Nissan Sentra Service Manual: Water hose

Exploded View

1. Water outlet
2. Heater thermostat assembly
3. Hose clamp
4. CVT oil warmer
5. Water hose

1. To thermostat housing
2. To engine oil cooler

: Always replace after every
disassembly.

: NВ·m (kg-m, ft-lb)

Removal and Installation

REMOVAL

WARNING:

Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down and turning it all the way.

CAUTION:

Perform these steps after the coolant temperature has cooled sufficiently.

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.

1. Remove the engine under cover. Refer to EXT-31, "ENGINE UNDER COVER : Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-12, "Changing Engine Coolant".
3. Remove water hose and heater thermostat assembly.

INSTALLATION

Installation is in the reverse order of removal.

• Refer to the following when installing water hoses.

• Refer to the followings when installing hose clamp.

CAUTION:

• Do not reuse hose clamp.

• Hose clamp should not interfere with the bulge of fluid cooler tube.

Inspection

INSPECTION AFTER REMOVAL

Heater Thermostat

1. Fully immerse the heater thermostat 1 in a container (A) filled with water. Continue heating the water while stirring.
2. Continue heating the heater thermostat for 5 minutes or more after bringing the water to a boil.

3. Quickly take the heater thermostat out of the hot water, measure the heater thermostat within 10 seconds.

• Place dial indicator (A) on the pellet (B) and measure the elongation from the initial state.

Standard : Refer to TM-289, "Heater Thermostat".

4. If out of standard, replace heater thermostat.

INSPECTION AFTER INSTALLATION

Start the engine, and check the joints for coolant leakage.