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We have recently rebuilt a TXL25 transmission because of low main pressure, when we stripped down the transmission it was found to have a worn pump. We also replaced all the sealing rings (steel ring similar to piston ring). Since the transmission was refit the main pressure is correct. However the torque convertor outlet pressure is high. Graziano manuals stats 4.5 to 5 bar at 2000rpm at 100 degrees C. We are getting 7.5 bar at 2000 rpm and 100 degrees C. We have checked the control valve and there is no worn or sticking parts.
Is there something i could be missing?

What problems would it cause if the pressure was left at 7.5 bar?
  • Posted 26 Jan 2013 00:45
  • By Leon_W
  • joined 7 Sep'07 - 326 messages
  • Tyne & Wear, United Kingdom

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Fact of the week
In Germany, the 9th of November is sometimes called Schicksalstag, the "Day of Fate" because it has been the day for several major historical events, including the horrors of Kristallnacht in 1938 and the fall of the Berlin Wall in 1989.