Sticky PCV valve? Usualy if you are leaking oil through your valve guides or seals it will stop blowing blue smoke once it burns off the oil, you should do a compresion and leak down test, that sould tell you the condition of your engine.

Dennis

95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.