So all started last week thought the head gasket had gone but after some advise of here found out it was the turbo so got it reconditioned put it back on.starter motor is dodgey but got it started now its ticking over just but won't go above 1000 rpm now I changed the oil and filter and did fuel filter primed it up but still don't rev up my motor is a n reg 2.7 td so any ideas