Corolla Wagon L4-107.5 1762cc 1.8L DOHC (7A-FE) (1993)
2. CHECK TIP CLEARANCE OF DRIVEN GEAR
Measure between the driven gear teeth and the crescent shaped part of the pump body.
Standard tip clearance: 0.004 - 0.248 mm (0.0002 - 0.0098 in.)
Maximum tip clearance: 0.3 mm (0.012 in.)
If the tip clearance is greater than the maximum, replace the oil pump body subassembly.
3. CHECK SIDE CLEARANCE OF BOTH GEARS
Using a steel straightedge and a feeler gauge, measure the side clearance of both gears.
Standard side clearance: 0.02 - 0.05 mm (0.0008 - 0.0020 in.)
Maximum side clearance: 0.1 mm (0.004 in.)
There are different thicknesses for drive and driven gears.
Drive and driven gear thickness: 9.475 mm (0.3730 in.)
If the thickest gear can not make the side clearance within standard specification, replace the oil pump body subassembly.
4. CHECK OIL PUMP BODY BUSHING
Using a dial indicator, measure the inside diameter of the oil pump body bushing.
Maximum inside diameter: 38.18 mm (1.5031 in.)
If the inside diameter is greater than the maximum, replace the oil pump body subassembly.
5. CHECK STATOR SHAFT BUSHINGS
Using a dial indicator, measure the inside diameter of the stator shaft bushing.