Suzuki Wagon R Manual page 3865

6A4-38 ENGINE MECHANICAL (Z10XEP AND Z12XEP ENGINES)
Oil Pump Inspection
Check clearance between inner/outer rotor and timing chain cover
using straightedge (1) and thickness gauge (2).
If measured clearance is out of specification, replace inner rotor
and/or outer rotor.
Limit of clearance between inner/outer rotor and timing
chain cover:
0.035 to 0.070 mm (0.001 in. to 0.002 in.)
Oil Pump Pressure Regulating Valve Disas-
sembly and Reassembly
Disassembly
1) Remove oil pump pressure regulating valve from timing
chain cover.
1. Pressure regulating valve bolt
2. Gasket
3. Pin
4. Spring
5. Piston