What is the maximum allowable drive plate runout?

0.5 mm (0.020 in). If runout exceeds this allowance, the drive plate and ring gear must be replaced.

What should distance "A" be when installing the torque converter into the transaxle?

Distance "A" must be more than 21.1 mm (0.831 in) to confirm the torque converter and transaxle are correctly assembled.

What should be done before removing the torque converter?

Inscribe matching marks on the torque converter and drive plate so they can be replaced in their original positions during assembly, and plug up openings such as the oil charging pipe.

What should be applied to the torque converter securing bolts before installation?

Apply locking sealer to the threads of the bolts before installing the torque converter securing bolts.

What is the final check after installing the torque converter?

Rotate the crankshaft several turns and check that the transaxle rotates freely without binding.

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Nissan Micra Automatic Transaxle Removal & Installation - Service Manual AT-12

Automatic transaxle removal and installation: torque converter to drive plate with runout spec

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AT-12 transaxle removal/installation; drive plate max allowable runout 0.5 mm, torque converter to transaxle distance A more than 21.1 mm.

AI caption October 2005 · Photo 194 of 412

This is page AT-12 from a factory service manual's Automatic Transaxle (AT) section, covering "Removal and Installation" of the automatic transaxle. The Removal column shows a diagram (SAT469) of the vehicle supported with a transmission jack under the A/T, and instructs the technician to disconnect the drive shafts (referencing Section FA), remove the bolts securing the torque converter to the drive plate (turning the crankshaft to access them, per illustration SAT204A), inscribe matching marks on the torque converter and drive plate for reassembly, and plug openings such as the oil charging pipe. A caution warns against striking adjacent parts when dismounting the transaxle. The Installation column specifies checking drive plate runout with a dial indicator (illustration AT268), with a maximum allowable runout of 0.5 mm (0.020 in); if exceeded, the drive plate and ring gear must be replaced. When connecting the torque converter to the transaxle, distance "A" must be more than 21.1 mm (0.831 in), shown in cross-section SAT416. Final steps include aligning matching marks, applying locking sealer to the converter bolt threads, and rotating the crankshaft several turns after installation to verify the transaxle rotates freely without binding.

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Frequently asked questions

What is the maximum allowable drive plate runout?: 0.5 mm (0.020 in). If runout exceeds this allowance, the drive plate and ring gear must be replaced.
What should distance "A" be when installing the torque converter into the transaxle?: Distance "A" must be more than 21.1 mm (0.831 in) to confirm the torque converter and transaxle are correctly assembled.
What should be done before removing the torque converter?: Inscribe matching marks on the torque converter and drive plate so they can be replaced in their original positions during assembly, and plug up openings such as the oil charging pipe.
What should be applied to the torque converter securing bolts before installation?: Apply locking sealer to the threads of the bolts before installing the torque converter securing bolts.
What is the final check after installing the torque converter?: Rotate the crankshaft several turns and check that the transaxle rotates freely without binding.