STERN SHAFT & ENGINE ALIGNMENT

[Pengze]

Good day!
Regarding the alignment for stern shaft with reduction gearbox and marine engine, what is the standard allowable deviation for axial & radial measurement?
Where can I find the torque for tightening the holding down bolts for the reduction gearbox & marine engine (I mean other than the manufacturer's recommendations)?
So before chocking fast, what should be the alignment value reserved or taken note of ,before tightening the holding down bolts with the proper torque?

[JK]

Out of curiosity, what exam are we helping you study for?

[Pengze]

Hi JK,
Not for exam purpose. Basically & technically for hands -on approach for installation of the above.
Hope somebody who had this experience before can enlighten & kindly provide info for our marine engineers' community.
Any specialist out there? I would like to hear from you. Thanks.