B1DG0MK1 - 406D9 DW10 ENGINE

REASSEMBLY ENGINE (CYLINDER HEAD)

1 - CHECKING CYLINDER HEAD BOLTS BEFORE RE-USE

A : Cylinder head bolt identification mark (DW10 engine) .

Measure the length (X) of the cylinder head bolts .

IMPERATIVE : the length x must be less than 133,4 mm .

Brush the threads of the cylinder head bolts .

2 - REASSEMBLY

remove the flywheel stop [1i] .

2 - 1 - 1ST FITTING : WITH SINGLE ENGINE FLYWHEEL

peg the flywheel using the rod [1g] .

2 - 2 - 2ND FITTING : WITH DOUBLE ENGINE FLYWHEEL

peg the flywheel using the rod [1y] .

Check that the pins are present (1) .

Fit a new cylinder head gasket Following the direction of fitting .

Ensure that the camshaft is pinned .

Refit the cylinder head .

Brush the threads of the cylinder head bolts .

fit the cylinder head bolts coated with MOLYKOTE G RAPID PLUS on the threads and under the bolt heads .

2 - 3 - CYLINDER HEAD TIGHTENING

Tighten the cylinder head bolts in the order shown (using the tool [4]) .

Stage 1 :

• proceed bolt by bolt in the order shown
• tightening torque of bolts : 2 da.Nm

Stage 2 :

• proceed bolt by bolt in the order shown
• tightening torque of bolts : 6 da.Nm

Stage 3 :

• proceed bolt by bolt in the order shown
• angular tightening to 220 ° (using the tool [3])

NOTE : it is not necessary to retighten the cylinder head after bringing the engine up to operating temperature .

IMPERATIVE : oil the O-rings before refitting .

Fit :

• a new seal (2)
• a new seal (3)
• the vacuum pump (4)

Tighten: The bolts to 2 da.Nm/The nut to 2 da.Nm .

Fit the cylinder head cover using a new gasket .

Run up the bolts .

Gradually tighten the cylinder head cover bolts in a spiral starting from the inside .

Tightening torque: 1 da.Nm .