Air Outlet Thermostat And Shutter; Tension Adjustment, Thermostat To Shutter Link; Location Of Cooling Air Outlet Thermostat And Shutter; Diagram Of The Heating System Safety Device (Sedan And Station Wagon) - Fiat 500L Workshop Manual

COOLING AIR DUCTS
FIG 4 : 3 Oil sump with blower cowling. Arrows indicate
air outlets
VENT TUBE
FIG 4 : 4 Cooling blower mounted on generator shaft
extension

4 : 2 Air outlet thermostat and shutter

Refer to FIGS 4 :1 and 4 :2 where it will be seen that
the thermostat is located on the righthand side of the
engine cowling. The thermostat should start opening the
engine heated air outlet shutter when the temperature of
the air reaches between 158-165°F (178-185°F station
wagon) and the shutter should be in the wide open posi-
tion when the air has reached a temperature of between
178-189°F (196-207°F station wagon).
When the engine cooling air control system is being
inspected or serviced the following points should be
noted:
1 Check that when the shutter is in the closed
position the edge mates perfectly with the cowling
seating.
2 Ensure that the shutter can swivel freely.
3 Check that the initial thermostat
between .0197 to .0394 inch.
4 Generally check the engine cowling for distortion, bad
jbint sealing or cracks.
56
OIL DRAIN PLUG
GENERATOR ARMATURE
SHAFT
BLOWER
movement is
4 : 3 Tension adjustment, thermostat to shutter
link:
The tension may be varied by using the shims which are
located between the upper shank of the thermostat and
the cover shoulder washer. Before any adjustment is made
ensure that the shutter is able to move freely and that the
return spring has not stretched or fractured. Refer to
FIG 4:5 which shows the location of the shutter and the
return spring.
ENGINE COWLING.
SHUTTER RETURN SPRING
FIG 4 : 5 Location of cooling air outlet thermostat and
shutter
FIG 4 : 6 Diagram of the heating system safety device
(sedan and station wagon)
K e y to Fig 4 : 6 1 Circular seat in cylinders
ducts 3 Pierced screws
THERMOSTAT
LINK
AIR OUTLET SHUTTER
2 Head