Well, thanks again to those who were interested in my problem, and sorry for the delay in responding. I comment that I happily ask to fix my optra, but the brands do not Iv of any of the three ways that kindly wrote to me. The brands of the pulleys of the cams were found as Kikemec said, that is, those of admission to 90 degrees and those of exhaust to 270 degrees (in the direction of the clock needles) but the synchronization mark of the Damper did not go down or up, but was about 45 degrees more or less. Once the marks were placed, I turned to the engine with the hand (thanks Kikemec for that data

) until completing a complete cycle and I was scoring the pistons they were is escape and admission, those who would explosion and those who were downloading gases, to a ignition relationship, if I remember I remember 1 - 4 - 3 - 2 (I am not quite sure if the relationship is this). Well, I put everything with the tightening pairs that Pineda87 told me (thanks for the friendly data), I put a new battery and handle it. The strange thing is that it was two days that when the oil light was turned on, but after two days it was taken. I put a semi-manthly oil w15-40. He was also turned on the light of the Hold, that is also removed even if I don't know if the fault is presented again because I think it has nothing to do with what I did. Thanks friends .. !!