Thermo-Time Coolant Switch; Auxiliary Air Regulator - Winnebago 1987-1989 LeSharo Service Manual

ENGINE FUEL SYSTEM
THERMO-TIME COOLANT SWITCH & AUXILIARY AIR REGULATOR
THERMO·TIME COOLANT SWITCH
The thermo-time coolant switch is located in the left
front of the head. It limits the time the cold start
injector is energized. It is used for 8 seconds when
starting with a coolant liquid temperature of
·20°C
(-4°F). The use time is zero when the coolant
temperature reaches
35°C (95°F).
The time limit determined by the thermo-time switch
is obtained by means of a bi-metal strip heated by an
electrical resistance. This bi-metal strip breaks the
circuit depending on the temperature reached after
a certain heating time.
AUXILIARY AIR REGULATOR
The amount of auxiliary air required when the
engine is cold is supplied by a regulator that allows
air to bypass the throttle plate.
The opening section of the auxiliary air regulator is
automatically controlled by the temperature of the
cylinder head (to which it is attached) and by a
built-in electrical heater element.
C2-6
I
____ I
1 - Contact
2 - Heating resistances
3 - Bi-Metal Strip
4 - Housing
5 - Electrical connection
Thermo- Time Coolant Switch
Auxl/lary Air
Regulator