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Engine basics => Engine set up tips => Topic started by: Dick Pacini on January 04, 2010, 08:10:24 PM
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This has probably come up before, but I can't find it. Why did OS drop the blue anodizing? Was it an overheating issue? I think they look good in blue.
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Actually it was blue paint, not anodizing.
My guess is that more people preferred the "natural" over the blue, when they had a choice.
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I removed the coating so I could get consistent engine runs.
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Doc, How did ya' remove the coating?
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<I removed the coating so I could get consistent engine runs>
I'm not sure one has anything to do with the other. I have the blue job and it has been consistent ever since I installed the Randy Smith needle. A lot of race cars use dark colors on their engines to help disapate the heat.........Please explain.
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I think it was sarcasm...
...and I believe it is powdercoating, not paint that's on those engines.
They were probably trying to save a buck. The Chinese have a labor cost advantage over the Japanese.
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I was using it on a profile plane. First flight usually started out having to adjust the needle. Each flight after it was adjust the nedle until about the third or fourth flight then it would stabilize. I crock potted it to get rid of the coating. Now it is fuel up, start engine and fly. Unless big temp change in weather it is now consistent. This is the LA .40 that used to be blue. Maybe it was just an oddball engine. My LA .46 which is still blue seems to be consistant in the P-39 which is partially cowled. Both engines are box stock internally.
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I dunno why they quit putting the blue (?) on the LA series engines. But this is why they put it on in the first place...history. Orwicks were green, McCoys were red & black, and they looked kewl and went very fast. I guess that one day Mr. Ogawa found a can of blue paint laying around the shop, and made a model engine so's he could paint it blue? y1 Steve