Operation CHARM: Car repair manuals for everyone.

Pressure Testing

Pressure Testing

WARNING:
- Make sure lifts, jacks and safety stands are placed properly.
- While testing, be careful of the rotating front wheels
.

CAUTION:
- Before testing, be sure the transmission is filled to the proper level.
- Connect an oil pressure gauge securely, being sure not to allow dust and other foreign particles to enter the inspection hole.
- Warm up the engine before testing.
- Set the parking brake securely, and block both rear wheels.
- Raise the front of the car and support with safety stands
.

Line Pressure Measurement
1. Set the parking brake and block both rear wheels securely.

2. Run the engine at 2,000 rpm.

3. Measure the line pressure.

NOTE: Do not reuse old aluminum washers. Install the sealing bolt in the inspection hole and tighten to the specified torque 18 Nm (1.8 kg-m, 12 lb-ft).

1. Stop the engine and connect a tachometer.





2. Connect an oil pressure gauge to each inspection hole.





3. Start the engine and measure respective pressures refer to image.





Clutch Pressure Measurement
1. Set the parking brake and block both rear wheels securely.

2. Raise the front of the car and support with safety stands.

3. Allow the front wheels to rotate freely.

4. Run the engine at 2,000 rpm.

5. Measure each clutch pressure.








Low/High Pressure Test
1. Set the parking brake and block rear wheels securely.

2. Raise the car and support with safety stands.

3. Attach the gauge set to the appropriate pressure test port.





4. Remove the cable end of the throttle control lever.

NOTE: Do not loosen the locknuts, simply unhook the cable end.

5. Warm up the engine to normal operating temperature (the cooling fan comes on).

6. With the engine idling, move the selector lever to [D3] or [D4].





7. Slowly move the throttle linkage to increase engine rpm until pressure is indicated on the appropriate gauge. Then release the throttle linkage, allowing the engine to return to an idle, and record the pressure reading.





8. With the engine idling, lift the throttle control lever up approximately 1/2 of its possible travel and increase the engine rpm until pressure is indicated on the appropriate gauge. Record the highest pressure reading obtained.

9. Repeat steps 7 and 8 for each clutch pressure being inspected.








Throttle B Pressure Measurement
1. Set the parking brake securely and block the wheels.

2. Run the engine at 1,000 rpm.

3. Disconnect the throttle control cable from the throttle lever and set the control lever in full throttle position.