OIL PUMP > DISASSEMBLY

for Preparation Click here



1. REMOVE FRONT OIL PUMP BODY O-RING


    D027950

  1. Remove the O-ring from the oil pump assembly.



2. FIX OIL PUMP ASSEMBLY


    D027951E02

  1. Place the oil pump body on the torque converter clutch.



3. REMOVE CLUTCH DRUM OIL SEAL RING


    D027952E01

  1. Remove the 3 oil seal rings.



4. REMOVE STATOR SHAFT ASSEMBLY


    D027953

  1. Remove the 14 bolts and the stator shaft from the oil pump body.



5. REMOVE FRONT OIL PUMP BODY O-RING


    D027963

  1. Remove the O-ring from the oil pump body.

  1. Remove the oil pump body from the torque converter clutch.



6. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY


    D027954

  1. Using a dial indicator, measure the inside diameter of the oil pump body bushing.

    Maximum inside diameter:
    38.138 mm (1.5015 in.)

    If the inside diameter is greater than the maximum inside diameter, replace the oil pump body.



7. INSPECT STATOR SHAFT ASSEMBLY


    D027955

  1. Using a dial indicator, measure the inside diameter of the stator shaft bushing.

    Maximum inside diameter:
    Front side:
    21.527 mm (0.8475 in.)
    Rear side:
    32.03 mm (1.261 in.)

    If the inside diameter is greater than the maximum inside diameter, replace the stator shaft.



8. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY


    D027956

  1. Push the driven gear to one side of the body.

  1. Using a feeler gauge, measure the clearance.

    Standard body clearance:
    0.10 to 0.17 mm (0.0039 to 0.0067 in.)

    If the body clearance is greater than the standard clearance, check the drive gear, the driven gear and the pump body.



    D027957

  1. Using a feeler gauge, measure the clearance between the driven gear teeth and the drive gear teeth.

    Standard tip clearance:
    0.070 to 0.150 mm (0.0028 to 0.0059 in.)

    If the tip clearance is greater than the standard clearance, check the drive gear, the driven gear and the pump body.



    D001286

  1. Using a steel straight edge and a feeler gauge, measure the side clearance of both gears.

    Standard side clearance:
    0.03 to 0.05 mm (0.0012 to 0.002 in.)

  1. There are 7 different thicknesses for the drive and driven gears.

    Drive and driven gears thickness:
    Mark
    		Thickness
    0
    		10.736 to 10.742 mm (0.42268 to 0.42291 in.)
    1
    		10.743 to 10.749 mm (0.42296 to 0.42319 in.)
    2
    		10.750 to 10.756 mm (0.42323 to 0.42346 in.)
    3
    		10.757 to 10.763 mm (0.42350 to 0.42374 in.)
    4
    		10.764 to 10.770 mm (0.42378 to 0.42401 in.)
    5
    		10.771 to 10.777 mm (0.42405 to 0.42429 in.)
    6
    		10.778 to 10.784 mm (0.42433 to 0.42457 in.)

    If the side clearance is greater than the standard thickness, check the drive gear, the driven gear and the pump body.



9. REMOVE FRONT OIL PUMP DRIVE GEAR


    D027958

  1. Remove the front oil pump drive gear.



10. REMOVE FRONT OIL PUMP DRIVEN GEAR


    D027959

  1. Remove the front oil pump driven gear.



11. REMOVE FRONT OIL PUMP OIL SEAL


    D027960

  1. Using a screwdriver, remove the oil seal.

    NOTICE:
    Do not damage the bushing and the oil pump body.