What are these braided tubes for?

69ST

Well-Known Member
Supplemental crankcase venting setup, with catch tank and return line for oil mist/vapor that condenses back into liquid.
 

motodevo

Active Member
Needed on higher performance engines. The larger displacement and higher revs can pressurize the crankcases to the point that it will blow oil out the breather and even blow out seals and gaskets.
 
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