Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 522

5) Install sprockets to intake and exhaust camshafts by aligning
dark blue plate (1) of 2nd timing chain with arrow marks on
intake sprocket and exhaust sprocket respectively.
CAUTION:
Do not turn camshaft more than allowable turning range.
If turned excessively, valve and piston may get damaged.
NOTE:
As an arrow mark is provided on both sides, camshaft
timing sprocket has no specific installation direction.
2. Arrow mark on intake camshaft timing sprocket
3. Arrow mark on exhaust camshaft timing sprocket
6) Install intake and exhaust camshaft timing sprocket bolts.
To install it, fit a spanner to hexagonal part at the center of
camshaft to hold stationary.
Tightening torque
Camshaft timing sprocket bolt
(a) : 80 N·m (8.0 kg-m, 57.5 lb-ft)
1. Intake camshaft timing sprocket
2. Exhaust camshaft timing sprocket
7) Push back plunger (1) into tensioner body (2) and hold it with
stopper (3) at the position by inserting stopper into body.
A : Push
8) Install timing chain tensioner adjuster No.2 (1) with gasket.
Tightening torque
Timing chain tensioner adjuster No.2 nut
(b) : 45 N·m (4.5 kg-m, 33.0 lb-ft)
9) Pull out stopper (2) from timing chain tensioner adjuster
No.2.
ENGINE MECHANICAL (J20 ENGINE) 6A4-33