Putting B13 8valvules

Hello friends I live in Barranquilla Colombia, I have a Nissan Sentra B13 1,300cc Mod95 8valvules and I have the serious problem that no atine mechanic is set up from the car.
Some accommodate the flying with the guide to zero and that of the camshaft with the arrow up and others with the circle above, some say that the distribution shoe starts in 4 others say that it starts in 1.
If someone has a video of set -up of this vehicle I would appreciate it, I would show it to me since I have been in this problem for months.

I have changed distribution module, terminal lid, electronic coil, high cables, spark plugs but I think the problem is in valve calibration and belt accommodation in terms of doubts that I referred to at the beginning.
Thank you

It goes with the crankshaft pulley in zeros or point of the dead and the arrow up. 1-3-4-2 In the sense of engine turn.