2. Remove the inspection window plug from the clutch dome...
...and turn the crankshaft clockwise with a key, achieving a position where the mark on the flywheel is in the middle of the inspection window opening.
3. To fix the engine in the TDC position, the camshaft should be locked (not his cogwheel) and the fuel injection pump gear in the installation position using special tools. Despite the potential possibility of independently manufacturing equivalent devices, the required measurement accuracy requires preference to be given to branded blockers. The authors of this Manual recommend the currently available Sykes Pickavant blockers.
[Original text is located on: www.SKODABOOK.ru]
4. Insert the working edge of the blocker into engagement with the groove on the end of the camshaft.
5. Without removing the lock, slightly turn the crankshaft clockwise (how they did it before) so that the blocker rests against the surface of the cylinder head. From the opposite end of the blocker, using a blade-type feeler gauge, measure the gap between the end of the device and the head.
6. Turn the camshaft slightly in the opposite direction and remove the feeler gauge. Now it is necessary to align the blocker by inserting two blades on both sides, the thickness of each of which should be equal to half the gap measured in the previous step. After completing the centering of the camshaft, the installation of the valve timing can be considered complete.
7. By inserting a special locking pin into the installation hole of the fuel injection pump gear and into the groove of the hub, fix the pump in the installation position.
8. Now the engine will be brought to the TDC position of the end of the compression stroke of the piston of the first cylinder.