This should of had been the first and last reply.
http://www.nicoclub.com/FSM/240sx/91-94/
There's the factory service manuals. It shows you the correct step by step directions for rebuilding the entire engine.
If you don't have a 1991 to 1994 all the factory service manuals are located here
zerothread/253879
Carefully read though everything, it's easy to forget or over look things, like I almost missed the fact that the piston ring gaps have to be pointed at particular directions, also some rings have an up direction and a down direction.