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Repair guides and support for motorcycles manufactured by Honda.

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How do you change the torque converter

How does one change the torque converter on a cb400a Hondamatic motorcycle?

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Wayne, it goes something like this:"

Drain all oil from the engine

Remove the torque converter case

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Remove the torque converter by applying a screwdriver blade to the groove in its periphery

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NOTE: Use care not to damage the gasket surface of the crankcase.

REmove the needle roller bearings. Check them for wear, damage or other defects.

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Update (03/12/2023)

@miltonhope Here is how to install the torque converter

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Put the needle roller bearing on the stator shaft.

Install the torque converter in the following sequence:

  1. Engage the primary driven and drive gears together.
  2. Set the transmission in 1st or 2nd gear, then align teh splines of the main shaft with those of the torque converter turbine by rotating the rear wheel by hand.
  3. Engage the kick starter driver gear with the kick idle gear while operating the kick pedal slowly.

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Place the gasket on the crankcase, then press the two dowel pins into their respective positions.

Note:

  • Check that the torque converter check valve is installed.
  • Clean all passages in the torque converter case in/with solvent before installation

Pour the specified amount of oil into the engine through the oil filter opening.

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Let me know if this works for you. If not, I can probably get the complete manual for you.

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2 Comments:

how do you pu t it back on, mine wont go back on all the way

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Im trying to figure this out as well

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Wayne will be eternally grateful.
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