Note.
- Necessary special devices, control and measuring instruments, as well as auxiliary means:
- Adapter (adapter) for the "T10170" clock type indicator.
- Camshaft position lock "T10171" or "T10171A".
- Hourly deviation indicator.
1. Remove the cylinder head cover and air filter.
2. Remove the camshaft covers.
3. Remove the ignition coil of the 1st cylinder.
4. Screw the adapter for the dial indicator "T10170" into the spark plug thread until it stops.
5. Install the deviation indicator (A) with the extension T10170/1- until it stops, clamp it with the clamping nut (arrow), as shown in the figure below.
6. Turn the crankshaft in the direction of engine shaft rotation until the piston of the 1st cylinder is at TDC. Mark the position on the deviation indicator using a small arrow.

7. The holes (arrows) in the camshafts must be in the position shown in the figure. If necessary, turn the crankshaft one revolution (360°).
Note.
- If the crankshaft turns more than 0.01 mm past TDC, then the crankshaft should be turned back by approximately 45. Then turn it in the direction of engine shaft rotation to the TDC position of the 1st cylinder.
- Permissible deviation from TDC of piston of the 1st cylinder: ±0.01 mm.

(Text copied from this resource: SKODABOOK.ru)
8. Install the camshaft locking tool "T10171" or "T10171A" into the camshaft holes until it stops. The locking mandrels (arrows 1) must enter the holes (arrows 2) as shown in the figure below. The inscription "TOP" (arrow 3) must be legible from above.
- If it is not possible to install the camshaft locking tool "T10171" or "T10171A" into the camshaft holes until it stops, this means that the valve timing is not adjusted and must be readjusted.
- The valve timing is adjusted if it is possible to install the camshaft locking tool "T10171" or "T10171A" into the camshaft holes until it stops.
9. Further installation is carried out in the reverse order of removal.
- Replace the camshaft cover sealing rings and lubricate them with oil before installation.

