A
Anonymous
Guest
The other point is you may have misunderstood. The engine has VVT I think (variable valve timing) and if you have to drop off the chain you have to lock the other end of the camshafts (the back end) or they spring open (they are pushed against the spring by centrifugal force to get the VVT) if you did not lock them they are a real PIG to get back to the right place sometimes.