Isuzu engine C22NE / 22LE / 20LE. Manual - part 10

6A-22 ENGINE MECHANICAL (C22NE, 22LE, 20LE)

5.

Install exhaust pipe to manifold.

6.

Install power steering pump and V-belt.

Adjust

Adjust power steering pump V-belt tension according to the

corresponding operation.

Installation

7.

Install radiator according to the corresponding operation.

8.

Install air inlet hose.

9.

Install all electrical cable connections, hoses and lines to
engine.

10.

Install accelerator cable from inlet pipe.

11.

Install bonnet.

Inspection

1.

Check engine oil level.

2.

Fill up cooling system and bleed according to the
corresponding operation.

ENGINE MECHANICAL (C22NE, 22LE, 20LE) 6A-23

Toothed Belt and Timing Check

Removal

1.

Remove the belts on the bracket for alternator.

2.

Remove the fan.

3.

Remove the V-belt for power steering.

4.

Remove the V-belt for A/C.

5.

Remove the fan belt.

6.

Remove the fan shroud.

7.

Remove the crankshaft pulley while counterholding on
the fastening bolt of toothed belt drive gear.

8.

Remove the toothed belt from cover.

Inspection

1.

Turn the crankshaft in the engine rotational direction
mark(2) so that the notch (1) on the camshaft gear aligns
with the mark on toothed belt rear cover.

2.

Check the timing belt for worn, cracks or oil adhesion.

3.

Check that the cast on the water pump aligns with the
counterpart on cylinder block (arrowed).

4.

The tension of a toothed belt is correctly adjusted when
the pointer and the center of the notch are aligned(I).
The tension of a run-in toothed belt (regardless of
mileage covered) is correctly adjusted when the pointer is
positioned approx. 4mm (0.16 in.) to the left of the center
of the notch(2).
Check the condition of the run-in toothed belt for
suitability for reuse.  Only toothed belts of the toothed belt
tension rollers must be replaced and the source of oil
contamination must be eliminated.

6A-24 ENGINE MECHANICAL (C22NE, 22LE, 20LE)

Installation

1.

Install the toothed belt to the cover.

2.

Install the crankshaft pulley while counterholding on the
fastening bolt of toothed belt drive gear.

3.

Install the fan shroud.

Tighten(Torque)

Crankshaft pulley bolts - 20 N.m (2.1 kgf.m)

4.

Install the fan belt

5.

Install the V-belt for A/C.

6.

Install the V-belt for power steering.

7.

Install the fan.

8.

Install the belts on the bracket for alternator.

ENGINE MECHANICAL (C22NE, 22LE, 20LE) 6A-25

Toothed Belt Tension, Adjust
(Engines with toothed belt tension
roller)

Removal

Refer to 6A-23. Toothed Belt and Timing check and removal
steps.

Adjust

1.

Loosen the fastening bolt of the toothed belt tension
roller.

2.

Turn the toothed belt tension roller at adjustment
eccentric(1) in the direction of arrow (counterclockwise),
until pointer (2) comes to the right stop.

3.

If necessary tighten the fastening bolt of toothed belt
tension roller.

4.

Rotate the crankshaft twice (720

°

) in the engine rotational

direction until marks (2) and (1) align again.

5.

Turn the eccentric in the direction of arrow (clockwise)
until pointer (1) and notch (2) are positioned to suit age of
toothed belt.

6.

Rotate the crankshaft twice (720

°

) in the engine rotational

direction again and correct adjustment if necessary.

Installation

Refer to 6A-24 Toothed Belt and Timing check and installation
steps.