Suzuki 2000 Grand Vitara SQ625 Service Manual page 453

6A4-34 ENGINE MECHANICAL (J20 ENGINE)
Crankshaft Timing Sprocket
_ Check teeth of sprocket for wear or damage.
Idler Sprocket
_ Check teeth and bush of sprocket for wear or damage.
1. Bush
1st Timing Chain
_ Check timing chain for wear or damage.
Timing Chain Tensioner Adjuster No.1
_ Check that latch and tooth surface are free from damage and
latch functions properly.
1. Latch
2. Tooth surface