What was found
CABIN SMOKE: ABOUT THREE MINUTES AFTER DEPARTURE FROM HPN, DURING INITIAL CLIMB OUT, AN ACRID AND OILY SMELL IN THE CABIN DEVELOPED AND WE NOTICED HEAVY SMOKE IN THE COCKPIT. WE DECLARED AN EMERGENCY AND DECIDED TO DIVERT TO TEB AS IT WAS NOW CLOSER. WE PERFORMED THE SMOKE REMOVAL CHECKLIST WHICH HAD US ISOLATE THE LEFT ENGINE BLEED AND THAT SEEMED TO CLEAR UP THE SMOKE PROBLEM. WE PERFORMED A NORMAL LANDING AT TEB.