Isuzu KB P190. Manual - part 510

6A-26 ENGINE MECHANICAL (C24SE) 

OPERATIONS ON INSTALLED ENGINE 

SEALING OPERATIONS 

 

 

Gasket, Exhaust Manifold, Cylinder Head 

Removal 

  1.  Remove front exhaust pipe from exhaust manifold. 

  2.  Remove exhaust manifold heat shield. 

  3.  Remove exhaust manifold retaining nut. 

  4.  Remove exhaust manifold from cylinder head. 

 

 

 

 

Clean 

Sealing surfaces. 

 

Tighten (Torque) 

Exhaust manifold to cylinder head - 22 N

⋅m (2.2 kgf⋅m) 

Front exhaust pipe to exhaust manifold - 25 N

⋅m (2.6 kgf⋅m) 

 

 

 

Gasket, Intake Manifold, Cylinder Head 

Removal 

  1.  Remove air intake hose. 

  2.  Remove drive belt for alternator. 

  3.  Remove bolt clamping bracket for alternator from intake 

manifold. 

  4.  Remove intake manifold from cylinder head. 

 

 

 

 

 
 
 

 

Clean 

Sealing surfaces 

 

Tighten (Torque) 

Intake manifold to cylinder head - 22 N

⋅m (2.2 kgf⋅m) 

Clamping bracket for alternator to intake manifold - 25 N

⋅m (2.5 

kgf

⋅m) 

 

Installation 

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

  2.  Install air intake hose. 

 

ENGINE MECHANICAL (C24SE) 6A-27 

 

 

 

Seal Ring, Camshaft Housing, Timing Side 

Removal 

  1.  Remove front toothed belt cover toothed belt from 

camshaft timing gear according to the corresponding 
operation. 

  2.  Remove camshaft housing cover and camshaft timing 

gear. 

  3.  Remove sealing ring by making hole in middle of ring, 

turning in self-tapping screw and edging out. 

 

 

Installation 

  1.  Install sealing ring by using 5-8840-0451-0 with camshaft 

sprocket bolt and washer. 

  2.  Install coat seal lips of shaft seal ring slightly. 

 

 

 

 

 

Seal Ring, Thermostat Housing, Cylinder Head 

Removal 

  1.  Open radiator drain tap and collect coolant. 

  2.  Remove toothed belt rear cover and toothed belt 

according to the corresponding operation. 

  3.  Remove camshaft housing cover. 

  4.  Remove camshaft timing gear by counterholding 

camshaft with a flat spanner. 

  5.  Remove cable from temperature sensor. 

 

 

 
 
 
 
 

 

  6.  Remove upper inner hex bolts of rear toothed belt cover.

  7.  Turn rear toothed belt cover to one side. 

  8.  Remove thermostat housing. 

  9.  Remove sealing ring from cylinder head. 

 

Clean 

Sealing surfaces in cylinder head and thermostat housing. 

 

 

Installation 

  1.  Install sealing ring in recess of cylinder head. 

 

6A-28 ENGINE MECHANICAL (C24SE) 

 

 

 

 

  2.  Install cable to temperature sensor. 

  3.  Install upper bolts of rear toothed belt rear cover. 

  4.  Install camshaft timing gear then check timing according 

to the corresponding operation. 

  5.  Install camshaft housing cover. 

  6.  Install toothed belt and front cover. 

  7.  Fill up and bleed cooling system according to the 

corresponding operation. 

 

 

Tighten (Torque) 

Thermostat housing to cylinder head - 15 N

⋅m/1.5 kgf⋅m. 

 

 

 

 

Seal Ring - Front Camshaft Housing, Replace 

Removal 

Mark running direction of toothed belt. 

Remove toothed belt-see operation “Toothed Belt, Replace”. 

 

Camshaft housing cover, camshaft pulley-counterhold on hex 

of camshaft. 

 

 

Removal 

Screw self-tapping screw into seal ring. 

 

Edge out seal ring. 

 

Installation 

Lightly coat sealing lip of seal ring with protective grease. 

 

Install seal ring with 5-8840-0451-0 into camshaft housing-use 

screw and washer of camshaft pulley. 

 

ENGINE MECHANICAL (C24SE) 6A-29 

 

 

 

 
 
 
 
 
 
 

Installation 

Camshaft pulley-counterhold at hex head of camshaft, 

camshaft housing cover. 

 

Toothed belt-see operation “Toothed Belt, Replace”. 

Note operating erection of toothed belt. 

 

Tighten (Torque) 

Camshaft pulley to cammshaft-45 N

⋅m (3.7 kgf⋅m) 

 

 

 

 

Tighten (Torque) 

Camshaft housing cover to cover to housing-8 N

⋅m (0.8 kgf⋅m)