9-3 FWD (9440) L4-2.0L Turbo (B207R) (2009)
5. Remove the spark plug and fit 83 94 173 Air nipple for spark plug hole (B). Connect compressed air and fit the piston and valves under pressure.
Important
The compressed air must not be disconnected when the valve cone is removed. Do not press on the valve stem either as counter pressure
in the cylinder could reduce and the valve could fall down into the cylinder.
6. Press the tool handle down and remove the valve cone (A) with a magnet. Lift out the spring plate (B) and valve spring (C).