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  #111  
Old 2 Days Ago
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you talking about the oiler holes?
does oil migrate through the bearings, sure
while the flywheel compartment sees most of the generated changes, it still all equalizes out to average c/c pressure.
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  #112  
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The splash holes in the 04 gearcase wall are plugged with the piston squirters.
Apparently feed oil is piped from the top feed galley in the gearcase to the squirters.
There is a tiny hole left on the gearcase side of the splash holes.
So the squirters (or squirter assembly), placed into position must pass a small amount of excess CC pressure thru the wall on top of receiving feed oil.
Else CC pressure can only leave the crankcase through the scavenge pump or head drain to the breathers.
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