Part 1
HIGH CLUTCH CLEARANCE MEASUREMENT/ADJUSTMENTPreparation Before Servicing
1. Print out the measurement/adjustment value input sheet. (See MEASUREMENT/ADJUSTMENT VALUE INPUT SHEET.)
NOTE:
- When performing the measurement/adjustment, input the measured and calculated values into the measurement/adjustment value input sheet.
- When performing the other measurements/adjustments, if the measurement/adjustment value input sheet has been printed out, use the printed sheet.
High Clutch Clearance Measurement
1. Assemble the snap ring.
CAUTION: After assembling the snap ring, verify that the snap ring is securely inserted into the bottom of the snap ring groove.
NOTE: Snap ring size: Outer diameter approx. 127.4 mm {5.016 in}
2. Set the oil pump on the workbench as shown in the figure.
A : Rubber plate
CAUTION: To reduce error during the high clutch clearance measurement, use the rubber plates to adjust the alignment surface of the oil pump with the transaxle case so that it is level.
3. Assemble the thrust needle bearing to the clutch component using the following procedure:
NOTE: Thrust needle bearing size: Outer diameter approx. 72.7 mm {2.86 in}
1. To prevent the thrust needle bearing from dropping out, apply ATF (ATF FZ) to the thrust needle bearing.
2. Assemble the thrust needle bearing.
4. Assemble the parts assembled together in Step 3 to the oil pump.
5. Install the SST.
6. Place a 98-196 N {10.0-19.9 kgf, 23.0-44.0 lbf} weight on the SST.
A : Weight (V-block)
CAUTION: To reduce error during the high clutch clearance measurement, place the weight near the center of the SST.
NOTE: Use a V-block as a weight.
7. Set the measuring instrument to the oil pump using the following procedure:
1. Install an appropriate steel plate for securing the magnetic stand used in the procedure shown in the figure..
CAUTION: If the bolt and nut are tightened with excessive force when installing the steel plate, the alignment surface of the oil pump with the transaxle case could be damaged. Tighten the bolt and nut so that the steel plate does not move during the high clutch clearance measurement.
NOTE: When installing the steel plate to the oil pump, use an M8 bolt and nut.
Steel plate installation bolt tightening torque
15 N.m {1.5 kgf.m, 11 ft.lbf} or less (tighten so that steel plate does not move during high clutch clearance measurement)
2. Set the dial gauge and magnetic stand as shown in the figure.
A : Dial gauge
B : Magnetic stand
CAUTION: To reduce error during the high clutch clearance measurement, set the dial gauge so that it is perpendicular to the alignment surface of the oil pump with the transaxle case.
3. Set the dial gauge end near the center of the weight.
A : Area in which dial gauge end is set
CAUTION: To reduce error during the high clutch clearance measurement, set the dial gauge end to within the area shown in the figure.
8. Measure the high clutch clearance using the following procedure:
1. Blow compressed air into the oil passage shown in the figure and verify the operation condition of the high clutch piston (approx. 3 times).
WARNING: Always wear protective eye wear when using the air compressor. Otherwise, ATF or dirt particles blown off by the air compressor could get into the eyes.
CAUTION: To prevent damage to parts, always use an air compressor which is adjusted to the indicated pressure.
Compressed air pressure
0.39-0.44 MPa {4.0-4.4 kgf/cm2, 57-63 psi}
2. Blow compressed air into the oil passage shown in the figure and operate the high clutch piston to read the value when the dial gauge is stabilized.
WARNING: Always wear protective eye wear when using the air compressor. Otherwise, ATF or dirt particles blown off by the air compressor could get into the eyes.
CAUTION: To prevent damage to parts, always use an air compressor which is adjusted to the indicated pressure.
Compressed air pressure
0.39-0.44 MPa {4.0-4.4 kgf/cm2, 57-63 psi}
3. Input the dial gauge value, which was read while the high clutch piston was operating, into the measurement/adjustment value input sheet.
4. Release the compressed air and read the dial gauge value without the high clutch piston operating.
5. Input the dial gauge value, which was read without the high clutch piston operating, into the measurement/ adjustment value input sheet.
6. Perform the following calculation to calculate the high clutch clearance.
High clutch clearance = A - B
A : Dial gauge value with high clutch piston operated
B : Dial gauge value without high clutch piston operated
Note
Example
A : Dial gauge value with high clutch piston operating is 1.605 mm {0.06319 in}
B : Dial gauge value without high clutch piston operating is 0.055 mm {0.00217 in}
High clutch clearance = 1.605 mm {0.06319 in} - 0.055 mm {0.00217 in} = 1.550 mm {0.06102 in}
7. Input the calculated high clutch clearance into the measurement/adjustment value input sheet.
8. Verify that the high clutch clearance satisfies the specification.
Specification
1.300-1.500 mm {0.05119-0.05905 in}
- If not within the specification, adjust the high clutch clearance. (See High Clutch Clearance Adjustment.)
9. Remove the dial gauge and magnetic stand.
A : Dial gauge
B : Magnetic stand
10. Remove the steel plate for securing the magnetic stand using the procedure shown in the figure.
11. Remove the weight on the SST.
A : Weight (V-block)
12. Remove the SST.
13. Remove the clutch component.
14. Remove the thrust needle bearing.
15. Take the oil pump off the rubber plates.
High Clutch Clearance Adjustment
1. Remove the dial gauge and magnetic stand.
A : Dial gauge
B : Magnetic stand
2. Remove the weight on the SST.
A : Weight (V-block)
3. Remove the SST.
4. Remove the snap ring.
5. Measure the thickness of the removed snap ring.
NOTE: Recommended measuring instrument: Micrometer
6. Input the measured snap ring thickness into the measurement/adjustment value input sheet.