What was found
AT TAKEOFF POWER JUST AFTER V1 HAD A STRONG OILY ODOR IN CABIN. THE ODOR APPEARED TO DISSIPATE AT REDUCED POWER. ALL ENG INDICATIONS WERE NORMAL, APU WAS OFF. GND RAN AC AT TAKEOFF POWER & ISOLATED ENGS. APU & THEIR BLEED SELECTIONS. TROUBLE SHOT TO BURNT OIL SMELL FROM LT ENG. FURTHER TROUBLESHOOTING SHOWED EVIDENCE OF OIL LEAKING INTERNALLY WHEN LT ENG BOV REMOVED. R & R THE LT ENG IAW MM 71-00-03. COMPLIED WITH LT ENG POST RUNS & LEAK CHECKS IAW MM 71-00-04 & 71-00-00 TABLE 501 OF MM. OPERATIONS & LEAK CHECKED GOOD.