DAF CF65, CF75, CF85 Series . Manual — part 250

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4-3

Removal and installation

XE ENGINE

CF65/75/85 series

2

8

4.3 REMOVAL AND INSTALLATION, VALVE COVER

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When the engine or parts thereof are

opened, dirt may penetrate. This

may cause serious damage to the

engine. Therefore, the engine should

be cleaned thoroughly before any

parts are opened.

Removing the valve cover
1.

Clean the area around the valve cover.

2.

Remove the attachment bolts from the valve

cover.

3.

Remove the valve cover and the valve cover

gasket.

Installing the valve cover
1.

Clean the sealing surface of the valve sleeve

and the valve cover.

2.

Fit the valve cover using a new valve cover

gasket.

3.

Fit the attachment bolts of the valve cover

and tighten them to the specified torque. See

the main group "Technical data".

XE ENGINE

4-4

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200324

Removal and installation

8

CF65/75/85 series

2

4.4 REMOVAL AND INSTALLATION, VALVE GEAR

Removing the valve gear
1.

Remove the valve covers.

2.

Remove the DEB or the lubricating oil strip

(depending on version).

Note:

Number the rocker seats (1) and the bridges

(2-3-4) to allow reinstallation in the same

position.

3.

Remove the rocker seats (1).

4.

Remove the bridges (2-3-4).

Installing the valve gear

Note:

In engines with a DEB, the bridges of the inlet and

exhaust valves are different.

In engines without a DEB, the bridges of the inlet

and exhaust valves are the same.

1.

Fit the bridges (2-3-4) on the valves.

2.

Set the bridges (2-3-4). See "Inspection and

adjustment".

3.

Hand-tighten the rocker seats (1).

Note:

Depending on the engine position, some

rocker seats will have to be positioned

against the pressure of the valve springs.

The rocker seat will resist this spring

pressure and cannot therefore be positioned

correctly. By cranking the crankshaft

1

/

3

turn

each time using the special tool (DAF No.

1310477), the rocker seats can be tightened

in the injection sequence 1-5-3-6-2-4.

4.

Tighten the attachment bolts to the specified

torque. See "Technical data".

M200559

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M200560

3

2

4

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200324

4-5

Removal and installation

XE ENGINE

CF65/75/85 series

2

8

5.

Fit the DEB or the lubricating oil strip

(depending on version). Fit the lubricating oil

strip in such a way that the mark "cyl. 1/4" is

located on cylinder 1 or cylinder 4. For the

tightening torques of the attachment bolts,

see "Technical data".

6.

Set the valve clearance and, if applicable,

the DEB clearance. See "Inspection and

adjustment".

7.

Fit the valve covers.

M200548

XE ENGINE

4-6

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200324

Removal and installation

8

CF65/75/85 series

2

4.5 REMOVAL AND INSTALLATION, VALVE SLEEVE

Removing the valve sleeve
1.

Remove the injection pipes in sets.

2.

Remove the valve covers.

3.

If necessary, disconnect the electrical

connection of the DEB.

4.

If necessary, remove the cable harness from

the DEB or the plug from the valve sleeve.

5.

If fitted, remove the DEB.

6.

Remove the injectors.

7.

Remove the valve gear.

8.

Remove the push rods.

9.

Remove the valve sleeve and gasket.

Installing the valve sleeve
1.

Fit the valve sleeve with a new gasket and

tighten the attachment bolts to the specified

torque and in the correct sequence. See

"Technical data".

2.

Fit the push rods

3.

Fit the injectors.

4.

Fit the valve gear.

5.

If necessary, fit the DEB.

6.

If necessary, fit the DEB cable harness or the

plug in the valve sleeve.

7.

If fitted, connect the electrical connections of

the DEB.

8.

Fit the valve covers.

9.

Fit the injector pipes in sets.

1

5

2

6

4

12

10

13

9

15

7

11

8

14

3

M200942