Join Date: Nov 2001
Location: North Central Illinois
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Re: running a draft tube instead of a closed crankcase
If you have any room, raise the tip of the valve cover tube up a couple inches . Should solve the problem. Otherwise, with an open vent that motor will probably crap all it's oil seals without a vacuum on the crankcase . You could use an evacuation can , vacuum supplied to one side from the pcv and the other tube to the valve cover .