2. Remove the crankcase ventilation valve from the cylinder head cover.
3. Reconnect the crankcase ventilation valve to the vent tube.
4. Start the engine and let it idle.
5. Put your finger on the crankcase ventilation valve hole and check the vacuum on the intake pipe (pic. 6.4a).
Pic. 6.4a. Checking the operation of the crankcase ventilation valve
Attention! During the test, the valve piston must move back and forth.
6. If vacuum is not felt on the finger, clean or replace the crankcase ventilation valve and tube.
7. Insert a thin rod from the valve installation side into the cylinder head cover and, moving the rod back and forth, check if the piston moves (pic. 6.4b).
Pic. 6.46. Insert a thin rod from the side of the valve into the cylinder head cover and, moving the rod back and forth, check if the piston moves
8. If the piston does not move, clean or replace the crankcase ventilation valve.