Suzuki 2000 Grand Vitara SQ625 Service Manual page 499

6A4-80 ENGINE MECHANICAL (J20 ENGINE)
Oil Pump Sprocket
D Check teeth of sprocket for wear or damage.
If any damage or wear is found, replace crankshaft.
1. Crankshaft
2. Oil pump sprocket
Oil Pump Drive Chain
D Check oil pump drive chain for wear or damage.
Rear Oil Seal
Carefully inspect oil seal for wear or damage. If lip portion is worn
or damaged, replace oil seal.
Flywheel
D If ring gear is damaged, cracked or worn, replace flywheel.
D If the surface contacting clutch disc is damaged, or excessively
worn, replace flywheel.
D Check flywheel for face runout with a dial gauge.
If runout exceeds its limit, replace flywheel.
Limit on runout: 0.2 mm (0.0078 in.)