2004 ISUZU TF SERIES engine

6A-16 ENGINE MECHANICAL (C24SE)
CRANKCASE VENTILATION SYSTEM

The Engine Ventilation System passes crankcase vapours, via the Engine Vent Pipe, to the Cam Support Cover,
where separation of oil and exhaust gases occur. The oil drains into the Cylinder Head, via the Camshaft Support.
The gases pass through the Primary and Secondary Vent Hoses to the intake system, and are consumed during
the combustion process.

ENGINE MECHANICAL (C24SE) 6A-17
ENGINE ASSEMBLY & LOOSE PARTS


Loose Parts
1 Alternator
2 P/S Pivot Spacer
3 P/S Adjusting Screw
4 P/S Adjusting Plate
5 P/S Adjusting Nut
6 Alternator & Fan Drive Belt
7 A/C Compressor Drive Belt
8 P/S Pump Drive Belt
9 Tensioner Bolt
10 Tensioner Pulley
11 Pulley Dust Shield Cover
12 Pulley Spacer
13 A/C Compressor Bracket
14 Pulley Bolt
15 Fan Pulley
16 Cooling Fan
Engine Assembly
20 C24SE

6A-18 ENGINE MECHANICAL (C24SE)
OPERATIONS ON ENGINE AGGREGATES
Engine Damping Blocks (Engine Without
Transmission)
Removal
1. Remove bonnet.
2. Remove radiator.
3. Remove air inlet hose.
4. Remove power steering pump drive belt and power
steering pump from engine.


5. Remove all cable connections, hoses and lines from
engine.
6. Remove accelerator cable from inlet pipe.


7. Remove exhaust pipe from manifold.



8. Remove lower nine bolts and transmission from engine
block.
9. Remove clutch slave cylinder and allow to hang free.
10. Remove starter from engine block.

11. Remove upper bolts of left and right engine mounting
from damping blocks.
12. Raise engine slightly.
13. Remove lower bolts of left and right damping blocks.
14. Remove damping blocks.

ENGINE MECHANICAL (C24SE) 6A-19













Attach engine to cable, support transmission with car jack and
remove upper transmission fastening bolt.

Press off engine from transmission and lift out of engine
compartment.

Installation
Lower engine into engine compartment and insert guide
bushings on cylinder block into transmission.

Tighten (Torque)
Transmission to cylinder block (M10) -45 N

m (4.6 kgf

m)
Transmission to cylinder block (M12) -60 N
m (6.1 kgf
m)







Installation
1. Install engine to vehicle and transmission.
2. Install clutch slave cylinder.

Tighten (Torque)
Transmission to engine block bolts - 76 N
m (7.6 kgf
m)


RTW46ASH000401





3. Install left engine damping block to sidemember.
4. Install left and right engine damping blocks to engine
brackets.

Tighten (Torque)
Engine damper block to sidememebr - 50 N

m (5.1 kgf

m)
Engine damper block to engine bracket - 85 N

m (8.6 kgf

m)


5. Install exhaust pipe to manifold.

6A-20 ENGINE MECHANICAL (C24SE)





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 (C24SE) 6A-21

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(II).
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-22 ENGINE MECHANICAL (C24SE)


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 (C24SE) 6A-23
Toothed Belt Tension, Adjust
(Engines with toothed belt tension
roller)
Removal
Refer to 6A-21. 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-21. Toothed Belt and Timing check and installation
steps.