Oil Pump
U241E AUTOMATIC TRANSAXLE: OIL PUMP: INSPECTION
NOTICE:
There are 2 types of stator shaft assembly, so correctly select the drive gear and driven gear in accordance with the presence or absence of the identification mark placed on the stator shaft assembly.
1. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY (for TMC Made)
(a) Push the driven gear to one side of the body. Using a feeler gauge, measure the clearance.
Standard body clearance:
0.10 to 0.17 mm (0.00394 to 0.00669 in.)
Maximum body clearance:
0.17 mm (0.00669 in.)
If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.
(b) Measure the tip clearance between the driven gear teeth and drive gear teeth.
Standard tip clearance:
0.07 to 0.15 mm (0.00276 to 0.00591 in.)
Maximum tip clearance:
0.15 mm (0.00591 in.)
If the tip clearance is greater than the maximum, replace the oil pump body sub-assembly.
(c) 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.)
Standard drive gear thickness:
Standard driven gear thickness
2. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY (for AISIN Made)
(a) Push the driven gear to one side of the body. Using a feeler gauge, measure the clearance.
Standard body clearance:
0.10 to 0.17 mm (0.00394 to 0.00669 in.)
Maximum body clearance:
0.17 mm (0.00669 in.)
If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.
(b) Measure the tip clearance between the driven gear teeth and drive gear teeth.
Standard tip clearance:
0.07 to 0.15 mm (0.00276 to 0.00591 in.)
Maximum tip clearance:
0.15 mm (0.00591 in.)
If the tip clearance is greater than the maximum, replace the oil pump body sub-assembly.
(c) 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.)
Standard drive gear thickness:
Standard driven gear thickness
3. INSPECT FRONT OIL PUMP AND GEAR BODY SUB-ASSEMBLY
(a) Using a caliper gauge, measure the inside diameter of the oil pump body bush.
Standard inside diameter:
38.11 to 38.14 mm (1.5004 to 1.5016 in.)
Maximum inside diameter:
38.19 mm (1.5035 in.)
If the inside diameter is greater than the maximum, replace the oil pump body sub-assembly.
4. INSPECT STATOR SHAFT ASSEMBLY
(a) Using a caliper gauge, measure the inside diameter of the stator shaft bushes.
Standard inside diameter:
20.50 to 21.53 mm (0.8071 to 0.8476 in.)
Maximum inside diameter:
21.57 mm (0.8492 in.)
If the inside diameter is greater than the maximum, replace the stator shaft assembly.