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Thread: 2017 OS Speed R2103 3.5cc Nitro On Road Engine
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Old 09-06-2022 | 03:46 AM
  #100  
magnushedqvist
Tech Apprentice
 
Joined: Sep 2010
Posts: 92
From: sweden
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Originally Posted by Roelof
I guess scratches on the piston.
Yeep that's right. A huge crack in the piston and the sleeve actually broke and ripped it
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