Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 430

Oil Pump Chain
Check oil pump chain for wear or damage.
INSTALLATION
1) Install oil pump drive sprocket (2) as shown in figure.
1. Crankshaft
3. Crankcase
2) Install oil pump chain (1) by aligning match marks (3) on oil
pump chain and oil pump sprocket (2).
3) Install oil pump chain guide (1) and hand-tighten oil pump
chain guide bolts.
4) To take up slack of oil pump chain, insert 1.2 – 1.5 mm
(0.048 – 0.059 in.) thickness gauge (2) between chain guide
and chain (3) and push oil pump chain guide in arrow direc-
tion with a force of 0.3 to 0.5 N (30 – 50 g, 0.07 – 0.11 lb)
then tighten oil pump chain guide bolts to specified torque.
Tightening torque
Oil pump chain guide bolt
(c) : 11 N·m (1.1 kg-m, 8.0 lb-ft)
ENGINE MECHANICAL (H25 ENGINE) 6A2-55