B1EG21K1 - 307 EW10J4 ENGINE

REMOVAL - REFITTING CAMSHAFT

1 - SPECIAL TOOLS

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

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

[3] Timing pulley braking tool (-).0153-AJ .

2 - REMOVAL

Remove :

• the timing belt
• the style cover

Remove :

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

Fit the tool [3] between the camshaft pulleys (1) - (2) .

Slacken the camshaft hub mounting bolts .

Remove the pulleys (1) - (2) .

Remove the timing cover (7) .

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

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 (8) are present .

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

Position the second camshaft .

apply a bead of E10 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 (1 to 10) .

Pre-tighten : 0.5 da.Nm .

Tightening torque : 1 da.Nm .

Replace the timing gear cover (7) .

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

Fit new seals using the tool [2] .

Identification Camshaft gears :

• B = inlet
• C = exhaust

Fit the tool [3] between the camshaft pulleys .

Tighten the hub mounting bolts to 7.5 dan.m .

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

Proceed bolt by bolt in the order shown : 1 da.Nm .

Continue the fitting operations in the reverse order to removal .

refit the timing belt .