X-90 (4WD) L4-1591cc 1.6L SOHC MFI (1998)
INSPECTION
Pump Body, Cover, Side Plate and Shaft
Check sliding surfaces of each part for wear and damage. if any defect is found, replace pump assembly.
Cam Ring
Check vane sliding surface of cam ring for wear and damage.
If any defect is found, replace pump assembly.
Rotor and Vane
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Check sliding surfaces of rotor and vane for wear and damage.
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Check clearance between rotor and vane.
Clearance: Standard 0.01 mm (0.0004 inch)
Limit 0.06 mm (0.0023 inch)
Replace pump assembly if any defect is found in above checks.
Relief Valve (Flow Control Valve) and Its Spring