Disassembly and Reassembly

Disassembly / Assembly
1. The following procedures show replacement of the O-rings. If a problem is found in other parts, replace the oil pump assembly.





2. Disassemble in the order shown in the figure with referring to the Disassembly Note.
3. Inspect all parts and replace as necessary.
4. Assemble in the reverse order of disassembly with referring to the Assembly Note.

Assembly note
Rotor





1. Install the rotor to the shaft with the rotor's identification mark facing upward.

Cam ring





1. Install the cam ring so that its identification mark is facing downward.

Vane





1. Install the vanes (10 pieces) to the rotor, with the R part of the vanes facing outward.

Inspection

Notice: Replace the pump assembly if necessary.

Pump body





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.