Lined the cambelt up, did some manual turns and all was good in terms of alignment; proceeded to bolt everything back up. once the pulley was on, i did some manual turns and heard air coming out of the spark plug sockets (no sparks installed), this did not happen before when i was doing manual turns (no spark plugs + old belt)
I hand tightened the spark plugs in and could no longer turn the engine easily, I managed to use some force and move it a little and a loud woosh came out the spark plug sockets, putting the 16mm deep socket in i noticed the spark plug loosened up and the engine was slightly easier to turn.
Is this normal or did i screw something up?