Rio L4-1.5L (2001)
1. Check the front and rear pump bodies for cracking or other damage and for abnormal wear of the moving surface of the rotor.
Cam ring, rotor, vanes, side plate
1. Check the moving surface of the cam ring's vanes for abnormal wear.
2. Check the moving surface of the side plate and the pump bodies for abnormal wear.
3. Check the moving surface of the vane cam ring for abnormal wear.
4. Check the clearance of the rotor and vanes.
Control valve and spring
1. Check the control valve for cracking and other damage, for clogging, and for abnormal wear of the moving part.
2. Check the spring for damage.
