Valve adjustment on iveco 6.7

Ok I am in need of some help here, I’m not sure what I’m doing wrong. I am trying to set the valves on this iveco 6.7 engine and not coming out right. Ok so I barred the engine over and set timing pin and checked all marks on gears and all in place, set it at TDC and began adjustment but when I rotate 360degrees to adjust the rest, I am not able to do so because exhaust 2 and intake 3 are not loose. If I turn it to loosen them up then it’s all out of wack. I know I’m screwing up somewhere...Help please

Depends on age of engine. Later ones you have to follow the firing order because the camshaft is made different because of emissions.

Hey Kith, sorry to getti g back to you so late. Thank you for the info, I was able to set the valves and had fuelpump timed, so enginw is running well.