Transmission Disassembly — Accord 1984-89, Prelude 1984-87 (Honda Accord 3)

1. Remove the gearbox end cover.

2. Install the input shaft holder. This tool is part number 07923-6890101. Shift the transmission into reverse.

3. Loosen the locknuts of the primary shaft and secondary shaft. The locknut of the primary shaft has a left-hand thread.

4. Remove the spring clip securing the 5th gear shift fork shaft.

5. Remove the primary shaft components as an assembly - 5th gear pinion, shift fork, synchronizer sleeve, synchronizer hub and spring ring.

6. Remove the 5th gear of the secondary shaft.

7. Remove the 3 locking screws, washers, springs and detent balls.

8. Remove the reversing light switch.

9. Remove the 13 crankcase bolts.

10. Loosen the housing fastening by tapping on its edge with a light hammer or wooden mallet. To separate the gearbox housing from the clutch housing, remove the attachment of the bearing puller 079366340000, or equivalent, and screw it into the hole in the gearbox housing. After opening the retaining ring, use the bearing puller like a hammer.



11. Before removing the reverse gear shift fork, measure the gap between it and the 5th gear/reverse gear shift shaft locking pin. The tolerance for this gap is 0.05-0.5 mm. If the tolerance is not met, measure the groove width in the reverse gear shift fork. The maximum width should be 7.25 mm. If it is not met, replace the fork.



12. Measure the clearance between the reverse intermediate gear and the shift fork. The tolerance is 0.20-1.7 mm. If the tolerance is not met, remove the fork and measure the distance between the fork dogs, the tolerance is 11.8-12.1 mm. If the tolerance is not met, replace the fork.

13. Remove the reverse shift fork/shift lever arm holder if it has not already been removed.

14. Shift the transmission to neutral. Remove the input shaft bearing retainer plate.



15. Pull out the gear shift guide shaft.

16. Remove the idler shaft and reverse idler gear.

17. Pull up on the 3rd/4th and 1st/2nd gear shift shafts to shift into 4th and 2nd gear. Remove the 5th/Reverse gear shift shaft by pulling it up while lifting the reverse gear shift fork.



18. Measure the clearance between the bushing and the gasket on the selector shaft. The tolerance is 0.01-0.2 mm. If the tolerance is not met, disassemble the shift lever arm holder and replace the gasket. A set of gaskets from 0.8 to 1.6 mm in 0.2 mm increments is available.



19. Measure the gap between the shift lever arm and the shift rod guide. The tolerance is 0.10-0.60 mm. If the tolerance is not met, measure the groove width in the guide. The maximum allowable width is 8.00 mm. If the width is greater than this, replace the guide.

20. Measure the gap between the selector lever arm and the lock. The tolerance is 0.70-0.25 mm. If the tolerance is not met, then measure the width of the gap between the selector lever pins. The maximum allowable gap width is 10.15 mm. If the width is greater, then replace the lever.

21. Measure the distance between the shift lever arm and the shift guide rod. The tolerance is 0.05-0.80 mm. If the tolerance is not met, measure the groove width in the guide rod. The maximum permissible width is 12.0 mm. If the width is greater than the specified one, replace the guide rod. If the width is normal, measure the width of the key on the selector lever arm. The minimum permissible width is 11.9 mm. If the width is less, replace the lever.

22. Tilt the retainer and rod guide to the side and pull them out.

23. Remove the secondary shaft and primary shaft assembly with the 1st/2nd and 3rd/4th gear shift shafts. Inspect the shafts and especially the engagement grooves for damage.

24. Remove the gear shift rod and boot. Inspect the rod for damage and the boot for tears.

25. Remove the differential assembly.

26. Remove the retaining ring in the gearbox housing. Remove the axle seals from both housings.

27. Remove the bearing retainer plate.



28. Insert a bearing puller, or equivalent, with attachment 07936-6890101 or 07736-A01000A into the secondary shaft bearing. Remove the bearing with a hammer.

29. Remove the oil deflector washer, wash it thoroughly and install it back. Reinstall the secondary shaft needle bearing if it is not being replaced.

30. Reinstall the bearing retainer plate. Tighten the screws and countersink the screw heads.

31. Remove the input shaft bearing seal from the clutch housing. Do not remove the bearing itself unless it needs to be replaced due to poor rotation quality.

32. Remove the primary and secondary shaft bearings from the transmission housing by spreading each retaining ring and pushing the bearing out by hand. Do not remove the retaining rings unless it is necessary to clean their grooves.