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Thread: Purpose of an exhaust port that isn't flush with the piston at BDC?
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Old 06-25-2018 | 04:05 AM
  #34  
RCTecher12
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Originally Posted by Roelof
If the crankcase is blocking some flow you can always enlargen it w/o touching the sleeve.

I think this is a left over from very old plane engines where the sleeve is placed in a 45 degree position
OS and their clones rotated the liner. No one else did this to my knowledge.
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