MR2 L4-1587cc 1.6L DOHC (4A-GE) (1986)
Oil Pump: Service and Repair
Oil Pump Service/Inspection
Fig. 23 Exploded View Of Oil Pump
3A-C, 4A-C, 4A-GE, 4A-GEC, 4A-GEL, 4A-GELC, 4A-GZE & 4A-LC ENGINES
1.
Remove oil pump cover, drive gear and driven gear, Fig. 135.
2.
Remove oil seal and relief valve subassembly.
3.
Check contact surfaces of oil seal and drive gear for damage and wear.
Fig. 136 Checking oil pump drive gear clearance. 3A-C, 4A-C, 4A-GE, 4A-GEC, 4A-GEL, 4A-GELC, 4A-GZE, 4A-LC, 22R, 22R-E & 22R-TE engines
4.
Measure clearance between drive gear and driven gear crescents, Fig. 136. If clearance is greater than .0138 inch (.35 mm), replace rotor set.