Suzuki Wagon R Manual page 3866

ENGINE MECHANICAL (Z10XEP AND Z12XEP ENGINES) 6A4-39
Reassembly
Install oil pump pressure regulating valve.
Tightening torque
Oil pump pressure regulating valve bolt
(a): 50 N·m (5.0 kg-m, 36.5 lb-ft)
NOTE:
Be sure to apply engine oil to piston (5), spring (4) and
pin (3).