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Component Disassembly & Reassembly: Countershaft: Reassembly

  1. Install components on countershaft without installing "O" rings on countershaft. See Figure and Figure .
  2. Install used lock nut on countershaft. Tighten lock nut to 22 ft. lbs. (30 N.m). To check countershaft 4th gear clearance, hold 1st-hold clutch against reverse clutch.
  3. Using feeler gauge, measure countershaft 4th gear clearance between thrust shim and distance collar, located at countershaft 4th gear. See Figure .
  4. Countershaft 4th gear clearance should be 0-.003" (0-.08 mm). If gear clearance exceeds .003" (.08 mm), install different thickness thrust shim. See COUNTERSHAFT 4TH GEAR THRUST SHIM  SPECIFICATIONS. Install thrust shim and recheck clearance.
  5. To check countershaft 2nd gear clearance, install dial indicator on countershaft so stem of dial indicator is resting against countershaft 2nd gear.
  6. Measure countershaft 2nd gear clearance while holding countershaft 1st gear toward 1st hold clutch. Measure countershaft 2nd gear clearance in 3 different places.
  7. Use average reading as countershaft 2nd gear clearance. Countershaft 2nd gear clearance should be .002-.005" (.05-.13 mm).
  8. Install different thickness thrust shim between countershaft 2nd gear and parking gear if clearance is not within specification. See COUNTERSHAFT 2ND GEAR THRUST SHIM SPECIFICATIONS  table. Recheck countershaft 2nd gear clearance.
  9. Once correct gear clearances are obtained, disassemble countershaft. Lubricate all components with ATF. Wrap splines of countershaft with tape. Install NEW "O" rings on countershaft. Reassemble countershaft.
NOTE: Ensure thrust needle bearings are installed with unrolled edge of bearing retainer facing washer.
COUNTERSHAFT 4TH GEAR THRUST SHIM SPECIFICATIONS

Thrust Shim No. Part Number Thickness In. (mm)
1 90451-PY4-000 .117-.118 (2.97-3.00)
2 90452-PY4-000 .119-.120 (3.02-3.05)
3 90453-PY4-000 .121-.122 (3.07-3.10)
4 90454-PY4-000 .123-.124 (3.12-3.15)
5 90455-PY4-000 .125-.126 (3.17-3.20)
6 90456-PY4-000 .127-.128 (3.22-3.25)
7 90457-PY4-000 .129-.130 (3.27-3.30)
8 90458-PY4-000 .131-.132 (3.32-3.35)
9 90459-PY4-000 .133-.134 (3.37-3.40)
10 90460-PY4-000 .135-.136 (3.42-3.45)
11 90461-PY4-000 .137-.138 (3.47-3.50)
COUNTERSHAFT 2ND GEAR THRUST SHIM SPECIFICATIONS

Thrust Shim No. Part Number Thickness In. (mm)
1 90411-PY4-000 .050-.051 (1.27-1.30)
2 90412-PY4-000 .052-.053 (1.32-1.35)
3 90413-PY4-000 .054-.055 (1.37-1.40)
4 90414-PY4-000 .056-.057 (1.42-1.45)
5 90415-PY4-000 .058-.059 (1.47-1.50)
6 90416-PY4-000 .060-.061 (1.52-1.55)
7 90417-PY4-000 .062-.063 (1.57-1.60)
8 90418-PY4-000 .064-.065 (1.62-1.65)
9 90419-PY4-000 .066-.067 (1.67-1.70)
10 90420-PY4-000 .068-.069 (1.72-1.75)
11 90421-PY4-000 .070-.071 (1.77-1.80)
12 90422-PY4-000 .072-.073 (1.82-1.85)
13 90423-PY4-000 .074-.075 (1.87-1.90)
Fig 1: Checking Countershaft 2nd & 4th Gear Clearances (1 of 2)
G93B23904Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Checking Countershaft 2nd & 4th Gear Clearances (2 of 2)
G93C23905Courtesy of AMERICAN HONDA MOTOR CO., INC.