OS Max 50SX ringed - RCCanada - Canada Radio Controlled Hobby Forum
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Old 12-09-2004, 11:23 PM   #1
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I am: Andrew B
Join Date: Apr 2004
Location: Wolfville, NS

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OS Max 50SX ringed

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Can you tell me what you think of this engine. Anyone. Is "ringed" a big issue compared to the ABC?
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Old 12-13-2004, 03:50 PM   #2
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I am: Albert P.
Join Date: Dec 2002
Location: Montreal - Quebec

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It has a lot of power but... (always a but..) it tends to get hot and have problems in the end.
I bought two and was not so happy... had a lot of dead sticks. Then I decided to send one to OS in the USA together with the invoice (two years warranty) and came back like new, no charges. They replaced the piston, cylinder, ring, both ball bearings...
Now it runs like a charm. Same footprint like the .46 FX (Ah, that WAS a great engine) but can run the same plane up forever....
Sooo... I am trying to say... break it in as specified, be careful not to overheat it... keep the invoice...
Once my hands and knees stop shaking I take the planes out of the car.
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