Saab 900 Service Manual page 35

Heating and ventilation system, air conditioning system 854-2.3
Temperature control valve, 1979 models
7 Remove the lower section of the heater
housing.
8 Drain off sufficient coolant to enable the
hoses to the water valve in the engine com-
partment to be disconnected without spil-
lage. To prevent coolant leaking onto the
carpeting, plug the hose ends before remov-
ing the heat exchanger/water valve.
9 Separate the heat exchanger with water
valve from the heater housing and gUide it
backwards and downwards. To make sure
there is room for the water va Ive to pass be-
tween the heater housing and the steering
column, unhook the brake pedal return
spring and depress the pedal slightly.
10 Remove the capillary tube from the heat ex-
changer (where applicable) and the screws!
bolts in the water valve flange.
11 Always renew the gasket for the water valve
flange. Handle the capillary tube with care,
never allowing it to become kinked or
creased.
Refit in the reverse order.
Water hose connections
1 To engine coolant pump
2 From coolant distribution pipe, connected to the
engine block
3 Upper connection branch on the temperature con-
trol valve
4 Lower connection branch on the temperature con-
trol valve
Saab 900
1
2
3
4
S 8 006
I