Isuzu engine C22NE / 22LE / 20LE. Manual - part 13

6A-34 ENGINE MECHANICAL (C22NE, 22LE, 20LE)

COMPONENT PARTS

CYLINDER HEAD

(A)

1.

Camshaft Housing Cover

2.

Camshaft Housing

3.

Camshaft

4.

Cylinder Head

(A)

Valve Drive

ENGINE MECHANICAL (C22NE, 22LE, 20LE) 6A-35

HYDRAULIC VALVE LIFTER

1.

Hydraulic Valve Lifter

1.

Oil reservoir

2.

Piston with ball head (moving)

3.

Pressure Cylinder (fixed)

4.

Check ball

5.

Pressure chamber

6.

Oil feed

6A-36 ENGINE MECHANICAL (C22NE, 22LE, 20LE)

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 (C22NE, 22LE, 20LE) 6A-37

Camshaft Housing, Removal and
Installation

See operation Camshaft

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.