hello… it’s about the x20xev engine… the valves have been made new sanded-in seal…and everything else at tightnesses too.. timing belts etc also everything… now is following problem… when the engine is cold… he jumps super at running super calm and doesn’t make any mucking…. when he was running then he stutters everything but clean and squirrels and smells of oil … wash that… or what can it be… the engine has run according to tacho 201 tkm… and i ch wanted to build up the car and do my vectra away… since he has already 230 tkm on the clock… and now by the age the problems become no less… I hope I have not had or paid for the coal and the work for nothing… 🙁