Intake Manifold

INTAKE MANIFOLD

REMOVAL AND INSTALLATION

Removal Steps 1-12:

Required Special Tools:
^ MB991398: Spark Plug Wrench
^ MB992106: O-ring Installer

REMOVAL SERVICE POINT

[[A]] SPARK PLUG REMOVAL





Using special tool MB991398, removal the spark plug.

[[B]] FUEL HIGH PRESSURE TUBE REMOVAL





1. Insert a flathead screwdriver into the clearance between the quick connector and the retainer.
2. Rotate the flathead screwdriver 90°, hold up the retainer.
3. Remove the fuel high-pressure tube.

INSTALLATION SERVICE POINTS

]]A[[ INTAKE MANIFOLD INSTALLATION





1. Tighten the nuts on the right bank to 7.0 ± 1.0 Nm (62 ± 8 in-lb).
2. Tighten the nuts on the left bank to the specified torque.

Tightening torque: 22 ± 1 Nm (16 ± 1 ft-lb)

3. Tighten the nuts on the right bank to the specified torque.

Tightening torque: 22 ± 1 Nm (16 ± 1 ft-lb)

4. Tighten the nuts on the left bank and those on the right bank again in that order.

Tightening torque: 22 ± 1 Nm (16 ± 1 ft-lb)

]]B[[ INJECTOR INSTALLATION





1. Apply clean gasoline to the O-ring.
2. Insert the injector into the fuel rail.
3. Make sure the injector rotates smoothly. If not, remove the injector to check the O-ring for damage, and replace the O-ring if necessary. Then reinsert the injector and check that it rotates smoothly.

]]C[[ O-RING INSTALLATION





When inserting an O-ring into the injector on the injection nozzle side, use special tool MB992106 to gradually expand the O-ring, and fit it in place.

]]D[[ INJECTOR SUPPORT INSTALLATION





1. Make sure that the protrusion of the injector is at the center as shown in the illustration.





2. Securely assemble the injector to the injector groove and fuel rail collar.

]]E[[ FUEL HIGH PRESSURE TUBE INSTALLATION





CAUTION: Pay attention that the O-ring of the quick connector has neither scratches nor a fall.

1. Insert the quick connector of the fuel high pressure tube into the fuel rail.
2. Fit the retainer of the fuel high-pressure tube in the direction shown in the illustration.

NOTE: Make sure the fuel high pressure tube is not pulled out when pulled lightly.

NOTE: Must confirm there is play of about 1 mm (0.04 inch) between quick connector and fuel rail.

]]F[[ SPARK PLUGS INSTALLATION





Using special tool MB991398, tighten the spark plug to the specified torque.

Tightening torque: 18 ± 2 Nm (13 ± 1 ft-lb)