DAF LF45, LF55 Series. Manual — part 194

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Removing and installing

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5

4.5 REMOVAL AND INSTALLATION, VALVE GEAR

Removing the valve gear
1.

Remove the valve cover.

2.

Loosen the lock nuts on the valve stem bolts

and unscrew the bolts until they abut.

3.

Remove the rocker seat attachment bolts.

Note:

Number the rocker seats so that they can be

refitted in their original position.

4.

Remove the rocker seats with the rockers.

5.

Remove the bridges.

Installing the valve gear
1.

Check that the push rods are in the correct

position in the valve tappets and apply a drop

of engine oil to the push rod cavity.

2.

Fit the bridges on the valves.

3.

Fit the push rods in their original position.

4.

Hand-tighten the rocker seats and rockers in

their original position.

5.

Tighten the attachment bolts to the specified

torque. See "Technical data".

6.

Adjust the valve clearance. See "Inspection

and adjustment".

7.

Fit the valve cover.

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4.6 REMOVAL AND INSTALLATION, INTAKE MANIFOLD

Removing the intake manifold
1.

Remove the hose from the intake manifold

coming from the intercooler.

2.

Detach the electric wiring from the glow

elements (1) (if fitted) using the connectors.

3.

Remove the fuel rail.

4.

Remove the inlet air boost pressure sensor/

temperature sensor (1) from the intake

manifold.

5.

Remove the intake manifold (2).

6.

Cover the open inlet duct from the cylinder

head to prevent the ingress of foreign matter.

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Removing and installing

CE ENGINE

ΛΦ45/55 series

2

5

Installing the intake manifold
1.

Thoroughly clean the sealing surfaces of the

intake manifold and the cylinder head. Do

not let any particles fall into the open inlet

duct in the cylinder head.

2.

Apply a bead (2) of sealant to the sealing

surfaces from the cylinder head to the intake

manifold (1). See "Technical data".

3.

Fit the intake manifold immediately and

tighten the attachment bolts to the specified

torque. See "Technical data".

4.

Fit the inlet air boost pressure sensor/

temperature sensor on the intake manifold.

5.

Fit the fuel rail.

6.

Connect the electric wiring to the glow

elements (if fitted) using the connectors (1).

7.

Fit the hose to the intake manifold coming

from the intercooler.

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4.7 REMOVAL AND INSTALLATION, EXHAUST MANIFOLD

Removing the exhaust manifold
1.

Remove the heat shields from the exhaust

manifold.

2.

Remove the turbocharger.

3.

Remove the exhaust manifold (1) and

gaskets.

Installing the exhaust manifold
1.

Check the surface of the exhaust manifold

for smoothness with a steel ruler (1) and

feeler gauge (2). Compare the reading with

the values listed in 'Technical data'.

2.

Fit new gaskets to the exhaust manifold and

install the manifold. Tighten the attachment

bolts, from the middle outwards alternately.

For the specified tightening torque, see

'Technical data'.

3.

Fit the turbocharger.

4.

Install the heat shields to the exhaust

manifold and tighten the attachment bolts to

the specified torque. See 'Technical data'.

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