Cleaning BMW N47 Air Intake Manifold Intake Valve Channel Walnut Blast Part2 (2022 Version)

i did the cleaning work for air intake manifold about 3 years ago, this time i prepared littel more equipment and invest more time for the cleaning work and used walnut blasting the intake valve channel. now it is good for next 60000 -100000 km.

[@nanjiang1953]

真厉害

[@threestones9782]

小意思

[@MarcelHVAC]

小意思@@threestones9782

[@igortanyarascovschi1225]

if I rotate the crankshaft pulley to clean the valves, does it matter the direction ? and once i finish the job and the valve of the cylinder 1 is not in the exact position to the ignitión, this could be a problem or the digital electronic adjust it automatically?
could you please reply

[@threestones9782]

the direction is important