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/InstallationWiper Blades
CAUTION
●Hot waxes applied by automatic car washers
have been known to affect the wiper's ability to clean windows.
● To prevent damage to the wiper blades,
do not use gasoline, kerosene, paint thinner, or other solvents on or near them.
● When the wiper lever is in the ...
Rear Door Speaker Removal/Installation
Without Bose®
NOTE:
If the procedure is performed while holding the front door speaker cone,
it could deform the cone causing a malfunction. Therefore, perform the procedure
while holding any part other than the cone.
1. Disconnect the negative battery cable..
2. Remove the r ...
Magnetic Clutch Disassembly/Assembly [Manual Air Conditioner]
1. Disassemble in the order indicated in the table.
1
Bolt
(See Bolt Removal/Installation Note.)
2
Pressure plate
3
Shim
(See Shim Installation Note.)
4
Snap ring
(See Snap Ring ...