Sir Dieseldude,

Update on my problem, sir my engine is a pajero 4m40 and may lumalabas na usok sa breather ng eninge which is connected sa air filter (when I removed it). When I opened the dip stick oil. May lumalabas din na usok pero minsan wala naman. I have no problem with power. Mahatak naman sha and Hindi hard starting pag umaga. Last february pina-"dukot" ko sha. I changed my piston rings and pinaover sized ko.

Does my engine need an overhaul or kaya mawala ung black smoke if i will calibrate my injection pump?