Index Nissan Nissan PULSAR N13 Series / ASTRA LD Series (1.6 and 1.8 Liter) 1987 – 1991 year - Service Manual
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Cooling and Heating Systems
77
These openings are plugged with welch plugs. The plugs may have to be renewed when cleaning the
TO RENEW
NOTE: If a welch plug is found to be
(1) Drain the radiator and cylinder block. accessories to gain ample working space around the (3) Using a punch and hammer, tap the welch plug on its outer circumference into its opening. (4) Grasp the edge of the welch plug with a pair of multi-grip pliers and using the shoulder of the pliers (5) Thoroughly clean and dry the welch plug opening.
(6) Lightly smear the edge of a new welch plug and the opening with Loctite 675. (7) Place the welch plug onto the opening and using a tube or socket fitting the rim of the plug, drive NOTE; The welch plug must be driven into
(8) Install the components which were removed to gain access to the plug. (9) Fill the cooling system as previously de- scribed. With the reserve tank pressure cap installed, 10. HEATER UNIT, WATER VALVE AND CONTROLS DESCRIPTION The heater controls use four adjustments to direct air through the vehicle.
The air intake control selects fresh air from outside the vehicle or recirculates air from inside the
The air control lever is used to direct air to the face outlets, the floor outlets and the windscreen
The temperature control opens or shuts the heater water valve to control the flow of engine coolant
The fan speed control switches the fan on and off and is used to select the desired fan speed.
Air conditioned models use identical controls with the addition of an air conditioner on/off button.
Tap the welch plug on its outer circumference into the cylinder block. Using a correct fitting tube or socket, drive the welch plug into its opening. View of the heater controls. |