Vacuum pump ASSY
Components Inspection Removal / installation
BRAKE SYSTEM/PEDAL/BRAKE BOOSTER DEVICE
VACUUM PUMP ASSY
EXPLODED VIEW
REMOVAL
1. Disconnection of the union to connector tube hose
(1) Change the front hood stay position from A to B, and fully open the front hood.
(2) Slide the clamp and disconnect the union to connector tube hose from the vacuum pump ASSY.
2. Removal of front upper suspension-to-cowl brace SUB-ASSY RH (Refer to 
)
)
3. Removal of vacuum pump ASSY
(1) Remove 3 bolts.
(2) Using a flat tip screwdriver or an equivalent to the position shown in the figure, pry the vacuum pump ASSY to remove it.
(3) Remove the O-ring.
(4) Remove the liquid gasket from the vacuum pump ASSY and the engine unit.
INSTALLATION
1. Installation of vacuum pump ASSY (transmission A/T)
(1) Apply a thin coat of engine oil to a new O-ring and install it.
(2) As shown in the figure, apply the seal gasket 1217G to the cam carrier RH.
Captions in illustration
| *a |
Groove end |
| *b |
Diameter: 2.0 - 4.0 mm {0.08 - 0.16 in} |
| *c |
1.0mm {0.04in} or less |
CAUTION:
·Clean and degrease the installation surface.
·Install within 5 min. after applying the seal gasket.
·Install within 5 min. after applying the seal gasket.
NOTE:
For replacing the vacuum pump ASSY on the vehicle, apply seal gasket 1217G to the vacuum pump ASSY side.
(3) Align the groove on the vacuum pump ASSY and the claw on the intake camshaft RH.
Captions in illustration
| *a |
Groove on the vacuum pump ASSY |
| *b |
Claw of the intake camshaft (RH) |
CAUTION:
Be careful not to let the O-ring catch.
(4) Install the vacuum pump ASSY with 3 bolts.
Standard value:
Standard value:
Tightening torque=16N·m
{
163kgf·cm}
{11.8ft·lbf}
2. Installation of union to connector tube hose
(1) Install the union to connector tube hose with a clamp.
3. Installation of front upper suspension-to-cowl brace SUB-ASSY RH (Refer to )
)ON-VEHICLE INSPECTION
NOTE:
Maintenance of the vacuum pump ASSY is scheduled to be done in every 200,000 km (125,000 mile) of drive. Disassemble and check the vacuum pump ASSY in every 200,000 km (125,000 mile) of drive. If necessary, replace the parts. Check the following items.
·Function inspection of vacuum pump ASSY
·Component check
·Component check
1. Function inspection of vacuum pump ASSY
(1) Slide the clip and disconnect the union to connector tube hose from the vacuum pump ASSY.
(2) Connect the vacuum gauge hose to the vacuum pump ASSY.
(3) Use the vacuum gauge in the portable brake tester.
(4) Plug the hose on the other side of the vacuum gauge with the hose plug No.2.
(5) Start the engine and warm up for 2 minutes or more.
(6) Check the vacuum pressure of the vacuum pump ASSY when the engine is running at idle speed.
NOTE:
Read the value after 25 seconds have passed from starting the measurement.
Captions in illustration
| *1 |
Vacuum gauge |
Limit
: 93 kPa {698 mmHg, 13.5 psi}
(7) If the value is below the limit, replace the vacuum pump ASSY. (Refer to )
)NOTE:
·Maintenance of the vacuum pump ASSY is scheduled to be done in every 200,000 km (125,000 mile) of drive. Check the vacuum pump ASSY in every 200,000 km (125,000 mile) of drive. If necessary, replace the parts. (Refer to )
·After replacing the vacuum pump ASSY, perform function inspection of the vacuum pump ASSY.
)·After replacing the vacuum pump ASSY, perform function inspection of the vacuum pump ASSY.
(8) Remove the vacuum gauge.
(9) Connect the union to connector tube hose to the vacuum pump ASSY with a clip.