B1EG1UK1 - 406D9 EW7J4 ENGINE

REMOVAL - REFITTING CAMSHAFT

1 - SPECIAL TOOLS

[1] Camshaft hubs setting rods (-).0189-A .

[2] Fitting drift for camshaft seal (-).0189-D1/D2 .

2 - REMOVAL

Remove :

• the timing belt
• the style cover

Remove :

• the camshaft setting rods [1]
• the camshaft pinions (1) - (2)
• the compact coil unit (3)
• the sensor (4)
• the cylinder head covers (5) - (6)(starting at the outside and working in a spiral sequence progressively slacken the cylinder head bolts)

Position the open-ended spanner on the flat (7) of the camshaft .

Slacken the bolt (8) .

Repeat the operation for the second camshaft : If necessary .

Remove :

• the hubs of the camshaft
• the casing (10)

Slacken the camshaft bearing cap cover securing bolts, progressively and in a spiral sequence starting from the outside, so as to separate the mating surfaces by a few millimetres .

Remove the camshaft bearing housings .

Remove the camshafts .

Tilt each camshaft by pressing on the end (clutch side) to release the centralising bearing (timing side) .

If the tappets are removed :

• mark the positions of the tappets before removal
• use a valve grinding type suction cup tool

Remove oil from the threads receiving the camshaft bearing housing securing bolts .

3 - REFITTING

Refitting the tappets :

• lubricate the tappet bodies
• refit the tappets in their original positions
• check that the tappets rotate freely in the cylinder head

Oil the camshaft bearings .

Check that the pins (11) are present .

Position the camshaft fitted with the sensor ring (4) on the exhaust side .

Position the second camshaft .

Apply a bead of SILICONE CATEGORIE 2 jointing paste at (A) round the perimeter of the joint faces and the tappings for the securing bolts .

Replace the bearing housing with the sensor hole (4) on the exhaust side .

Refit the second bearing housing .

Finger tighten then progressively tighten the securing bolts in the order shown .

Tighten the bolts to 0.9 daN.m .

Replace the timing gear cover .

Before fitting the camshaft seal, ensure that the bottom of the seat is free of sealing compound .

Fit new seals using the tool [2] .

Tighten the bolts securing the camshaft hubs to 8.5 daN.m by immobilising the camshaft by means of an open-ended spanner .

Refit the cylinder head covers fitted with new gaskets in the order indicated .

Proceed bolt by bolt in the order shown :

• pre-tightening : to 0.5 da.Nm
• tightening torque 1.1 da.Nm

refit the timing belt .

Continue the fitting operations in the reverse order to removal .

Initialise the various ECUs .