DAF CF65, CF75, CF85 Series . Manual - part 251

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4.6 REMOVAL AND INSTALLATION, INLET MANIFOLD

Removing the inlet manifold
1.

Disconnect the electrical wiring on the inlet 

manifold.

2.

Remove the fuel leak-off pipe between the 

fuel filter and inlet manifold.

3.

Remove the coolant filter, if applicable.

4.

Remove the entire fuel filter from the inlet 

manifold.

5.

Disconnect the injector pipes.

6.

Remove the attachment bolts from the inlet 

manifold and remove it.

Installing the inlet manifold
1.

Carefully clean the sealing surfaces of the 

inlet manifold and the cylinder head.

2.

Fit new gaskets to the inlet manifold and fit 

the manifold. Tighten the attachment bolts to 

the specified torque. See "Technical data".

3.

Fit the fuel leak-off pipe between the fuel 

filter and the inlet manifold.

4.

Fit the injector pipes.

5.

Fit the complete fuel filter.

6.

Fit the coolant filter.

7.

Connect the electrical wiring.

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4.7 REMOVAL AND INSTALLATION, EXHAUST MANIFOLD

Removing the exhaust manifold
1.

Take the exhaust brake cylinder (8) off the 

butterfly valve (4).

2.

Remove the clamping strip from the exhaust 

brake (4).

3.

Remove the air inlet hose (2).

4.

Remove the inlet air pipe (1) between the 

turbocharger and the intercooler.

5.

Remove the compressor pipe.

6.

Remove the heat shields from the exhaust 

manifold.

7.

Remove the oil supply and oil discharge 

pipes from the turbocharger.

8.

Remove the attachment bolts from the 

exhaust manifold and remove the manifold 

along with the turbocharger.

Installing the exhaust manifold
1.

Fit new gaskets to the exhaust manifold and 

install the manifold. Tighten the attachment 

bolts with the spacer sleeves to the specified 

torque. See "Technical data".

2.

Install the heat shields of the exhaust 

manifold. Tighten the attachment bolts to the 

specified torque. See "Technical data".

3.

Fit the heat shields for the oil discharge pipe.

4.

Spray clean engine oil into the oil supply of 

the turbocharger and fit the oil supply pipe.

5.

Fit the compressor pipe.

6.

Fit the inlet air pipe (1) between the 

turbocharger and the intercooler.

7.

Connect the air inlet hose (2).

8.

Fasten the clamping strip of the exhaust 

brake (4).

9.

Fit the exhaust brake cylinder (8) onto the 

butterfly valve (4).

10. Start the engine and check all connections 

for leaks.

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4.8 REMOVAL AND INSTALLATION, CYLINDER HEADS

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When the engine or parts thereof are 

opened, dirt may enter. This may 

cause serious damage to the engine. 

Therefore, the engine should be 

cleaned thoroughly before any parts 

are opened.

Removing the cylinder heads
1.

Disconnect any wiring around the engine 

which is relevant for the removal of the 

cylinder heads.

2.

Disconnect the inlet pipe from the 

turbocharger to the air cooler.

3.

Disconnect the compressor pipe from the air 

intake pipe to the compressor.

4.

Slacken the tensioner of the air-conditioning 

compressor, if fitted.

5.

Remove the attachment bolts of the air-

conditioning compressor mounting bracket, if 

fitted.

6.

Remove the heat shields from the exhaust 

manifold.

7.

Remove the attachment bolts from the 

exhaust manifold and remove the manifold 

and the turbocharger from the cylinder 

heads.

8.

Remove the coolant filter, if fitted.

9.

Disconnect the fuel leak-off pipe between the 

fuel filter and the fuel leak-off pipe on the inlet 

manifold.

10. Disconnect the fuel filter assembly from the 

coolant pipe.

11. Disconnect both sets of injector pipes.

12. Remove the coolant pipe together with the 

thermostat housing.

13. Remove the inlet manifold attachment bolts 

and remove the entire manifold from the 

cylinder heads.

14. Remove the valve covers.

15. If fitted, remove the DEB.

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16. To remove the injectors and the clamping 

pieces, only use the special tools 

(DAF no. 1329412) and (DAF no. 0694928).

17. Remove the valve gear.

18. Remove the push rods.

Note:

Make sure that any solid push rods (yellow 

marking and diameter 12 mm) are fitted back 

on the inlet side only. These solid push rods 

may be replaced by hollow ones (diameter 

14 mm).

19. Remove the valve sleeve.

Note:

Due to the sealant used on the cylinder head 

bolts, the untightening torque of the cylinder 

head bolts can be substantial!

20. Remove the cylinder head bolts in the 

reverse order to that shown.

21. Remove the cylinder heads from the cylinder 

block.

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