Purpose, Function
Ensures vacuum required for braking force to compensate for the decrease in intake manifold vacuum applied to the power brake unit caused by the retard intake valve closing.
Construction
The vacuum pump is installed to the rear housing.

For smooth vane rotation, a single-vane type vacuum pump has been adopted which is equipped with an engine oil lubrication passage.

Operation
Because the vacuum pump is directly engaged with the exhaust camshaft, the vane in the vacuum pump rotates together with the exhaust camshaft, and the vacuum chamber is expanded and vacuum is generated.

Vacuum generation mechanism

Vacuum Pump Removal/InstallationDriving In Flooded Area
WARNING
Dry off brakes that have become wet by driving slowly, releasing the accelerator
pedal and lightly applying the brakes several times until the brake performance
returns to normal:
Driving with wet brakes is dangerous. Increased stopping distance or the vehicle
pulling to one side whe ...
Magnet Clutch [Manual Air Conditioner]
Purpose
The magnetic clutch transmits the rotation force from the engine to the shaft
in the A/C compressor.
Function
The magnetic clutch engages or disengages the magnetic clutch and the A/C
turns on or off by switching the power transmission from the engine.
Con ...
Resistor Removal/Installation [Manual Air Conditioner]
NOTE:
When removing the resistor, perform the procedure in the posture shown in
the figure.
1. Disconnect the negative battery cable..
2. Remove the dashboard under cover..
3. Disconnect the connector.
4. Rotate the resistor (2) while pressing the tab (1).
5. R ...