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Hi,
My OS.46FXH engine being rusty. At the time, I had assumed that it went rusty because it was left hanging on the wall without being run for around 3 months, plus I didn't put any after-run oil in it. Well, I'm starting to wonder now. At the time, I replaced the bearings and cleaned up the rear of the crank. No rust left in the engine. I replaced the piston and liner with a custom set I got from an engine builder here in Australia and I have run the engine every weekend since then. On Sunday just gone, I took it out for another run and it just didn't run right. So, I got around to stripping it back down today and to my amazement, there's the rust again! The rear bearing is rusty (and crunchy when you turn it), as is the rear of the crank again How can this be so in such a short time?
Please help.
I didn't find the right solution from the Internet.
References:-
http://mmi.tudelft.nl/~wouter/helipa...ine/rusty.html
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Thanks
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