Automatic Transmission: Mainshaft: Inspection

Clearance Measurement

1. Remove the mainshaft bearing from the transmission housing (see TRANSMISSION HOUSING BEARINGS  ).
2. Assemble the parts below on the mainshaft.
   NOTE: Do not assemble the O-rings during inspection.
   Fig 1: Parts Assembling View Of Mainshaft

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
3. Torque the mainshaft locknut to 29 N.m (3.0 kgf.m, 22 lbf.ft).
   NOTE: Mainshaft locknut has left-hand threads.
   Fig 2: Identifying Mainshaft Locknut

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
4. Hold 2nd gear against the 2nd clutch, then measure the clearance between 2nd gear and 3rd gear with a feeler gauge.
   NOTE: Take measurements in at least three places, and use the average as the actual clearance.

   STANDARD: 0.05 - 0.13 mm (0.002 - 0.005 in) 

   Fig 3: Measuring Clearance Between 2nd Gear And 3rd Gear With Feeler Gauge

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
5. If the clearance is out of tolerance, remove the thrust washer and measure the thickness.
6. Select and install a new washer, then recheck.

   THRUST WASHER 36.5 x 55 mm 

   THRUST WASHER SPECIFICATION
   
   

   No.	Part Number	Thickness
   1	90441 - P4P - 010	4.00 mm (0.157 in)
   2	90442 - P4P - 010	4.05 mm (0.159 in)
   3	90443 - P4P - 010	4.10 mm (0.161 in)
   4	90444 - P4P - 010	4.15 mm (0.163 in)
   5	90445 - P4P - 010	4.20 mm (0.165 in)
   6	90446 - P4P - 010	4.25 mm (0.167 in)
   7	90447 - P4P - 010	4.30 mm (0.169 in)
   8	90448 - P4P - 010	4.35 mm (0.171 in)
   9	90449 - P4P - 010	4.40 mm (0.173 in)
   10	90450 - P4P - 000	4.45 mm (0.175 in)

7. After replacing the thrust washer, make sure the clearance is within tolerance.