OIL PUMP DISASSEMBLY

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 oil seal lip.

INSPECT CLEARANCE OF OIL PUMP ASSEMBLY

1. 

   Push the driven gear to one side of the body.

2. Using a feeler gauge, measure the clearance.

   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.

3. 

   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 sub-assembly.

4. 

   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.)

   Table 1. Drive gear thickness: mm (in.)

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

   Table 2. Driven gear thickness: mm (in.)

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