Intake Manifold: Service and Repair

INTAKE MANIFOLD







REMOVAL AND INSTALLATION

REMOVAL SERVICE POINT

[[A]] RADIATOR LOWER HOSE DISCONNECTION




Make mating marks on the radiator hose and the hose clamp. Disconnect the radiator hose.

INSTALLATION SERVICE POINTS

]]A[[ THERMOSTAT CASE ASSEMBLY INSTALLATION




1. Use a gasket scraper or wire brush to completely eliminate all gasket material on the gasket mounting surface.
2. Apply a bead of the sealant to the cylinder head mating surface of the thermostat case as shown.

Specified Sealant: 3M(TM) AAD part No.8672, 3M(TM) AAD part No.8679/8678 or equivalent




3. Apply sealant to the thread of the thermostat case assembly bolts as shown.

Specified Sealant: 3M(TM) AAD part No.4170 or equivalent

4. With the sealant still wet (within 15 minutes after the sealant is applied), install the thermostat case. Do not apply the sealant in an area more than the required.

]]B[[ RADIATOR LOWER HOSE CONNECTION




1. Insert each hose as far as the projection of the water inlet fitting.
2. Align the mating marks on the radiator hose and hose clamp, and then connect the radiator hose.

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)