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Old 03-17-2011, 11:10 PM   #16
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as for cleaning the black only on top of the piston use toothpaste dab libererally on let sit for a bit then polish off in a circular motion
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Old 03-19-2011, 08:11 AM   #17
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I use a water based de-greaser in my heated ultrasonic.... Gets the engine sparkling clean !
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Old 03-22-2011, 09:46 PM   #18
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Fuel works good. I have a liter jug of fuel that I use specifically for engine cleaning (20% nitro, 16% oil) The nitro will free all the gummed up parts and old/built up oil and carbon in the engine and the oil in the fuel will coat all the parts and ensure no rust happens. You can get in there with some q-tips and pipe cleaners to get the really gummed up stuff off. Just dont do any scraping or rubbing to the piston skirt or the inner part of the sleeve.
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Old 03-23-2011, 01:51 AM   #19
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Fuel works good. I have a liter jug of fuel that I use specifically for engine cleaning (20% nitro, 16% oil) The nitro will free all the gummed up parts and old/built up oil and carbon in the engine and the oil in the fuel will coat all the parts and ensure no rust happens. You can get in there with some q-tips and pipe cleaners to get the really gummed up stuff off. Just dont do any scraping or rubbing to the piston skirt or the inner part of the sleeve.
The part in bold is true, if the oil is used on it's own. Otherwise we would not need to remove as much fuel as possible after running, or before storage - because the the nitro is 'Hydroscopic' (correct spelling or word?) meaning it attracts moisture from the air?
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Old 03-23-2011, 04:19 PM   #20
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- because the the nitro is 'Hydroscopic' (correct spelling or word?) meaning it attracts moisture from the air?
Methanol is hygroscopic.
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Old 03-23-2011, 04:56 PM   #21
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Methanol is hygroscopic.
Both, methanol and nitro methane are highly hygroscopic...
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Old 03-23-2011, 07:21 PM   #22
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Both, methanol and nitro methane are highly hygroscopic...
Perhaps you did not understand....
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Old 03-24-2011, 01:15 AM   #23
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Even the most synthetic oils are a bit hygroscopic
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Old 03-25-2011, 04:09 AM   #24
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Thanks guys, I thought it looked a little wrong
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