Isuzu 1999 RODEO Workshop Manual page 540

For used timing belt(over 60 minutes from new):
The pointer will be approx. 4 mm(0.16 in) to the
left of the center of the "V" notch when viewed
from the front of the engine.
ENGINE MECHANICAL (X22SE 2.2L)
For new timing belt: The pointer must be at the
center of "V" notch when viewed from the front of
the engine.
3. Tighten fixing bolt (1) of timing belt tensioner to the
specified torque.
Torque: 25 N·m (18 lb ft)
014RW070
4. Install timing belt front cover and tighten two bolts to
the specified torque.
Torque: 6 N·m (4.4 lb ft)
5. Install engine harness cover to front top of engine and
tighten nut to the specified torque.
Torque: 6 N·m (4.4 lb ft)
014RW069
6A–31
014RW062
020RW010