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HOMESERVICE MANUALSACURA20043.5RLREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION OVERHAUL - M5DATRANSAXLE REASSEMBLYSECONDARY GEAR BEARING PRELOAD
2004 Acura 3.5RL

Secondary Gear Bearing Preload

2004 Acura 3.5RLSECTION Secondary Gear Bearing Preload
NOTE: If secondary gear, roller bearings, bearing races, thrust washer, transaxle housing or torque converter housing are replaced, secondary gear bearing preload must be checked.
  1. Oil seals must be removed from torque converter housing and transaxle housing before checking secondary gear bearing preload. Remove snap ring retaining secondary gear oil seal in torque converter housing.
  2. Using hammer and drift, tap oil seal from torque converter housing and transaxle housing. Remove set ring and extension shaft from secondary gear. See Figure.
  3. Install sealing bolt in secondary gear. See Fig 1. Tighten sealing bolt to 15 ft. lbs. (20 N.m). Install secondary gear in torque converter housing. DO NOT install mainshaft and countershaft in torque converter housing.
  4. Install dowel pins and gasket on torque converter housing. Install transaxle housing on torque converter housing. Install and tighten transaxle housing bolts to specification in sequence. See Fig 2. See TORQUE SPECIFICATIONS .
  5. Rotate secondary gear in both directions to fully seat roller bearings on secondary gear. Secondary gear bearing preload is determined by measuring starting torque required to rotate secondary gear in both directions.
  6. Using INCH-lb. torque wrench, measure starting torque required to rotate secondary gear in both directions. See Fig 1. Starting torque should be 31-40 INCH lbs. (3.5-4.5 N.m) at room temperature.
  7. If starting torque is not within specification, install different thickness thrust washer below bearing race in transaxle housing. See Figure. Thrust washers range in thickness from .061" (1.56 mm) to .096" (2.43 mm) in .002" (.05 mm) increments.
    8. CAUTION: DO NOT heat transaxle housing to more than 212°F (100°C), or housing may be damaged.
  8. If changing thrust washer, remove transaxle housing from torque converter housing. Using heat gun, heat area around bearing race in transaxle housing to 212°F (100°C). Tap bearing race from transaxle housing. Remove thrust washer.
  9. Install thrust washer in transaxle housing. Using hammer and bearing race installer, tap bearing race into transaxle housing. Recheck secondary gear bearing preload.
  10. Once correct secondary gear bearing preload is obtained, remove transaxle housing and secondary gear from torque converter housing. Using hammer and oil seal installer, install NEW secondary gear oil seal in torque converter housing. Install snap ring in torque converter housing.
  11. Using hammer and oil seal installer, install NEW secondary gear oil seal in transaxle housing. Install extension shaft in secondary gear. Install NEW set ring on end of extension shaft.
Fig 1: Installing Sealing Bolt & Checking Starting Torque
G93G23917Courtesy of AMERICAN HONDA MOTOR CO., INC.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.