B1CJ0CK1 - 406D9 XU INJECTION

REFITTING CYLINDER HEAD

1 - SPECIAL TOOLS

2 - REFITTING

Turn the crankshaft to bring the 4 pistons to the same height .

XU5JP ENGINE XU7JB ENGINE XU7JP ENGINE XU7JP4 ENGINE

Remove the liner retaining clamps .

ALL MODELS

Check that the joint face is clean .

Place a 5 mm diameter pin punch at (A) for lifting the pin (1) .

Position a new cylinder head gasket .

IMPERATIVE : FOR THE CYLINDER HEAD SEAL IDENTIFICATION .

IMPERATIVE : BEFORE REPLACING THE CYLINDER HEAD BOLTS .

Cylinder head bolt :

• carefully brush the cylinder head bolt threads
• coat the bolts with G10

Depending on engine type :

• refit the bolts fitted with new washers

IMPERATIVE : tighten the cylinder head bolts in the order shown .

XU5JP ENGINE XU7JB ENGINE XU7JP ENGINE XU7JP4 ENGINE

B type bolt(s) (TORX) .

This operation is performed in 4 stages .

Stage 1 :

• pre-tighten to 6 da.Nm

Stage 2 :

• slacken completely, the bolt No. 1
• retighten the bolt : 2 da.Nm
• angular tightening to 107 ° (using the tool [1])
• repeat the operation, in the order indicated, for the other 9 bolts

Stage 3 :

• apply angular tightening of 100 degrees to the bolt No. 1
• repeat the operation, in the order indicated, for the other 9 bolts

Stage 4 :

• apply angular tightening of 100 degrees to the bolt No. 1
• repeat the operation, in the order indicated, for the other 9 bolts

C type bolt(s) (Hexagonal head) .

Pre-tighten : 6 da.Nm .

Bolt by bolt :

• slacken the bolts completely
• tighten to 2 da.Nm
• angular tightening to 120 ° (using the tool [1])

Run the engine until the fans cut in .

Leave to cool for at least 2 hours .

Bolt by bolt :

• slacken the bolts completely
• tighten to 2 da.Nm
• angular tightening to 120 ° (using the tool [1])

XU10J4R ENGINE

Bolt by bolt :

• pre-tighten : 3.5 da.Nm
• tightening torque: 7 da.Nm
• angular tightening to 160 ° (using the tool [1])