Cam / Valve Timing for Nissan GA15 engine

[lemmyb]

Hi Guys,

A friend recently acquired a Nissan Sunny with the GA15 engine and needs to change the timing chains and guides, and the water pump. This is an unusual engine here as the model was not formally sold in this country - its a 'grey' import from Japan and so info about this engine is not readily available.
The mechanic is unsure of how to determine or set the timing for the camshafts (valve timing). Is there anyone out there who knows how to do this?

Any help we can get will be greatly appreciated.

Regards
Lemmyb