Isuzu KB P190. Manual - part 509

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. 
 

6A-24 ENGINE MECHANICAL (C24SE) 

 

 

Toothed Belt, Replace 
(Engine with toothed belt tension 
roller) 

 

 

 

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. 

 

 

Adjust 

Turn the crankshaft in the engine rotational direction to 
mark(2). 
Align markings on toothed belt and on toothed belt rear cover.
Simultaneously, notch (1) on camshaft gear must align with the 
mark on toothed belt rear cover. 
Turn the crankshaft slowly and smoothly. 
 

ENGINE MECHANICAL (C24SE) 6A-25 

 

 

 

 
 
 
 

 
 

Adjust 

Loosen the fastening bolt of the toothed belt tension roller and 
turn the adjustment eccentric in the direction of arrow 
(clockwise) until pointer (1) comes to the left stop. 
Remove the toothed belt. 
 

Installation 

1. Install a new toothed belt while keeping tension side taut. 

 

Adjust 

Toothed belt tension - see operation " Toothed Belt Tension". 
 

 

 

  2.  Install the toothed belt to the cover. 

  3.  Install the crankshaft pulley while counterholding on the 

fastening bolt of toothed belt drive gear. 

  4.  Install the fan shroud. 

  5.  Install the fan belt. 

  6.  Install the V-belt for A/C. 

  7.  Install the V-belt for power steering. 

  8.  Install the fan. 

  9.  Install the belts to the bracket for alternator.