this video was sent to me by a tech that works for a nissan dealer in mexico.
engine was 7k km, nissan said problem was lifters, so they order tech to replace them.
sympthom was this noise when engine COLD, and after warm up goes away.
of course lifters were replaced but noise still there, so engine was replaced.


replacing lifters
Name:  BTKVW98.jpg
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also here you have image from hr16de manual, showing right clearences at main bearings, i was told by the dealer my engine is now well inside good clearences... we will see...
(see red cicle at bottom)
http://i.imgur.com/wxAqlDV.jpg