Isuzu KB P190. Manual - part 512

6A-34 ENGINE MECHANICAL (C24SE) 

OPERATIONS ON CYLINDER HEAD AND CAMSHAFT 

HOUSING 

 

 

Camshaft 

 

 

 

 

Removal 

  1.  Remove cylinder head according to the corresponding 

operation. 

  2.  Remove camshaft housing from cylinder head and lay 

housing on base provided 

  3.  Remove rear sealing gasket and plate camshaft housing 

with taking care not to damage housing. 

  4.  Remove thrust plate. 

 

 

 
 
 

 

 5.  Remove camshaft. 

  6.  Remove front sealing gasket and plate from camshaft 

housing with taking care not to damage housing. 

 

Inspection 

All parts. 

 

 

 

 

 
 

 

 

Installation 

 1.  Install camshaft. 

  2.  Coat sliding surfaces with molybdenum disulphate paste.

 

Tighten (Torque) 

Thrust plate for camshaft housing - 8 N

⋅m (0.8 kgf⋅m) 

 

ENGINE MECHANICAL (C24SE) 6A-35 

 

 

Camshaft Housing, Removal and 
Installation 

 

 

Cylinder Head 

Important! 

Remove cylinder head only from cold engine (room 

temperature). 
 

 

 

Removal 

  1.  Remove ground cable from battery. 

  2.  Open radiator drain tap and collect coolant. 

  3.  Remove air intake hose. 

  4.  Remove all cable connections, hoses and lines to the 

cylinder head. 

  5.  Remove accelerator cable on the throttle valve. 

  6.  Remove V-belt for alternator. 

 

 

 

 

 

  7.  Remove front toothed belt cover according to the 

corresponding operation. 

  8.  Bring piston of 1st cylinder to TDC and mark the position.

  9.  Remove camshaft housing cover. 

 10.  Remove camshaft timing gear after releasing tension on 

toothed belt. 

 

 

 

 11.  Remove upper bolts of rear toothed belt cover. 

 12.  Remove exhaust pipe from exhaust manifold. 

 13.  Remove cylinder head after loosening bolts from outside 

inwards (at first quarter turn then half turn) in a spiral 
pattern. 

 14.  Remove camshaft housing from cylinder head. 

 15.  Remove rocker arm, pressure parts and hydraulic valve 

lifter adjuster. 

 

6A-36 ENGINE MECHANICAL (C24SE) 

  

 

 

 

 
 
 
 

 

 
 
 
 
 
 
 
 

 

 

Clean 

All sealing surfaces, drill holes in cylinder head bolts. 
 
Check cylinder block and cylinder head for plane surface 

according to the corresponding operations. 
 

Installation 

  1.  Install cylinder head sealing with marking "OBEN/TOP" 

facing upwards and to right side of engine. 

  2.  Install cylinder head on cylinder block. 

  3.  Install hydraulic valve lash adjuster, pressure parts and 

rocker arm - molybdenum disulphate paste. 

  4.  Install camshaft housing-Sealing Compound TB-1207C 

or equivalent. 

 

Important! 

Use new cylinder head bolts. 

Screw in bolts until they rest on cover. 

 

 

 

 

Torque - Angle Method 

Cylinder head to cylinder block - 25 N

⋅m (2.5 kgf⋅m) 

Further turn angle 90

°+90°+ 90°. 

Tighten cylinder head bolts from inside outwards. In four 

stages in a spiral pattern. 
 

 

 

 

 
 

 

 
 
 

  5.  Install rear toothed belt cover onto camshaft housing. 

  6.  Install toothed belt and apply tension according to the 

corresponding operation. 

 

Tighten (Torque) 

Camshaft timing gear to camshaft - 45 N

⋅m (4.6 kgf⋅m) 

 
 

 

 

 

  7.  Install camshaft housing cover and front toothed belt 

cover. 

  8.  Install cable connections, all hoses and lines onto 

cylinder head. 

  9.  Adjust accelerator cable for free of play. 

 10.  Install V-belt according to the corresponding operation. 

 11.  Install air intake hose. 

 12.  Install front exhaust pipe. 

 13.  Install ground cable onto battery.  

 14.  Fill up cooling system and bleed according to the 

corresponding operation. 

ENGINE MECHANICAL (C24SE) 6A-37 

 

 

 

 

Hydraulic Valve Lifters, Replace 

Removal 

  1.  Remove the spark plug connectors and spark plugs. 

  2.  Remove the camshaft housing cover. 

 

 

 

Removal 

  3.  Turn the crankshaft at fastening bolt of toothed belt drive 

gear in the direction of the engine rotation until the cam 
of hydraulic valve lifter being replaced stands vertically. 

 

 

 

Removal 

  4.  Apply 5-8840-0457-0 to the camshaft housing, valve 

spring cap and tension valve spring. 

 

 

 

Removal 

  5.  Remove the cam follower from camshaft housing. 

   

Note thrust pieces. 

  6.  Remove hydraulic valve lifter from camshaft housing. 

 

 

 

 

Camshaft Housing, Replace 

Removal 

Cylinder head-see operation “Cylinder Head. Remove and 

Install”.