Miscellaneous Turn the flywheel in the direction of rotation of the engine using the turning tool. Read the mark on the flywheel in the lower window of the fly- wheel housing. Note: Valve transition occurs when the cylinder switches from exhaust stroke to intake stroke. The exhaust valve is closing while the intake valve is opening. 310 343 Openings for taking readings on the flywheel hous- ing. 1 2 3 4 314 908 5 6 7 8 Cylinder location. OPM 300 en-GB 66 © Scania CV AB 2015, Sweden