Oil Pump: Inspection

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT OIL PUMP ASSEMBLY
1. Turn the drive gear with 2 screwdrivers and make sure that it rotates smoothly.
  NOTE: Be careful not to damage the lip of the oil seal.
  
  Fig 1: Inspecting Oil Pump Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT CLEARANCE OF OIL PUMP ASSEMBLY

Push the driven gear to one side of the body.
Using a feeler gauge, measure the body clearance between the driven gear and oil pump body.
Standard body clearance: 0.10 to 0.17 mm (0.0039 to 0.0067 in.)

Maximum body clearance: 0.17 mm (0.0067 in.)

If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.

Fig 2: Measuring Body Clearance Between Driven Gear And Oil Pump Body
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Using a feeler gauge, measure the tip clearance between the driven gear teeth and drive gear teeth.
Standard tip clearance: 0.07 to 0.15 mm (0.0028 to 0.0059 in.)

Maximum tip clearance: 0.15 mm (0.0059 in.)

If the tip clearance is greater than the maximum, replace the oil pump body.

Fig 3: Measuring Tip Clearance Between Driven Gear Teeth And Drive Gear Teeth
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a straightedge and feeler gauge, measure the side clearance of both gears.

Standard side clearance: 0.02 to 0.05 mm (0.0008 to 0.0020 in.)

Maximum side clearance: 0.05 mm (0.0020 in.)

Fig 4: Measuring Side Clearance Of Both Gears

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard drive gear thickness

STANDARD DRIVE GEAR THICKNESS

Mark	Thickness
A	11.690 to 11.699 mm (0.4602 to 0.4606 in.)
B	11.700 to 11.709 mm (0.4606 to 0.4610 in.)
C	11.710 to 11.720 mm (0.4610 to 0.4614 in.)
D	11.721 to 11.730 mm (0.4615 to 0.4618 in.)
E	11.731 to 11.740 mm (0.4619 to 0.4622 in.)

Standard driven gear thickness

STANDARD DRIVEN GEAR THICKNESS

Mark	Thickness
A	11.690 to 11.699 mm (0.4602 to 0.4606 in.)
B	11.700 to 11.709 mm (0.4606 to 0.4610 in.)
C	11.710 to 11.720 mm (0.4610 to 0.4614 in.)
D	11.721 to 11.730 mm (0.4615 to 0.4618 in.)
E	11.731 to 11.740 mm (0.4619 to 0.4622 in.)

INSPECT FRONT OIL PUMP AND GEAR BODY SUB-ASSEMBLY
1. Using a caliper gauge, measure the inside diameter of the oil pump body bushing.
  Standard inside diameter: 38.113 to 38.138 mm (1.5005 to 1.5015 in.)
  
  Maximum inside diameter: 38.188 mm (1.5035 in.)
  
  If the inside diameter is greater than the maximum, replace the oil pump body sub-assembly.
  
  Fig 5: Measuring Inside Diameter Of Oil Pump Body Bushing
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT STATOR SHAFT ASSEMBLY
1. Using a caliper gauge, measure the inside diameter of the stator shaft.
  Standard inside diameter: 21.500 to 21.526 mm (0.8465 to 0.8475 in.)
  
  Maximum inside diameter: 21.57 mm (0.8492 in.)
  
  If the inside diameter is greater than the maximum, replace the stator shaft.
  
  Fig 6: Measuring Inside Diameter Of Stator Shaft
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002