1975 Datsun 280z FSM - Spooled up Racing

Air Conditioning
FAST IDLE ACTUATOR
ADJUSTMENT OF IDLE SPEED
Engine model
L28
Transmission
Manual
Automatic
When A/C is OFF
800 rpm
700 rpm
at "D" range
WhenF.I.C.D.
is actuated
800 rpm
800 rpm
at "N" range
AIR INTAKE DOOR
ACTUATOR
REMOVAL AND
INSTALLATION
1. Disconnect battery ground cable.
2. Remove snap ring from top of
actuator lever.
3. Remove two mounting screws
and actuator from air intake housing.
4. Disconnect vacuum hose from
actuator, and remove actuator.
5. Installation is to be done in reverse
order of removal.
The fast idle control device is used
on car equipped with air conditioner
to raise the idle speed automatically.
Use the following procedures when
adjusting.
1. Run the engine until it reaches
operating temperature.
2. With air conditioner in OFF
(when compressor is not operated),
make sure that engine is at correct idle
speed.
3. With air conditioner in ON (when
F.I.C.D. is actuated), set the engine
speed to 800 rpm using the following
procedures as a guide.
(1) Adjust the F.I.C.D. lever stroke
by means of length of lever until
engine speed is 800 rpm.
On cars equipped with automatic
transmission, make this adjustment
with the shift control lever in the "N"
position.
(2) Depress and release the accelerator
pedal several times, and make sure
that the engine speed reduces to 800
rpm as the pedal is released.
If correct adjustment is not made,
repeat steps (1) and (2) above until the
engine speed is 800 rpm at idling.
BLOWER MOTOR
REMOVAL AND
INSTALLATION
1. Disconnect battery ground cable.
2. Remove glove box.
3. Remove defroster duct on the
side of assistant's seat.
4. Remove wiring connector of
blower motor.
5. Remove three screws mounting
blower motor, and take out motor
from blower housing.
Fig. AC-37
AC266
Removing blower motor
Note: Make sure that air intake door
shuts off the outside air completely.
AC267
Fig. AC-38 Air intake door actuator
BLOWER HOUSING
REMOVAL AND
INSTALLATION
1. Disconnect battery ground cable.
2. Disconnect vacuum hose from air
intake door actuator.
3. Remove defroster duct located on
the side of assistant's seat.
4. Remove two wiring connectors
(one for blower motor, and the other
for resistor).
5. Remove three bolts mounting
housing assembly, one installed on
upper side and two on lower side.
6. Remove blower housing with air
intake housing.
AC554
Fig. AC-36 Fast idle actuator
Notes:
a. Between blower motor and blower
housing are three spacers inserted.
Be careful not to lose them.
b. In removing blower motor, remember
its direction carefully so that it
is reinstalled properly.
6. Installation is to be done in reverse
sequence of removal.
AC-30
AC268
Fig. AC-39
Removing blower housing
7. Installation is to be done in reverse
sequence of removal.