val adjustment on E7 Mack engine

doing a valve adjustment on a e7 series mack ai 400 engine.
extra notes:
torque the jam nut to 45 ft lb, not the allen screw. for the valve.
Steps:
1. Rotate engine clockwise facing the front engine to timing mark or to tdc of piston 1 or 6
2 Loosen all jam nuts and adjust the rods for either piston 1 or 6 depending on if the cylinder next to it has the intake valve being able to move. So you would adjust the 1st piston valves if the 2 piston intake valve is able to freely move.
3. Starting from piston 1 you would adjust both valves then move to piston 2 and adjust the intake then
piston 3 adjust the exhaust
piston 4 adjust the intake
piston 5 adjust the exhaust
4. rotate the engine clockwise 360 degrees till you hit the timing mark and start at piston 6. You would essentially do the same thing like piston 1 but backwards i