Engine Cooling System: Removal & Installation Nissan 350Z I

REMOVAL OF LIQUID GASKET SEALING

1. After removing the mounting bolts and nuts, separate the mating surface using a seal cutter and remove the old liquid gasket sealing. CAUTION: Be careful not to damage the mating surfaces.
2. In areas where the cutter is difficult to use, use a plastic hammer to lightly tap the areas where the RTV Silicone Sealant is applied.

Scheme 9

Scheme 10

1. Using a scraper, remove the old liquid gasket adhering to the gasket application surface and the mating surface. Remove the liquid gasket completely from the groove of the gasket application surface, mounting bolts, and bolt holes.
2. Wipe the gasket application surface and the mating surface with white gasoline (lighting and heating use) to remove adhering moisture, grease and foreign materials.
3. Attach the liquid gasket tube to the tube presser. Use Genuine RTV Silicone Sealant or equivalent. Refer to " «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-212003-S40484602202005122200000) ".
4. Apply the liquid gasket without breaks to the specified location with the specified dimensions.

Scheme 11

1. If there is a groove for the liquid gasket application, apply the liquid gasket to the groove.
2. As for the bolt holes, normally apply the liquid gasket inside the holes. Occasionally, it should be applied outside the holes. Make sure to read the text of this article.
3. Within five minutes of gasket application, install the mating component.
4. If the liquid gasket protrudes, wipe it off immediately.
5. Do not retighten after the installation.
6. Wait 30 minutes or more after installation before filling the engine with oil and coolant.

Scheme 12

INSTALLATION

1. Install in the reverse order of removal.

Scheme 13

1. Pull the negative-pressure valve to open it and check that it closes completely when released. Check that there is no dirt or damage on the valve seat of the radiator cap negative-pressure valve. Check that there are no unusualness in the opening and closing conditions of the negative-pressure valve.
2. Check radiator cap relief pressure. Standard: 78 - 98 kPa (0.8 - 1.0 kg/cm 2 , 11 - 14 psi) Limit: 59 kPa (0.6 kg/cm 2 , 9 psi) When connecting the radiator cap to the radiator cap tester adapter (special service tool) and radiator cap tester, apply engine coolant to the cap seal surface. Replace the radiator cap if there is an unusualness in the negative-pressure valve, or if the open-valve pressure is outside of the limit.

Scheme 14

REMOVAL

1. Drain engine coolant from the radiator. Refer to " «DRAINING ENGINE COOLANT»(ref-212004-S25580840632005122300000) "Changing Engine Coolant". CAUTION: Perform when the engine is cold.
2. Remove air duct (inlet) and air cleaner case assembly. Refer to " «REMOVAL AND INSTALLATION»(ref-170482-S41791701252005011000000) "
3. Disconnect radiator upper hose.
4. Disconnect fan motor connectors.
5. Remove radiator cooling fan assembly.

Install in the reverse order of removal.

1. Cooling fan is controlled by ECM. For details, refer to " «DTC P1217: ENGINE OVER TEMPERATURE»(ref-159515-S11962247412003121500000) ".

1. Remove undercover using power tools.
2. Drain engine coolant from radiator. Refer to " «DRAINING ENGINE COOLANT»(ref-212004-S25580840632005122300000) "Changing Engine Coolant".
3. Remove air duct and air cleaner case assembly. Refer to , " «REMOVAL AND INSTALLATION»(ref-170482-S41791701252005011000000) "
4. Remove water drain plug on water pump side of the engine.
5. Remove radiator lower hose from thermostat and thermostat housing.
6. Remove oil cooler water hose from thermostat and thermostat housing.
7. Remove thermostat and thermostat housing. Do not disassemble thermostat and thermostat housing. Replace them as a unit, if necessary.

Scheme 15

Install in the reverse order of removal.

Scheme 16

1. Remove undercover using power tool.
2. Drain engine coolant from drain plugs on radiator and both sides of cylinder block. Refer to " «DRAINING ENGINE COOLANT»(ref-212004-S25580840632005122300000) "Changing Engine Coolant".
3. Remove engine cover using power tool.
4. Remove air duct and air cleaner case assembly. Refer to , " «REMOVAL AND INSTALLATION»(ref-170482-S41791701252005011000000) ".
5. Remove radiator upper hose and heater hose.

Install in the reverse order of removal.

1. Securely insert each hose, and install a clamp at a position where it does not interfere with the pipe bulge.
2. When inserting a water pipe into water outlet, apply neutral detergent to O-ring.