Disco 2004 90K: Failed flex Plate and transmission questions, with pictures
#1
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Help, I had a severe ATF fluid leak that I initially attributed to failure of the front seal in the transmission. I have pulled the transmission and have the following questions:
1. Flex plate, why did my flex plate fail - see picture
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-flexplate.jpg](https://landroverforums.com/forum/attachments/discovery-ii-18/27790d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-flexplate.jpg)
2 On the input shaft, which I think is the splined shaft shown coming out of the transmission in the following picture, the axial end-float should measure 0.2 to 0.4 mm(0.008 to 0.016 in.).
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-discovery457.edited-fore-aft.png](https://landroverforums.com/forum/attachments/discovery-ii-18/27791d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-discovery457.edited-fore-aft.png)
Have I understood the manual in that the axial end float is measured fore to aft, from the torque converter towards the transfer case?
3. What should my radial run-out be on the same shaft, see picture:
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-discovery457.edited-2.png](https://landroverforums.com/forum/attachments/discovery-ii-18/27793d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-discovery457.edited-2.png)
4. Should the splined shaft indicated by the red arrow turn, and if so how easily, see picture:
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-916-torque-converter-edited-3.jpg](https://landroverforums.com/forum/attachments/discovery-ii-18/27794d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-916-torque-converter-edited-3.jpg)
5. How easily should the ATF pump turn?
1. Flex plate, why did my flex plate fail - see picture
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-flexplate.jpg](https://landroverforums.com/forum/attachments/discovery-ii-18/27790d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-flexplate.jpg)
2 On the input shaft, which I think is the splined shaft shown coming out of the transmission in the following picture, the axial end-float should measure 0.2 to 0.4 mm(0.008 to 0.016 in.).
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-discovery457.edited-fore-aft.png](https://landroverforums.com/forum/attachments/discovery-ii-18/27791d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-discovery457.edited-fore-aft.png)
Have I understood the manual in that the axial end float is measured fore to aft, from the torque converter towards the transfer case?
3. What should my radial run-out be on the same shaft, see picture:
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-discovery457.edited-2.png](https://landroverforums.com/forum/attachments/discovery-ii-18/27793d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-discovery457.edited-2.png)
4. Should the splined shaft indicated by the red arrow turn, and if so how easily, see picture:
![Disco 2004 90K: Failed flex Plate and transmission questions, with pictures-916-torque-converter-edited-3.jpg](https://landroverforums.com/forum/attachments/discovery-ii-18/27794d1462298544t-disco-2004-90k-failed-flex-plate-transmission-questions-pictures-916-torque-converter-edited-3.jpg)
5. How easily should the ATF pump turn?
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