Corolla Sport Coupe L4-1587cc 1.6L DOHC (4A-F) (1988)
If the body clearance is greater than the maximum, replace the oil pump body subassembly.
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: 0.11 - 0.14 mm (0.0043 - 0.0055 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 three different thicknesses for drive and driven gears.
Drive and driven gear thickness:
Mark Thickness
A
9.440 - 9.456 mm (0.3717 - 0.3723 in.)
B
9.456 - 9.474 mm (0.3723 - 0.3730 in.)
C
9.474 - 9.490 mm (0.3730 - 0.3736 in.)
If the thickest gear can not make the side clearance within standard specification, replace the oil pump body subassembly.