Dear All, I have just purchased an XJ TDVi off a family member, it has a very good service history with mostly Dealership stamps, its got 108k miles and has had the timing belt done and lots of other bits'n'pieces but what I've just been made aware of is the possibility of the engine crank bearing bolt shearing and destroying the engine !!!! (or something of that nature that happens to this 2.7 V6 )...... are there preventative measures or fixes to ensure this won't happen or is it a bit of a lottery whether this will happen and I will just have to wait and see !!!!????? Any constructive help would be very much appreciated .