Hi To All, I Am Having Problems With My X Reg Tddi Focus Estate

[dizzeerussell]

Evening all, i have had serious issues with of oil generlly all over the engine, turbo pipe etc etc, a mechanis has put me a new rocker cover gasket in and for three/four days seemed to sort ,but ive noticed that i have had a loss in umpph and upon inspection ive noticed oil at the right rocker bolt, is it a common problem that the bolt need replacing after x amount of years service?? the last lack of power was the turbo hose coming off as im assuming the jubilee wasnt correctly tightened but not im afraid of a hose leak or a slipping clutch lol i'm greatful of your advice in advance rusty