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Old 11-27-2018, 09:25 PM   #15 (permalink)
cRiPpLe_rOoStEr
It's all about Diesel
 
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I wouldn't expect it to become an issue. Remember the Citroën 2CV? It generated vacuum inside the crankcase while the engine was running. OK, I know it's a whole different animal, but some vacuum might not harm efficiency at all. Maybe decreasing resistence against the turns of the crankshaft would even become somewhat beneficial. Not sure on that though, but seems worth trying.
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