1983 bluebird l20b questions

Hi everyone,
A friend of mine has a Nissan Bluebird L20B, 1983 model, Australian model. I'm just wondering where we could find specific engine information. We need to pull the head apart and put it back together. Specifically I need to know the recommended tensions for the cylinder head bolts and I need some information on the timing gear and chain. A diagram of the timing assembly would be nice.

Anyone know if there's anywhere online that I can get this stuff?

thanks very much

matt

hi i dont know if there is any where online but i have got a standard manual and a work shop manual for nissan l20 motor, and i have plenty of parts