did my timing chain/ lifters,
rear main seal well when i first try to start it back fire
boom so i said my cam sensor 180off i was right , try to start ,crank right on time no leaks but now it's smoking at idle
never smoke before never!! check vacumm leaks no leaks at all my question is can the back fire in the engine damage my turbo seal, intake side no oil trace in turbo-haven't check exhuast side yet, what's going on 



