NTB98107 "A revised service procedure for the engine front cover/timing chain has been adopted for the GA16DE. It is no longer recommended to remove the cylinder head when removing the timing chain/front cover(s). Utilize the steps in this bulletin when servicing the front cover, timing chain, guides or tensioner(s). See this bulletin for further details."
Anybody had a look at this bulletin or have any idea of what steps they are now recommending.