Some time back I posted re: replacing the oil separator and substitution of metal tubing to replace the plastic stuff. I have successfully used 3/8 inch soft copper tubing (from Lowes) as a substitute. Used the rubbed 45 degree elbow from the oil box and the soft rubber insulation from the plastic tubing to cover it. The elbow is a tight fit to the copper, but works well and also used another similar elbow on the inlet to the turbo input. Used just my hands for bending with no kinks. You do have to be careful as these are gental bends.
Also tried using small brass tubing for some of the smaller plastic, but was not as successful with bending. Used vacuum hose for the curves.
Cost: less than $5.00
dick
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