Intake Manifold: Service and Repair

INTAKE MANIFOLD

REMOVAL AND INSTALLATION

Intake Manifold Part 1:

Intake Manifold Part 2:

REMOVAL SERVICE POINT

[[A]] FUEL RAIL, FUEL INJECTOR, FUEL RETURN PIPE AND FUEL PRESSURE REGULATOR ASSEMBLY REMOVAL

CAUTION: Be careful not to drop the fuel injector when the fuel rail is removed.

The fuel rail must be removed with the fuel injector, fuel return pipe and fuel pressure regulator attached.

INSTALLATION SERVICE POINT

]]A[[ FUEL HIGH-PRESSURE HOSE INSTALLATION

CAUTION: Do not let the engine oil get into the fuel rail, or it will be damaged.

1. Apply a drop of new engine oil to the O-ring.
2. Turn the fuel high-pressure hose to the right and left to install to the fuel rail.
Be careful not to damage the O-ring. After installing, check that the fuel high-pressure hose turns smoothly.
3. If the fuel high-pressure hose does not turn smoothly, the 0- ring may be trapped. Remove the fuel high-pressure hose, re-install the fuel high-pressure hose into the fuel rail and check again.
4. Tighten the fuel high-pressure hose to the specified torque

Tightening torque: 5.0 ± 1.0 Nm (44 ± 9 in-lb)

INSPECTION
Check the following points, replace the part if a problem is found.

Intake Manifold Check
1. Check for damage or cracking of any part.
2. Clogging of the negative pressure (vacuum) outlet port, or clogging of the exhaust gas recirculation passages.
3. Using a straight edge and feeler gauge, check for distortion of the cylinder head installation surface.

Standard value: 0.15 mm (0.006 inch) or less

Limit: 0.20 mm (0.008 inch)