OS max fp 25 carbon buildup - RCCanada - Canada Radio Controlled Hobby Forum
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Old 06-26-2011, 03:18 PM   #1
paul borga
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I am: Paul B.
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OS max fp 25 carbon buildup

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Hello there,
I was wondering if there are any other options besides dismantling the engine to clean the carbon buildup on the piston? I've run the engine, it starts well and runs ok but rpm's erratic at times......I've removed the rear cover plate and could see that everything is pretty clean inside, crank turns freely.
I'm hesitant to take it apart, as parts are hard to find if I mess something up.......I expect to run this engine inverted in my elder 20.....see pics...thanks.
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I wish I had these planes when I was 14...even better, I've got them when I'm 40..
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Old 06-26-2011, 07:24 PM   #2
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Re: OS max fp 25 carbon buildup

Pictures are not great resolution. Some new better pics would help. From what I can make out the pistons looks like it has a ton of dings and pits in it.
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