil injectors, but that will complicate the intake manifold construction.
One more thing, if you use the OMP. You must retain the injector valves sitting on the rotor housing and the intake manifold. Their vacuum line is hooked up to the intake plenum. These valves do the oil injection, the OMP only supplies the oil!
I hope this answers the question.
Richard Sohn
N-2071U
I need help on this point. I'm keeping the injectors in the housing. They're fed oil through a banjo fitting and have a nipple on top that supplies air. I assumed the air would blow through the injector to disperse the oil. But where does the air come from and how is it pressurized?
What is the general consensus on what to use for oil lines. I remember Atkins not recommending the the stock plastic lines, as they get brittle and crack. After I felt how hard they had gotten on this engine I just snipped them off with a pair of dykes. No way I'm flying with oil pumping through those brittle lines just above a hot exhaust. But now I have to figure out what to replace them with.
--
This is by far the hardest lesson about freedom. It goes against
instinct, and morality, to just sit back and watch people make
mistakes. We want to help them, which means control them and their
decisions, but in doing so we actually hurt them (and ourselves)."
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