Sienna AWD V6-3.3L (3MZ-FE) (2004)
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15. REMOVE VANE PUMP SHAFT SNAP RING
a. Using a screwdriver, remove the vane pump shaft snap ring from the w/ pulley shaft sub-assy.
16. REMOVE VANE PUMP ROTOR
a. Remove the 10 vane pump plates from the vane pump rotor.
b. Remove the vane pump rotor.
17. REMOVE W/PULLEY SHAFT SUB-ASSY
18. REMOVE PUMP BRACKET FRONT
a. Remove the bolt and the pump bracket front from the vane pump housing front.
19. REMOVE VANE PUMP HOUSING OIL SEAL
a. Using a screwdriver, remove the vane pump housing oil seal from the vane pump housing front.
NOTICE: Be careful not to damage the bushing of the vane pump housing front.
20. INSPECT VANE PUMP SHAFT AND BUSH IN HOUSING FRONT
a. Using a micrometer and a caliper gauge, measure the oil clearance.
Standard clearance: 0.027 to 0.054 mm (0.00106 to 0.00213 inch)
Maximum clearance: 0.07 mm (0.0028 inch)
If it is more than the maximum, replace the vane pump assy.
b. Check if there is any damage or wear on the bushing of vane pump housing front and the w/ pulley shaft sub-assy.
If necessary, replace the vane pump assy.
